max98090 evaluation kit (wlp) evaluates: max98090 (wlp) · max98090 evaluation kit (wlp) evaluates:...

Evaluates: MAX98090 (WLP)MAX98090 Evaluation Kit (WLP)

General DescriptionThe MAX98090 (WLP) evaluation kit (EV kit) is a fully assembled and tested circuit board that evaluates the MAX98090 (WLP) audio codec. The MAX98090 is an integrated audio codec including an earpiece amplifier, stereo Class D amplifier, stereo DirectDrive® headphone amplifier, and digital signal processing.To enable easy connection to a wide range of audio sources, the EV kit includes audio devices to convert both USB and S/PDIF data to I2S data. The EV kit also integrates a MAXQ2000 microcontroller to enable I2C and SPI communication with the on-board I2C- and SPI-capable devices. A simple and intuitive graphical user interface (GUI) provides communication with the EV kit through Windows® OS running Windows XP®-, Windows 7-, or Windows 8-compatible software.

Features ● 2.8V to 5.5V Single-Supply Operation ● Proven Audio PCB Layout ● On-Board USB-to-I2C Interface ● On-Board USB-to-I2S Converter ● On-Board S/PDIF Transceiver ● On-Board Clock Source ● On-Board Digital Microphone ● Windows XP-, Windows 7-, and Windows

8-Compatible Software ● Proven PCB Layout ● Fully Assembled and Tested

19-7570; Rev 0; 3/15

Ordering Information appears at end of data sheet.

DirectDrive is a registered trademark of Maxim Integrated Products, Inc.Windows and Windows XP are registered trademarks and registered service marks of Microsoft Corporation.

Figure 1. Simplified EV Kit Block Diagram

SPDIFIN

SPDIFOUT

USB AUDIO

USB CONTROL

IN3 IN4 IN1 IN2

MAX98090

LOUTR LOUTL

IN6

IN5

Audio DAC With USB Interface

S/PDIF Transceiver

1.2V/1.8V

U1

Analog Inputs

HPL/

HPR/

MIC

Analog Outputs

SPKL

SPKR

SPKVDD

DVDD

DVDDIO

HPVDDAVDD

1.8V/3.3V

1.8V

I2C, SPI, GPIO Interface

Automatic Configuration Switch (SW1)

DMICs

MAX98090 WLP EVALUATION KIT

Maxim Integrated │ 2www.maximintegrated.com


Quick StartRequired Equipment

● MAX98090 EV kit (WLP) ● Two A to mini-B USB cables (included) ● 2.8V to 5.5V, 2A DC power supply ● Set of headphones with a 3.5mm plug ● User-supplied Windows XP, Windows 7,

or Windows 8 PC with two available USB portsNote: In the following sections, software-related items are identified by bolding. Text in bold refers to items directly from the EV kit software. Text in bold and under-lined refers to items from the Windows operating system.

ProcedureFollow the steps below to configure the EV kit for PC audio playback to verify the EV kit’s functionality:1) Visit www.maximintegrated.com/evkitsoftware to

download the latest version of the MAX98090 soft-ware, 98090Rxx.ZIP. Save the software to a tempo-rary folder and uncompress the ZIP file.

2) Install the software and USB driver on your computer by running the INSTALL.EXE program inside the temporary folder. The program files are copied and icons are created in the Windows Start | Programs | Maxim EVKIT Software menu. During software installation, some versions of Windows may show a message indicating that this software is from an unknown publisher. This is not an error condition and it is safe to proceed with the installation.

3) Verify that all jumpers are in their default positions, as shown in Figure 2 (same as listed in Table 2).

4) Connect the power supply between the SPKVDD and GND PCB pads.

5) Set the power supply to 4.2V with a 2A current limit and turn it on.

6) Connect a USB cable between the PC and the J1 USB port (USB CONTROL) on the EV kit. A Windows message appears when connecting to the EV kit for the first time. Each version of Windows may have a slightly different message. If Windows reports that the device is ready to use, then the USB driver has been installed successfully.

7) If needed, the USB driver can be manually installed by navigating to the C:\Program Files(x86)\Maxim\MAX98090 folder (default installation directory) and following the instructions in the USB_Driver_Help_200.PDF document.

8) Connect the headphones to the headphone jack (HP).

9) Start the MAX98090 software by opening its icon in the Start | Programs | Maxim EVKIT Software menu. The software main window appears, as shown in Figure 4.

10) Wait while the software connects to the EV kit. Once the connection is established, the status bar at the bottom will indicate that the USB and Device are connected.

11) Once the USB and device connections have been established, select the Block Diagram tab.

12) Click on the USB block.13) Click Yes to automatically configure the EV kit for

USB audio playback.14) Connect a USB cable between the PC and the J2

USB port (USB AUDIO). Windows automatically detects the EV kit as a sound card and installs the USB audio class drivers.

15) Open Windows’ Sound dialog and select the Playback tab. A USB Audio DAC item, similar to Figure 3, is added to the list of available playback devices. All audio played through this device is sent to the EV kit.

16) Verify that the USB Audio DAC item is set as the default device.

17) Verify that audio can be heard through the connected headphones.

18) Quick start complete. Refer to the MAX98090 IC data sheet for additional information.

FILE DESCRIPTIONInstall.exe Install the MAX98090 software files on the computer

CDM21000.exe USB driver installer

Device Manager Shortcut to computer’s device manager

USB_Driver_Help_300.pdf USB driver installation help file

MAX98090 Software Files

http://www.maximintegrated.com/evkitsoftware



Figure 2. Default Shunt Configuration

Figure 3. Playback Device

U1

JU19

JU22

JU24

JU23

JU7

JU10

JU11

JU6

JU8

JU9

JU5

JU28

JU27

JU13

JU12

JU15

JU14

JU16

JU1

JU2

JU4

JU3

JU100

JU17

JU18



Figure 4. MAX98090 (WLP) Software Main Window



Detailed Description of SoftwareThe MAX98090 EV kit is intended to be evaluated with the MAX98090 software, as it provides an intuitive graphi-cal user interface (GUI) for programming the MAX98090 device and also includes a handful of features that are intended to aid evaluation. The MAX98090 software main window is divided into three sections: software buttons, status panel, and tabbed pages (Figure 4) . The buttons provide basic functionality and the status panel provides monitoring capabilities. The tabbed pages provide the controls for programming the MAX98090. The Quick Setup tab provides access to the device’s quick setup registers (0x04–0x0B). The Block Diagram tab provides access to all the device registers and utilizes diagram blocks to access dialog windows. The dialogs contain the GUI controls used to program the device. The Control Registers tab provides access to registers 0x00–0x45 as well as to the revision ID register, 0xFF. The EQ Registers tab provides access to the device’s parametric equalizer (EQ), registers 0x46–0xAE. The BQ Registers tab provides access to the device’s biquad (BQ) filter, registers 0xAF–0xBD.The MAX98090 software can be downloaded from www.maximintegrated.com/evkitsoftware. When evaluating with the EV kit and software, it is recom-mended that this document be used in conjunction with the MAX98090 IC data sheet.

Software ButtonsThere are four buttons available on the main window of the MAX98090 software: Power, Read All (F4), Reset

(F12), and Connect. These buttons are always acces-sible, regardless of the active tab.

PowerThe Power button programs the MX98090’s SHDN bit to enable/disable the device. When the device is disabled/enabled, the button image is gray/blue, respectively. When the device is in shutdown (SHDN bit = 0) the soft-ware is still able to communicate with the device, as its I2C interface remains active.

Read All (F4)The Read All (F4) button performs the following sequence of reads and updates the associated register tab. This function is also available from the Actions menu.

● Read the MAX98090 IRQ pin. This only updates the Status panel.

● Read the status register (0x01). This also updates the Status panel.

● Read control registers (0x03–0x45). ● Read parametric equalizer registers (only if the EQ

Registers tab is visible or if EQ bands are enabled). ● Read biquad registers (only if the BQ Registers tab

is visible or if the biquad filter is enabled). ● Read Revision ID register (0xFF). ● Read S/PDIF Transceiver (U201) registers.

Reset (F12)The Reset (F12) button resets the checked items as indi-cated on the Rest dialog window (Figure 5.). This function is also available from the Actions menu.

Figure 5. Reset Dialog

http://www.maximintegrated.com/evkitsoftware



Connect/DisconnectThe Connect/Disconnect button is used to connect or disconnect the software from the EV kit, which con-nects to a PC through its USB CONTROL (J1) port or a TCP connection. The button either displays Connect or Disconnect, depending on the current state of the EV kit connection.When the button displays Connect, it indicates that the software is not connected to the EV kit. Pressing the button initiates the connection sequence. When using a TCP connection, ensure that it has been set up in the software before pressing Connect. The TCP connec-tion is configured from the TCP Configuration Setup dialog, which is accessed by selecting Options | Connect Options | TCP from the Menu bar.When the button displays Disconnect, it indicates that the software is connected to the EV kit. Pressing the button initiates the disconnect sequence.

Status PanelThe MAX98090 Status panel, located on the left side of the software main window, displays the state of the six status bits (register 0x01), the shutdown bit (register 0x45), and the state of the MAX98090 hardware IRQ pin. The color of a Status label indicates whether it is asserted or not. When asserted the label is teal colored and when not asserted, the label is light gray. Note: A status bit’s interrupt must be enabled in order for the status bit to get updated in the Status register. The interrupts are enabled from the Interrupts block.

Quick Setup TabThe Quick Setup tab provides controls for configuring the quick setup registers (0x04–0x0B). These quick setup registers are write-only and function like pushbuttons. Refer to the Quick Setup Configuration section in the MAX98090 IC data sheet for additional details. As the first four steps are completed, the section at the bottom of Step 5 is updated. Checkmarks indicate that the step is complete and the Reg: and Bit- labels indicate which quick setup register and bit are programmed.For simplicity, this tab is divided into five steps as shown in Figure 6. The first three steps configure the System Clock, Sample Rate, Mode, and Format. The fourth step configures the audio Input and Output (I/O) signal path. As I/O selections are made, a corresponding image is shown in the Configuration group box, providing a visual representation of the selected path. When a valid

I/O path is selected Step 4 is complete. To clear the input and output selections, press the Clear button.Once all four checkmarks are visible, press the Configure button to program the device. If an invalid I/O path is selected, the software reports “Not a valid I/O configura-tion” and the I/O selections are cleared.

Block Diagram TabThe MAX98090 software uses a block diagram to facilitate the programming of the MAX98090 as well as provide a visual representation of the device’s functions and current configuration. The controls for a given function(s) are grouped on the same dialog window, which is opened by clicking on the associated block image. The blocks that are within the dotted border are related to the MAX98090 device and the blocks outside the dotted border are for the associated support circuitry.There are two types of blocks in the block diagram and they are distinguished by the mouse cursor image. The mouse cursor will change to a hand when over an active block and will change to an up-arrow when over a toggle block. An active block opens a dialog window, containing controls for configuring the device. A toggle block does not open a dialog window, but toggles a specific setting when clicked.The color of the blocks changes, depending on the enabled state of the function(s) it controls. A disabled block is grey and an enabled block is teal. Figure 7 shows the block diagram with the MAX98090 configured for USB audio input and headphone output. Note: A disabled/enabled block does not necessary indicate that its associated audio path is disabled/enabled.

S/PDIF and USBThe S/PDIF and USB blocks are outside the dotted border and thus not related to the MAX98090 device. These blocks represent the stereo digital audio trans-ceiver (U201) and the USB stereo audio DAC (U200) that are designed onto the EV kit. These blocks are used to enable the associated circuits, but also include controls that automatically configure the MAX98090 to work with the enabled audio device.The S/PDIF and USB audio devices are connected to the MAX98090 I2S bus through analog switches (U9–U11), which are controlled through the MAX98090 software. These switches are automatically configured once the S/PDIF or USB block is enabled, but they can be toggled by clicking on the switch blocks.



Figure 6. Quick Start Tab

Figure 7. MAX98090 Software Block Diagram



Dialog WindowsDialog windows are associated with specific blocks in the block diagram and they contain the controls for configur-ing the registers that are associated with that particular block of the MAX98090 device. The highlighted blocks in Figure 8 are the blocks that share a dialog window. In addition, the blocks that are outlined can have their dialog windows synchronized to each other. This dialog sync feature is a software feature and is enabled by selecting the Sync Right and Left checkbox in the dialog window. When enabled, the software programs the same user configurations to both the left and right output channels. A dialog window is opened by clicking on a diagram block. Figure 9 shows the typical GUI controls that are found on dialog windows and Figure 10 shows the biquad filter dialog. When a control’s state is changed, it results in the programming of the associated device register(s).The biquad dialog uses the same types of controls as other dialogs, but it also provides a plot of the filter’s amplitude and phase. This provides a visual represen-tation of the programmed coefficients as well as some insight into the filter’s behavior. The only two blocks that use this type of biquad filter dialog are the Biquad Filter and Parametric Equalizer blocks. The filter dialog shown in Figure 10 is for the 7-band parametric equalizer as can be seen by the seven available filters. Each filter can be individually programmed and when selected will show up as yellow lines on the plots. A sum of all the enabled filters can be displayed by selecting the Show Cascade checkbox. The cascaded response will show up as a blue line on the plots. The Biquad Filter dialog window is similar to that shown in Figure 10, except that it is only a single biquad filter.

Registers TabsThe MAX98090 software has three device register tabs: Control Registers, EQ Registers, and BQ Registers. These register tabs display the device’s registers in a typical register map format. Each of the register tabs provides two methods for configuring the device. As an example, Figure 11 shows the register tab elements of register 0x25.The first configuration method involves clicking on the register’s bit labels. A greyed-out bit label indicates that the bit is currently set low. A bold bit label indicates that the bit is currently set high. Clicking on a bit will toggle its state and result in a write to that register. This action also updates the value displayed in the register’s Edit box, located to the right of the bit labels. Note: Read-only bits

cannot be clicked/toggled and are only meant to display the register’s current state. These read-only bits are updated by performing a read all operation.The second configuration method involves entering a hexadecimal value in the register’s associated Edit box and then pressing the Enter key. The software will auto-matically configure the device register once the Enter key is pressed. This method also updates the state of the bit labels to reflect the value shown in the Edit box.

Control RegistersThe Control Registers tab provides access to most of the device’s control registers and all of its status registers. The range of registers accessible from this tab is from register address 0x00–0x45 and the revision ID register (0xFF).The Write All (F8) button writes to all the writeable registers on the Control Registers tab. It also writes to all the S/PDIF transceiver registers, and updates the configurable GPIOs.Register changes made through this tab are reflected on the Block Diagram tab. As such, the Control Registers tab and the Block Diagram tab are always in sync. However, register changes made through the Control Registers tab are not automatically reflected on open dialog windows. To have an open dialog window updated, close then reopen the dialog window.

Equalizer (EQ) RegistersThe main use of the EQ Registers tab is to provide access to the raw data contained in the EQ registers (0x46–0xAE). The preferred method for configuring the device’s equalizer is through the 7-Band Parametric Equalizer dialog window (Figure 10).The registers on this tab are grouped into seven bands (Band 1 through Band 7) and each band consists of fifteen registers. These fifteen registers are then divided into five coefficients (B0_, B1_, B2_, A1_, and A2_). The coefficients are configured by clicking the register bit labels or by entering a 24-bit hex-formatted value in its Edit box. For example, Figure 12 shows the coefficient B0 of Band 1.The Update Coefficients button updates the EQ register map to reflect any changes that were made through the 7-Band Parametric Equalizer dialog window. Note: Coefficient changes made through this EQ Registers tab are not reflected on the Block Diagram tab or the 7-Band Parametric Equalizer dialog window.



Figure 9. Dialog Windows

Figure 8. Diagram Blocks with Shared and/or Synchronized Dialog Windows



Figure 10. Biquad Filter Dialog Window

Figure 11. Register Tab Elements

Figure 12. Coefficient (B0) of EQ Band 1



Biquad (BQ) RegistersThe main use of the BQ Registers tab is to provide access to the raw data contained in the 15 BQ registers (0xAF–0xBD). The preferred method for configuring the device’s biquad filter is through the Biquad Filter dialog window.The BQ registers are divided into five coefficients (ADCB0–ADCA2) that are configured by clicking the register bit labels or entering a 24-bit hex-formatted value in the coefficient’s Edit box.The Update Coefficients button updates the BQ Registers tab to reflect any changes that were made through the Biquad Filter dialog window. Note: Coefficient changes made through the BQ Registers tab are not reflected on the Block Diagram tab or the Biquad Filter dialog window.

Menu BarAll the Menu bar items are described in Table 1. Additional information on a few of the menu items is provided in the following sections.

FileThe software’s save and load features are accessed from the File menu item. The save feature saves the data currently displayed on the Control Registers tab and S/PDIF Transceiver tab. The current state of the con-figurable GPIO pins is also saved to the configuration file. The data from the EQ Registers and BQ Registers tabs is saved if the filters are enabled.A configuration file’s main purpose is to capture the current state of the MAX98090’s registers, as displayed on the register tabs. This feature makes it easy to program a device to a saved/known state and allows for the sharing of configuration files between users. The file and save features can still be used when an EV kit is not connected. This allows configuration files to be created and opened without the hardware and further contributes to the sharing of configuration files. To facilitate file usage, use descriptive file names when saving configuration files. Since the configuration file is automatically generated by the software, it is not meant to be manually formatted and doing so may cause file loading issues. To open a con-figuration file for viewing use a plain text editor.Select File | Save Settings Ctrl+S to create a configura-tion file. Data is saved as tab-delimited values and the file is saved with a .98090 extension. To load a saved configuration file select File | Load Settings Ctrl+O. Only writeable registers will be pro-grammed with data from the loaded configuration file.

Connect OptionsThe Connect Options item is accessed from the Options menu. This menu item provides two options for connect-ing the EV kit to the MAX98090 software. The simplest method (MAXQ USB) uses a standard male-to-male USB cable (A to mini-B) connection. A local PC, running the MAX98090 software, connects to the USB CONTROL port (J1) on the EV kit. This method utilizes the on-board MAXQ2000 microcontroller circuitry to communicate with the MAX98090 I2C-capable device.The TCP option is used to set up an internet connec-tion between the EV kit and the software. To utilize this feature, additional hardware and software (not provided) are required. The additional tools would function as the communication medium between the ethernet connection and the MAX98090’s I2C bus. When using this option, the USB CONTROL port (J1) on the EV kit still needs to be powered, in order to supply the on-board LDOs.

Software VersionsThe MAX98090 software works with both packaged versions (TQFN and WLP) of the MAX98090. Each ver-sion of the MAX98090 has its own unique EV kit. The WLP version is evaluated on the MAX98090EVKIT#WLP kit and the TQFN version is evaluated on the MAX98090EVKIT#TQFN kit. Once an EV kit is connected to the host PC and a connection is established with the software, the program automatically detects the device type and configures the GUI accordingly.The Software Versions item from the View menu allows the GUI to be reconfigured. This is particularly useful when an EV kit is not connected and the user wants to generate a configuration file for a specific MAX98090 package. This feature can be used when an EV kit is connected to the software, but care must be taken since the software does not automatically revert the GUI back to the appropriate version. In this case the user needs to manually select the version that matches the connected device or perform a Disconnect-then-Connect operation.The main difference between the WLP and TQFN ver-sions of the MAX98090 is the additional inputs (IN5 and IN6) available on the WLP version. This difference results in changes to the Quick Setup, Block Diagram, and Control Registers tabs. These differences are also dis-cussed in the MAX98090 IC data sheet.



Table 1. Menu Bar ItemsMENU ITEM DESCRIPTION

FILE Load Settings Ctrl+O Loads a configuration file (as saved by the Save Settings option).

Save Settings Ctrl+S Saves a configuration file containing the current device settings.

Exit Closes the MAX98090 software.

VIEW

Show S/PDIF Transceiver Registers

Toggles the visibility of the S/PDIF Transceiver register tab, allowing for more control of the on-board S/PDIF transceiver (U201).

Software Versions MAX98090 TQFN

Reconfigures the block diagram and register tabs for the selected device. MAX98090 WLPOPTIONS

AutoconnectWhen selected, the software checks the connection status of the MAXQ2000 interface and the MAX98090 device approximately every second. If not connected, the software attempts to establish a connection.

Autoread Status When selected, the device’s status registers read approximately every second. The Status panel and Control Registers tab are refreshed after each read.

Autoshutdown for Register Writes

When selected, the software ensures that the MAX98090 is in shutdown before writing to certain registers. Refer to Table 90 of the MAX98090 data sheet for the registers that should only be programmed while the device is in shutdown.

I2C CLOCK SPEED 100kHz

Configures the clock speed of the I2C interface. 400kHz

ConfigureMCLKRoutingOpens the MCLK Routing dialog window that is used to select a clock source for the MAX98090 master clock (MCLK) input. In order for this clock to drive the MAX98090, a shunt must be placed on pins 1–4 of header JU14.

Connect Options Sets the interface method between the EV kit and MAX98090 software.

Cmod USB The MAX98090 EV kit interfaces to a local PC through its USB Control (J1) port.

TCP The MAX98090 EV kit interfaces to a remote PC through a TCP connection. Additional hardware setup required.

ACTIONS

Read All Registers F4 Reads all MAX98090 registers and updates the GUI. Also reads all of the S/PDIF transceiver (U201) registers.

Write All Registers F8Writes the data from the Edit boxes, on the Control Registers tab, to the MAX98090 device and updates the GUI. Also writes to the S/PDIF transceiver (U201) registers and updates all configurable GPIO pins.

Reset All Registers F12 Resets the device according to the check box selections on the Reset dialog window.

HELP About Pop-up window that provides information about the software.



Detailed Hardware DescriptionThe MAX98090 EV kit (WLP) evaluates the WLP pack-age version of the MAX98090 audio codec and provides access to all analog and digital inputs/outputs on the device. The EV kit also includes USB-powered linear-dropout (LDO) regulators that allow the EV kit to be evalu-ated with a single external supply (+2.8V to +5.5V). Integrated into the EV kit design are a stereo digital audio transceiver (U201) and a stereo audio DAC with USB interface (U200). The digital audio transceiver provides audio input and output through the on-board TOSLINK (SPDIFOUT and SPDIFIN) connectors and the USB audio DAC allows for audio input from the USB AUDIO port (J2).In addition, the EV kit includes a MAXQ2000 microcon-troller that facilitates evaluation by providing I2C, SPI, and GPIO interfaces, allowing the MAX98090 software to communicate with the devices on the EV kit.Power SuppliesThe EV kit requires a single 2.8V to 5.5V external supply (SPKVDD) to operate. All other MAX98090 supply inputs are powered from the J1 USB port. Jumpers JU1–JU4 (see Table 2) allow all MAX98090 supply inputs to be disconnected from USB power and connected to external supplies. In addition, jumpers JU1 and JU2 are used to configure the on-board voltage connected to DVDD and DVDDIO, respectively. See Table 2 for jumper JU1–JU4 configuration options.To perform supply current and power-consumption measurements use external supplies to power the MAX98090 supply inputs: HPVDD, AVDD, DVDD, and DVDDIO.

Jumper SelectionThe EV kit includes 25 jumpers to adjust various hard-ware configuration options. Table 2 describes all the jump-ers available on the EV kit.

Master Clock (MCLK) SelectionJumper JU14 selects which master clock (MCLK) source drives the MAX98090 device. The available clock configurations are listed in Table 3. When streaming audio through the on-board USB AUDIO port or S/PDIF connectors, the EV kit software will automatically config-

ure the U8 and U9 switches to route the appropriate clock signal to the MAX98090 MCLK input.If an external audio source is used, choose either the on-board 13MHz oscillator or an external clock. To connect an external clock, remove the shunt from JU14 and connect the clock to pin-1.

I2S Audio I/OThe EV kit provides three methods for evaluating the MAX98090’s digital audio interface (DAI). The first method is through the I2S header (JU15) and this provides the most direct connection to the MAX98090’s DAI. The two other methods involve streaming audio onto or off the EV kit. The USB AUDIO port (J2) is used to stream audio onto the EV kit. The SPDIFIN and SPDIFOUT opti-cal connectors are used to stream audio onto or off the EV kit, respectively.The USB and S/PDIF digital audio signals are switched onto the PCM bus through switches U10 and U11. The switches are automatically configured by the evaluation kit software, depending on which path has been enabled (USB or S/PDIF). Note: All PCM digital audio is routed through the I2S header before routing to the MAX98090’s DAI. This is true for the USB AUDIO input as well as for the S/PDIF I/O. See Figure 13.

Digital Audio Interface Header (JU15)Header JU15 provides access to the MAX98090 digi-tal audio interface (DAI). See Table 4 for individual pin descriptions. Follow the steps below to configure JU15:Direct connection of PCM digital audio:

● Remove the shunts from JU15 (place shunts on Position 1 for safekeeping).

● Connect the PCM signals/grounds to the corresponding Position 2 (Center) and Position 3 (Right) pins of JU15.

USB Audio input or SPDIF I/O: ● Install the four shunts between Position 2 and

Position 3 of JU15. ● For audio input, connect an audio output device to

the USB AUDIO or SPDIFIN connector. ● For audio output, connect an audio input device to

the SPDIFOUT connector.



Table 2. Jumper ConfigurationHEADER SHUNT POSITION DESCRIPTION

JU1

1-2* DVDD connected to +1.2V

2-3 DVDD connected to +1.8V

Open DVDD externally supplied

JU2

1-2 DVDDIO connected to +3.3V

2-3* DVDDIO connected to +1.8V

Open DVDDIO externally supplied

JU3Installed* AVDD connected to +1.8V

Open AVDD externally supplied

JU4Installed* HPVDD connected to +1.8V

Open HPVDD externally supplied

JU5Installed Connects JACKSNS to headphone jack, HP, for jack detection; ensure that a shunt is

installed on JU27/JU6 or JU28/JU22 for proper jack detection.

Open* Disconnects JACKSNS from the headphone jack, HP

JU6Installed Connects MICBIAS to the IN1 input through a 2.2kΩ resistor (for microphone input)

Open* Disconnects MICBIAS from the IN1 input

JU7Installed Connects MICBIAS to the IN3 input through a 2.2kΩ resistor (for microphone input)

Open* Disconnects MICBIAS from the IN3 input

JU8Installed Connects IN2 directly to ground for single ended operation

Open* Allows for differential operation

JU9Installed Connects IN2 to ground through a 2.2kΩ resistor (used when IN1 is mic biased)

Open* Disconnects IN2 from ground



JU11Installed Connects IN4 to ground through a 2.2kΩ resistor (used when IN3 is mic biased)


JU12Installed Connects the Digital Microphone data output to MAX98090

Open* Disconnects the Digital Microphone data output from MAX98090

JU13Installed Connects the Digital Microphone clock to MAX98090

Open* Disconnects the Digital Microphone clock to MAX98090

JU14 — See Table 3

JU15 — See Table 4

JU162-3, 5-6* Connects the on-board I2C master to MAX98090

Open Allows external I2C control of MAX98090

JU17Installed Removes AC coupling capacitor, C4, from LOUTL line output

Open* Adds AC coupling capacitor, C4, to LOUTL line output

JU18Installed Removes AC coupling capacitor, C5, from LOUTR line output

Open* Adds AC coupling capacitor, C5, to LOUTR line output



HEADER SHUNT POSITION DESCRIPTION

JU19Installed Connects MICBIAS to IN5 through a schottky diode and 2.2kΩ resistor

Open* Disconnects MICBIAS from IN5

JU22Installed Connects MICBIAS to IN5 through a 2.2kΩ resistor

Open* Disconnects MICBIAS from IN5

JU23Installed Connects IN6 to ground through a 2.2kΩ resistor (when IN5 is microphone biased)




JU27Installed Connects IN1 to the headphone jack, HP (for microphone input)

Open* Disconnects IN1 from the headphone jack, HP

JU28Installed Connects IN5 to the headphone jack, HP (for microphone input)

Open* Disconnects IN5 from the headphone jack, HP

JU100Installed* Connects the MAX98090 interrupt output (IRQ) to the on-board microcontroller

Open Disconnects the MAX98090 interrupt output (IRQ) from the on-board microcontroller

*Default position.

Table 3. Master Clock Source Configuration (JU14)

SHUNT POSITION CLOCK SOURCE1-2 Disabled

1-3 13MHz oscillator

1-4* Software-selected clock source

*Default position.

Table 4. DAI Header (JU15)JU16

POSITION 1(LEFT)

POSITION 2(CENTER)

POSITION 3(RIGHT)

GND CODEC_BCLK I2S_BCLK

GND CODEC_LRCLK I2S_LRCLK

GND CODEC_SDIN I2S_DAC

GND CODEC_SDOUT I2S_ADC

Figure 13. I2S Routing

CODEC_SDIN

CODEC_LRCLK

CODEC_BCLK

MAX98090 (U1) Digital Audio

Interface

CODEC_SDOUT

Position2 31

JU15

USB AUDIO

S/PDIF IN

S/PDIF OUT

I2S_SDIN

I2S_LRCLK

I2S_BCLK

I2S_SDOUT

U10

U11

U200

U201

Switches

4

4

2 31

Table 2. Jumper Configuration (continued)



Table 5. Analog Input Headers

INPUT PAIR SINGLE-ENDED/ DIFFERENTIAL HEADER

DIFFERENTIALMICROPHONE HEADER MICBIAS HEADER

IN1/IN2* JU8 JU9 JU6

IN3/IN4 JU10 JU11 JU7

IN5/IN6* JU24 JU23 JU22 or JU19

*The microphone input from the HP headset is routed to IN1 and IN5 of these input pairs

S/PDIF TransceiverThe S/PDIF transceiver (U201) serves as a format converter between I2S and S/PDIF. Use this device to send and receive digital audio over the optical connectors (SPDIFIN, SPDIFOUT).When receiving S/PDIF data, the transceiver outputs a recovered master clock that is exactly 256 x fS, where fS is the sample rate. This clock signal can be used to clock the MAX98090.When transmitting S/PDIF data, the transceiver requires a master clock input and if data is also being received, it uses the data to generate its own master clock. If S/PDIF data is not being received, the transceiver generates a master clock based on the LRCLK signal being output by the MAX98090. For proper transmit-only operation, the S/PDIF transceiver must be configured in master mode.The S/PDIF transceiver is controlled through the SPI interface of the on-board MAXQ2000 microcontroller. See the Control Interface section.

USB AudioThe audio DAC with USB interface (U200) accepts an audio stream from a PC, connected to the USB AUDIO port (J2), and converts it to I2S data. The USB audio DAC generates a master clock signal that can be used to clock the MAX98090. The clock signal is 256 x fS.The USB audio DAC supports standard class drivers that are included with most operating systems. As a result, no

drivers are required for this device and it will appear as a sound card in the PC. This allows for audio playback from the PC through the MAX98090 audio codec.

Analog InputsThe MAX98090 analog input pairs (IN1/IN2, IN3/IN4, and IN5/IN6) can be configured for microphone input, single-ended input, or differential input. These input connections are made through the provided RCA connectors or PCB pads (IN1–IN6). In addition, the IN1/IN2 and IN5/IN6 device inputs can be connected to the 3.5mm audio jack (HP) for single-ended microphone input from a headset. Table 5 lists the configuration headers associated with each input pair. See the specific input sections for con-figuration details.

Single-Ended and Differential InputsThe three analog input pairs are configured for single-ended or differential line input by configuring the associ-ated input headers (as listed in Table 6). For single-ended inputs, the input header configuration is independent of the input type. For differential inputs, the header configu-ration is different for microphone inputs powered by the MAX98090 MICBIAS output.

Analog MicrophoneWhen using the analog input pairs for microphone input, the MAX98090 microphone bias (MICBIAS) output can be used to power the connected microphone. The MICBIAS output is connected to the IN1, IN3, or IN5 inputs through the input’s associated MICBIAS header.

Table 6. Analog Input Header Configuration

INPUT SINGLE-ENDED DIFFERENTIAL DIFFERENTIAL MICROPHONE (W/MICBIAS)

IN1/IN2 JU8 = On JU8 = OffJU9 = Off

JU8 = OffJU9 = On


JU10 = OffJU11 = On


JU24 = OffJU23 = On



When evaluating with two analog microphones, and jack detection is required, the IN5 input needs to be connected to MICBIAS through jumper JU19. See Table 7.

Digital MicrophoneThe EV kit includes an on-board digital microphone (U3) for evaluation of the MAX98090’s digital microphone interface. The digital microphone interface is enabled and configured through the software. An additional digital microphone footprint (U2) is provided to exercise the device’s capability of interfacing with up to two digital microphones. Install shunts on jumpers JU12 and JU13 to connect the digital microphone(s) to the MAX98090 device. Refer to the MAX98090 IC data sheet for additional details.

Jack DetectionThe MAX98090’s flexible, software-configurable jack-detection interface is used to detect the presence or absence of a headphone/headset connected to the HP jack. To provide jack detection on the HP jack, install a shunt on header JU5.

Analog OutputsThe EV kit provides connections for each of the three analog outputs. Table 8 lists the outputs and their avail-able connections.

HeadphoneThe MAX98090 stereo headphone output (HPR/HPL) is routed to the on-board 3.5mm audio jack (HP), as shown in Figure 14. The HP jack also allows for a headset connection, with the microphone input (MIC) connected to either IN1 or IN5. See the Analog Inputs section for input configuration options.

StereoClassDSpeakerAmplifierThe MAX98090 integrates a filterless Class D stereo amplifier. In systems with short speaker traces, the stereo speaker outputs (SPKLP/SPKLN and SPKRP/SPKRN test points) can be connected directly to the speaker loads. Although this amplifier is designed to operate com-pletely filterless, the EV kit does provide stuffing options for two types of output filters.When long speaker cables are used, a ferrite bead plus capacitor filter can be installed to prevent excessive EMI radiation. Although it is best to choose filter components based on EMI test results, the combination of a 680pF capacitor (C48–C51) with the Murata BLM18SG331TN1 ferrite bead (FB1–FB4) generally works well. With this configuration, connect the speaker loads to the SPKLP/SPKLN and SPKRP/SPKRN test points.To allow analysis of the audio output with an oscillo-scope, or an analyzer not designed to accept Class D switching waveforms, populate L1–L4 with the includ-ed 22μH inductors and make connections, to external

Table 7. MICBIAS ConnectionMICROPHONE CONNECTION MICBIAS CONNECTED MICBIAS DISCONNECTED

IN1 JU6 = On JU6 = Off

IN3 JU7 = On JU7 = Off

IN5 JU22 = OnJU19 = Off

JU22 = OffJU19 = Off

IN5* JU22 = OffJU19 = On

JU22 = OffJU19 = Off

*Configuration for two analog microphones, requiring jack detection.

Table 8. Analog OutputsOUTPUT CONNECTIONS

Headphone 3.5mm audio jack (HP)

Speaker Un-filtered and filtered connection options (SPK_P/SPK_N and FSPK_P/FSPK_N)

Receiver/Line-Out RCA connectors (LOUTL and LOUTR)

Figure 14. Headphone Jack

MIC (Sleeve)HPSNS (Ring 2)

HPR (Ring 1)

HPL (Tip)

1

43

2



equipment or speakers, at FSPKLP/FSPKLN and FSPKRP/FSPKRN. The LC filter is designed to work best with an 8Ω load. Do not connect a load to the unfiltered SPKLP/SPKLN and SPKRP/SPKRN outputs when L1–L4 are installed.

Receiver/Line OutputThe MAX98090 receiver/line output can be configured either as a differential receiver/earpiece output or as a stereo single-ended line output. The receiver/line outputs are routed, through AC-coupling capacitors, to the LOUTL and LOUTR RCA connectors. The AC-coupling capacitors can be shorted (effectively removed from the signal path) by installing a shunt on JU17 and JU18.

Control InterfaceThe MAXQ2000 (U100) microcontroller circuitry is the bridge between the on-board interface-enabled devices and the EV kit software, running on a PC connected to the USB CONTROL port (J1). The EV kit utilizes the MAXQ2000’s I2C, SPI and GPIO interfaces. See the Detailed Description of Software section for additional software details.

I2C InterfaceThe MAXQ2000’s I2C interface is routed to the MAX98090 device through jumper JU16, by installing shunts across pins 2-3 of each row (see Table 9). When using an external I2C master, remove both shunts from JU16 and connect the external SDA and SCL signals to the position-2 pins of JU16. Ground connections can be made to the position-1 pins of JU16. Install pullup resistors at R15 and R16 if the external master does not include pullup resistors.

SPI InterfaceThe MAXQ2000 SPI interface is used to control the on-board S/PDIF transceiver (U201). In the MAX98090 soft-ware go to View | Show S/PDIF Transceiver Registers to activate the S/PDIF Transceiver tab.

GPIO Interface and Pushbutton ProgrammerSix of the MAXQ2000 general-purpose inputs/outputs (GPIOs) are used for either controlling or monitoring a specific on-board device/signal. Four of the GPIOs are used as general-purpose outputs and are automatically set/cleared based on configuration settings made through the MAX98090 software. The other two GPIOs are used as general-purpose inputs to monitor a specific signal. The first general-purpose input (CODEC_IRQ) is connected to the MAX98090 inter-rupt (IRQ) output. This IRQ is monitored by the microcon-troller and its state is reported in the Status group box on the left side of the software main window. This general-purpose input can be disconnected from the MAX98090’s IRQ output by removing the shunt from jumper JU100.The second general-purpose input is connected to a tactile switch (SW1) to realize a pushbutton programmer. When SW1 is pressed, the MAXQ2000 microcontroller responds by transmitting a sequence of configuration settings that have been preprogrammed into its firmware. This allows the EV kit to be quickly programmed with a specific configuration, without the need for a PC running the software. By default, the pushbutton programming feature is not enabled.

Table 9. I2C Header (JU16)JU16

POSITION 1(LEFT)

POSITION 2(CENTER)

POSITION 3(RIGHT)

GND CODEC_SCL SCL

GND CODEC_SDA SDA



Ordering InformationPART TYPE

MAX98090EVKIT#WLP EV Kit

#Denotes RoHS compliant.

Component List, Schematics, and PCB Layout DiagramsSee the following links for component, schematic, and PCB information:

● MAX98090WLP BOM ● MAX98090WLP schematic ● MAX98090WLP PCB

Maxim Integrated cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim Integrated product. No circuit patent licenses are implied. Maxim Integrated reserves the right to change the circuitry and specifications without notice at any time.

Maxim Integrated and the Maxim Integrated logo are trademarks of Maxim Integrated Products, Inc. © 2015 Maxim Integrated Products, Inc. │ 20


Revision HistoryREVISIONNUMBER

REVISIONDATE DESCRIPTION PAGES

CHANGED0 3/15 Initial release —

For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxim Integrated’s website at www.maximintegrated.com.

MAX98090EVKIT#WLP BILL OF MATERIALS Rev 0; 3/15

Parent Number Item Component Description Qty Reference Designator Manufacturer Manufacturer Part Number Assembly Comments

MAX98090EVKIT#WLP BIL 1 10uF ±20%, 6.3V X5R ceramic capacitor (0805) 4 C1, C3, C104, C202 TDK C2012X5R0J106M2 1uF ±10%, 6.3V X5R ceramic capacitor (0402) 19 C2, C11, C12, C13, C15, C18, C24, C26, C27, C29-C35, C200,

C201, C204TDK C1005X5R0J105K

3 1uF ±20%, 6.3V X5R ceramic capacitor (0603) 10 C4, C5, C23, C25, C36, C37, C115-C118 Taiyo Yuden JMK107B7105MA4 0.1uF ±10%, 10V X7R ceramic capacitor (0402) 11 C6, C10, C40, C41, C61-C64, C203, C215, C216 Kemet C0402C104K8RAC5 10pF ±5%, 50V C0G ceramic capacitor (0402) 2 C8, C9 Murata GRM1555C1H100J6 0.01uF ±10%, 50V X7R ceramic capacitor (0603) 4 C20, C43, C211, C212 Murata GRM188R71H103K7 2.2uF ±10%, 6.3V X5R ceramic capacitor (0603) 2 C21, C22 Murata GRM188R60J225K8 2.2uF ±20%, 6.3V X5R ceramic capacitor (0402) 1 C28 Taiyo Yuden JMK105BJ225MV9 0.22uF ±10%, 6.3V XR5 ceramic capacitor (0402) 10 C38, C39, C52-C59 TDK C1005X5R0J224K10 OPOEN, Capacitors (0402) 9 C42, C44-C5111 10uF ±20%, 6.3V X5R ceramic capacitor (0603) 1 C65 Murata GRM188R60J106M12 0.1uF ±10%, 50V X5R ceramic capacitor (0603) 11 C100, C101, C105, C107-C110, C113, C114, C209, C210 TDK C1608X5R1H104K 13 8pF ±0.5pF, 50V C0H ceramic capacitor (0402) 4 C102, C103, C207, C208 Taiyo Yuden UMK105CH080DV 14 33000pF ±10%, 25V X7R ceramic capacitor (0603) 1 C106 Murata GRM188R71E333K15 18pF ±5%, 50V C0G ceramic capacitor (0603) 2 C111, C112 TDK C1608C0G1H180J16 47uF ±20%, 6.3V X5R ceramic capacitor (1206) 2 C205, C206 Murata GRM31CR60J476M17 0.47uF ±10%, 6.3V X5R ceramic capacitor (0603) 1 C213 Murata GRM188R60J474K18 47000pF ±10%, 25V X7R ceramic capacitor (0603) 1 C214 Murata GRM188R71E473K19 Shottky Diode (SOT23) 1 D2 Rohm RB411DT14620 LED, yellow (0603) 1 D100 Lite-On LTST-C190YKT21 LED, red (0603) 1 D101 Lite-On LTST-C190CKT22 Ferrite bead (0603) 2 FB100, FB200 Murata BLM18PG221SN123 0Ohms ±5% resistor (0603) 4 FB1-FB424 0Ohms ±5% resistor (0402) 2 FB5, FB625 Ferrite bead (0402) 6 FB7-FB12 Murata BLM15HD182SN126 USB Mini B Receptacle 2 J1, J2 Hirose Electric UX60A-MB-5ST27 3.5mm stereo jeadphone jack, 4 positions 1 HP CUI Inc. SJ-43514-SMT28 RCA jack, PC mount, non-switched (red) 8 IN1, IN2, IN3, IN4, IN5, IN6, LOUTL, LOUTR Kobiconn 161-0096-E29 Digital Audio Optical Transmitter 1 SPDIFOUT Everlight Electronics PLT133/T930 Digital Audio Optical Receiver 1 SPDFIIN Everlight Electronics PLR135/T931 3-pin header, 0.1" centers 2 JU1, JU2 Sullins PEC36SAAN Cut to fit32 2-pin header, 0.1" centers 20 JU3-JU13, JU17-JU19, JU22-JU24, JU27, JU28, JU100 Sullins PEC36SAAN Cut to fit33 4-pin (3-way) header, 0.1" centers 1 JU14 Sullins PEC36SAAN Cut to fit34 12-pin (3x4) header, 0.1" centers 1 JU15 Sullins PEC36DAAN Cut to fit35 6-pin (3x2) header, 0.1" centers 1 JU16 Sullins PEC36DAAN Cut to fit36 OPEN, inductors (62mm x 6.3mm) L1-L4 Toko #A916CY-220M37 Ferrite bead, 47uH 220mA (1812) 1 L200 Murata LQH43MN470J03L38 MOSFET, -20V, -2.4A, P-channel (SuperSOT-3) 1 P100 Fairchild FDN304P Top mark 30438 MOSFET, -20V, -2.4A, P-channel (SuperSOT-3) 1 P100 Fairchild FDN304PZ Top mark 04Z39 0 Ohms ±5% resistor (0402) 15 R1, R2, R9-R13, R32, R33, R38-R41, R111, R20740 10K Ohms ±5% resistor (0402) 1 R541 OPEN, resistor (0402) 4 R6, R15, R16, R1942 2.2K Ohms ±5% resistor (0402) 6 R14, R17, R18, R20, R29, R3743 22 Ohms ±5% resistor (0402) 6 R21, R22, R23, R24, R200, R20144 10K Ohms ±5% resistor (0603) 2 R34, R10745 1.5K Ohms ±5% resistor (0603) 5 R100, R101, R104, R202, R20446 27 Ohms ±5% resistor (0603) 2 R102, R10347 470 Ohms ±5% resistor (0603) 1 R10548 2.2K Ohms ±5% resistor (0603) 1 R10649 220 Ohms ±5% resistor (0603) 2 R108, R11050 1K Ohms ±5% resistor (0603) 1 R10951 1M Ohms ±5% resistor (0603) 1 R20352 47K Ohms ±5% resistor (0603) 1 R20553 402 Ohms ±1% resistor (0603) 1 R20654 SPST tactile switch, 12V, 0.5A 1 SW1 E-Switch TL3302AF260QJ55 Stereo Audio Codec (49 WLP) 1 U1 MAXIM MAX98090AEWJ+56 OPEN, Digital Microphone (6 LGA) 1 U2 Knowles Acoustics SPM0423HD4H-WB57 Digital Microphone (6 LGA) 1 U3 Knowles Acoustics SPM0423HD4H-WB DO NOT WASH57 Digital Microphone (6 LGA) 1 U3 Knowles Acoustics SPM0423HE4H-WB DO NOT WASH58 Single CMOS switch debouncer (4 SOT143) 1 U4 MAXIM MAX6816EUS+59 1.8V Low Noise Linear Regulator (5 SOT23) 1 U5 MAXIM MAX8887EZK18+ Topmark: ADPX60 300mA LDO regulator (SOT23-6) 1 U6 MAXIM MAX1963AEZT120+61 3.3V Low Noise Linear Regulator (5 SC70) 2 U7, U104 MAXIM MAX8511EXK33+ Topmark: AEI62 Dual SPDT switch (10 uDFN) 4 U8-U11 MAXIM MAX4906ELB+63 Low Power Microcontroller (56 TQFN) 1 U100 MAXIM MAXQ2000-RBX+64 USB to Uart interface (32L-TQFN) 1 U101 FTDI FT232BQ 65 3-wire EEPROM, type 93C46 (SOIC-8) 1 U102 Ateml AT93C46EN-SH-B 66 2.5V Low Noise Linear Regulator (5 SC70) 1 U103 MAXIM MAX8511EXK25+ Topmark: ADV67 Audio DAC with USB interface (32 QFP) 1 U200 TI PCM2707PJT68 Digital Audio Transceiver (28 SO) 1 U201 Cirrus Logic CS8427-CSZ69 13Mhz clock oscillator (2.5mm x 2.0mm) 1 Y1 ECS Inc. ECS-2033-130-BN70 6MHz crystal 1 Y100 Hong Kong X'tals SSL60000N1HK188F0-071 crystal, 16MHz (3.2mm x 2.5mm) 1 Y101 Kyocera CX3225SB16000D0FLJZZ72 crystal, 12MHz (3.2mm x 2.5mm) 1 Y200 Kyocera CX3225SB12000D0FLJZZ73 Test Point “Miniature” 40mil drill size (red) 6 BCLK, LRCLK, SDIN, SDOUT, /IRQ\, MCLK Keystone 500074 Test Point “Multipurpose” 63mil drill size (red) 4 SPKLP, SPKRP, HPR, HPL Keystone 501075 Test Point “Multipurpose” 63mil drill size (Black) 8 SPKLN, SPKRN, GND(x5), HPGND Keystone 501176 Shunt, Shorting Jumper, 2 position, 0.1 center 29 Kycon SX1100-B77 Buss wire, 20G plated solid copper 0.25 inch U-shape wire loop 24 IN1, IN2, IN3, IN4, IN5, IN6, JACKSENSE, RCVP/LOUTL,

RCVN/LOUTR, FSPKLP, FSPKLN, FSPKRP, FSPKRN, DVDD, DVDDIO, AVDD, HPVDD, SPKVDD, GND(x6)

Weico Wire 9020 Buss

78 PCB 1 MAX98090 WLP EVALUTION KIT Via Systems79 PCB 1 MAX98090 WLP EVALUTION KIT MEI80 PCB 1 MAX98090 WLP EVALUTION KIT Gorilla Circuits

PACK-OUT 1 Cable, USB high-speed A-to-mini B 12 Inductor, 22uH, 1A (6.2mm x 6.3mm) 1


SHEET: OF 6

A

01/23/13

EPCB98090WLP

1

DRAWN:

DATED:

PCB PART NUMBER:

TITLE:

REV:

JACKSENSE

GND

RCVP/LOUTL

GND

IN1

C26

1uF

C24

1uF

C35

1uF

C34

1uF

C2

1uF

R14

2.2k

C29

1uF

JU6

R37

2.2k

JU7

JU5

C30

1uF

FB7

FB8

C31

1uF

IN2

IN3

C32

1uF

FB9

IN4

C33

1uF

FB10

R17

2.2k

JU8

JU9

JU11

JU10

R18

2.2k

RCVN/LOUTR

FB1

0

L1

OPEN

C52

0.22uF

C48

OPEN

FSPKLP

R21

22

C38

0.22uF

C49

OPEN

C53

0.22uF

L2

OPEN

FB2

0

R22

22

C56

0.22uF

C57

0.22uF

FSPKLN

FSPKRP

C59

0.22uF

C58

0.22uF

R24

22

FB4

0

L4

OPEN

C55

0.22uF

C51

OPEN

C39

0.22uF

R23

22

FSPKRN

C50

OPEN

C54

0.22uF

L3

OPEN

FB3

0

C8

10pF

FB5

0

HPR

FB6

0

C9

10pF

R1

0

C27

1uF

C10

0.1uF

C28

2.2uF

C18

1uF

C12

1uF

C1

10uF

R6

OPEN

R5

10k

1

2

3

4

HP

R2

0

C13

1uF

HPL

SPKRN

SPKRP

SPKLP

SPKLN

CPVDD

CPVSS

C1N

C1P

VCM

REF

HPGND

1

2

IN1

1

2

IN2

1

2

IN3

1

2

IN4

1

2

LOUTR

1

2

LOUTL

IRQ

R39

0

R40

0

R41

0

R38

0

GND

GND

C65

10uF

R20

2.2k

JU22

IN5

C11

1uF

FB11

IN6

C15

1uF

FB12

JU23

JU24

R29

2.2k

1

2

IN5

1

2

IN6

R32

0

R33

0

JU2

7

JU2

8

G4

MCLK

G5

BCLK

F5

LRCLK

E5

SDIN

G6

SDOUT

E2

SDA

D3

SCL

F4

IRQ

C7

MICBIAS

A7

IN1/DIGMICDATA

B7

IN2/DIGMICCLK

B6

IN3

C6

IN4

B5

JACKSNS

C1

RCVP/LOUTL

B1

RCVN/LOUTR

A4

SPKLP

A5

SPKLN

A2

SPKRN

A3

SPKRP

D1

HPR

E1

HPL

D2

HPSNS

D6

REF

G3

HP

VD

D

E6

VCM

B3

SP

KV

DD

B4

SP

KV

DD

E7

AV

DD

F7

DV

DD

F6

DV

DD

IO

F3

C1

P

F2

C1

N

G2

CP

VS

S

A6

SP

KL

GN

D

A1

SP

KR

GN

D

G1

HP

GN

D

D7

AG

ND

G7

DG

ND

F1

CP

VD

D

E4

NC

E3

NC

D5

NC

C5

NC

C3

NC

B2

NC

C2

NC

C4

IN5

D4

IN6

U1

MAX98090WLP

C4

1uF

C5

1uF

JU17

JU18

JU19

1

3

D2

20V 500mA

GND

GND

AVDD

DVDD

DVDDIO

JACKSNS

CODEC_MCLK

CODEC_BCLK

CODEC_LRCLK

CODEC_SDIN

CODEC_SDOUT

CODEC_SDA

CODEC_SCL

CODEC_IRQ

CODEC_DIGMICDATA

CODEC_DIGMICCLK

MICBIAS

SPKVDD

+1.8V

3V3

MIC

HPSNS

HPSNS

MIC

MICBIAS

MICBIAS

HPVDD

MICBIAS

MIC

MIC

MICBIAS

DATED:

REVISION:

DATED:

REVISION:

DATED:

REVISION:

DATED:

REVISION:

DATED:

REVISION:

EPCB98090WLP

01/23/13

A

TITLE:

REV:

DRAWN:

DATED:

APPROVAL

DATED:

REVISION:

DATED:

PCB PART NUMBER:

2


SHEET: OF 6

JU15

JU16

JU15-1

JU15-2

JU15-3

JU15-4

JU15-5

JU15-6

JU15-7

JU15-8

JU15-9

JU15-10

JU15-11

JU15-12

C44

OPEN

R10

0

R11

0

C45

OPEN

C47

OPEN

R13

0

R12

0

C46

OPEN

JU16-1

JU16-2

JU16-3

JU16-4

JU16-5

JU16-6

R16

OPEN

R15

OPEN

BCLK

LRCLK

SDIN

SDOUT

1

GND

2

L/R

3

GND

5

DATA

4

CLOCK

6

VDD

U3

SPM0405HD4H-WB

1

GND

2

L/R

3

GND

5

DATA

4

CLOCK

6

VDD

U2

SPM0405HD4H-WB

OPEN

JU12

JU13

C41

0.1uF

R19

OPEN

C40

0.1uF

GND

CODEC_BCLK

I2S_BCLK

CODEC_LRCLK

CODEC_SDOUT

CODEC_SDIN

I2S_LRCLK

I2S_DAC

I2S_ADC

CODEC_SCL

CODEC_SDA

+1.8V

+1.8V

SCL

SDA

CODEC_DIGMICDATA

CODEC_DIGMICCLK

+1.8V

+1.8V

+1.8V

CLK1

CLK1


DATED:

REVISION:

DATED:

REVISION:

DATED:

REVISION:

DATED:

REVISION:

DATED:

REVISION:

EPCB98090WLP

01/23/13

A

TITLE:

REV:

DRAWN:

DATED:

APPROVAL

DATED:

REVISION:

DATED:

PCB PART NUMBER:

3

SHEET: OF 6

4

VCC

1

ON

3

OUT

2

GND

Y1

13MHz

R9

0

C42

OPEN

C43

0.01uF

1

2

3

4

JU14

MCLK

9

NC1

8

NC2

6

NO2

7

NO1

4

COM1

5

COM2

1

IN

2

SHDN/EN

10

V+

3

GN

D

U8

MAX4906

C61

0.1uF

9

NC1

8

NC2

6

NO2

7

NO1

4

COM1

5

COM2

1

IN

2

SHDN/EN

10

V+

3

GN

D

U9

MAX4906

C62

0.1uF

9

NC1

8

NC2

6

NO2

7

NO1

4

COM1

5

COM2

1

IN

2

SHDN/EN

10

V+

3

GN

D

U10

MAX4906

C63

0.1uF

9

NC1

8

NC2

6

NO2

7

NO1

4

COM1

5

COM2

1

IN

2

SHDN/EN

10

V+

3

GN

D

U11

MAX4906

C64

0.1uF

MCLK_SWITCH

CODEC_MCLK

+3.3V

13MHZ

I2S_SW

+3.3V

RMCK

PCM2707_MCLK

SWITCHED_MCLK1

MCLK_SW

+3.3V

SWITCHED_MCLK1

13MHZ

MCLK_SWITCH

I2S_SW

+3.3V

PCM2707_BCLK

CS8427_BCLK

I2S_BCLK

CS8427_LRCLK

PCM2707_LRCLK

I2S_LRCLK

I2S_SW

+3.3V

PCM2707_DAC

CS8427_DAC

I2S_DAC

CS8427_ADC

PCM2707_ADC

I2S_ADC


4

DRAWN:

01/23/13

DATED:

A

EPCB98090WLP

PCB PART NUMBER:

TITLE:

REV:

SHEET: OF 1

J2

USB

AUDIO

12

LRCK

17

DLRCK

13

SCLK

16

DSCLK

14

SDIN

18

SDOUT

10

RMCK

21

DMCK

1

SDA

28

SCL

2

AD0

27

AD1

24

H/S

4

RXP

5

RXN

26

TXP

25

TXN

3

EMPH

9

RST

11

RERR

15

TCBL

19

INT

20

U

8

FILT

23

VL

+

6

VA

+

22

DG

ND

7

AG

ND

U201

CS8427

1

OUT

3

VC

C

2

GN

D

SPDIFIN

TORX147L

3

IN

2

VC

C

1

GN

D

SPDIFOUT

TOTX147L

C211

0.01uF

C212

0.01uF

R205

47k

R206

402

1%

C214

47000pF

C213

0.47uF

FB200

C210

0.1uF

C209

0.1uF

L200

47uH

C215

0.1uF

C216

0.1uF

3

HOST

22

D-

23

D+

11

SSPND

16

PSEL

6

HID0/MS

7

HID1/MC

8

HID2/MD

12

XTI

13

XTO

17

DOUT

5

FUNC0

19

FUNC1

18

FUNC2

4

FUNC3

28

VOUTL

29

VOUTR

9

FSEL

32

VCOM

10

TEST

15

DT

14

CLK

21

VD

D

30

VC

CR

2

VC

CP

27

VC

CL

24

VB

US

25

ZG

ND

1

PG

ND

20

DG

ND

31

AG

ND

R

26

AG

ND

L

U200

PCM2707

R200

22

R201

22

4

GND

1

HOT

3

HOT

2

GND

Y200

12MHz

R203

1M

C208

8pF

C207

8pF

C206

47uF

R204

1.5k

C205

47uF

C204

1uF

C200

1uF

C201

1uF

C203

0.1uF

C202

10uF

R202

1.5k

J2-1

J2-2

J2-3

J2-4

J2-5

J2-6

J2-7

J2-8

J2-9

R207

0

CS8427_RST

CDIN

CS1

CCLK

CDOUT

RMCK

CS8427_DAC

CS8427_ADC

CS8427_BCLK

CS8427_LRCLK

+3.3V

VUSB

+3.3V

+3.3V

PCM2707_DAC

PCM2707_LRCLK

PCM2707_BCLK

PCM2707_MCLK

PCM2707_ADC

+3.3V

+3.3V

+3.3V

+3.3V

+3.3V

+3.3V

CONNECT


5

DRAWN:

01/23/13

DATED:

A

EPCB98090WLP

PCB PART NUMBER:

TITLE:

REV:

SHEET: OF 1

J1

D

S

G

USB

CONTROL

8

VCC

6

ORG

7

NC

5

GND

4

D0

3

D1

2

SK

1

CS

U102

AT93C46A

GND

VCC

6

3V3OUT

8

USBDM

7

USBDP

5

RSTOUT

4

RESET

27

XTIN

28

XTOUT

32

EECS

1

EESK

2

EEDATA

31

TEST

25

TXD

24

RXD

23

RTS

22

CTS

21

DTR

20

DSR

19

DCD

18

RI

16

TXDEN

12

TXLED

11

RXLED

14

PWRCTL

15

PWREN

10

SLEEP

13

VCCIO

26

3

VCC

30

AVCC

17

9

GND

29

AGND

U101

FT232BQ

Y100

6MHz

R102

27

R103

27

R104

1.5k

C111

18pF

C112

18pF

R106

2.2k

C113

0.1uF

C110

0.1uF

C109

0.1uF

C107

0.1uF

R105

470

C106

33000pF

R107

10k

C108

0.1uF

R108

220

D100

FB100

C105

0.1uF

C104

10uF

R109

1k

C114

0.1uF

2

1

3

P100

C115

1uF

C116

1uF

1

IN

3

SHDN

2

GND

5

OUT

4

N.C.

U103

MAX8511EXK25+

J1-1

J1-2

J1-3

J1-4

J1-5

J1-6

J1-7

J1-8

J1-9

R111

0

4

GND

1

HOT

3

HOT

2

GND

Y101

16MHz

C100

0.1uF

C102

8pF

C103

8pF

1

P1.0

2

P1.1

3

P1.2

4

P1.3

5

P1.4

6

P1.5

7

P1.6

8

P1.7

9

P2.4

10

P2.5

11

P2.6

12

P2.7

13

P3.4

14

P3.5

42

HFXIN

41

HFXOUT

40

VDD

39

P6.5

38

P6.4

37

P6.1

36

P6.0

35

GND

34

MISO

33

SCLK

32

MOSI

31

SS

30

32KOUT

29

32KIN

43

P7

.0

44

P7

.1

45

VL

CD

46

VL

CD

1

47

VL

CD

2

48

VA

DJ

49

P0

.0

50

P0

.1

51

P0

.2

52

P0

.3

53

P0

.4

54

P0

.5

55

P0

.6

56

P0

.7

28

RE

SE

T

27

TD

O

26

TM

S

25

TD

I

24

TC

K

23

GN

D

22

VD

DIO

21

CO

M0

20

CO

M1

19

CO

M2

18

CO

M3

17

SE

G2

4

16

P3

.7

15

P3

.6

U100

MAXQ2000-RBX

JU100

R101

1.5k

R100

1.5k

C101

0.1uF

C117

1uF

C118

1uF

1

IN

3

SHDN

2

GND

5

OUT

4

N.C.

U104

MAX8511EXK33+

D101

R110

220

R3

4

10

k

SW1

SW-MOM

C6

0.1uF

1

GN

D

2

IN

3

OUT

4

VC

C

U4

MAX6816

VUSB

+3.3V

VUSB

VUSB

VUSB

DSR

DTR

CTS

RTS

TXD

RXD

DCD

RI

+3.3V

VUSB

+5V

VUSB

+5V

+5V

+2.5V

+5V

+3.3V

CTS

SDA

SCL

CDOUT

CCLK

CDIN

CS1

DT

R

RI

RT

S

DC

D

DS

R

RX

D

TX

D

CO

DE

C_

IRQ

I2S

_S

W

CO

NN

EC

T

CS

84

27

_R

ST

+3.3V

+2.5V

MC

LK

_S

W

+3.3V

+5V

+3.3V

+3.3V

EPCB98090WLP

01/23/13

A

TITLE:

REV:

DRAWN:

DATED:

PCB PART NUMBER:

6


SHEET: OF 6

1

IN

3

SHDN

2

GND

5

OUT

4

N.C.

U7

MAX8511EXK33+

1

IN

2

GND

4

RESET

6

OUT

3

SHDN

5

I.C.

U6

MAX1963AEZT120+

C37

1uF

C36

1uF

DVDDIO

C25

1uF

C23

1uF

1

2

3

JU1

DVDD

GND

GND

SPKVDD

C3

10uF

1

IN

3

SHDN

2

GND

4

BP

5

OUT

U5

MAX8887EZK18+

C21

2.2uF

JU3

AVDD

C22

2.2uF

GND

GND

C20

0.01uF

JU4

HPVDD

1

2

3

JU2

DVDDIO

+1.2V

DVDD

SPKVDD

AVDD

+5V

+5V

+5V

+1.8V

HPVDD

+1.8V

3V3

+1.8V

max98090 evaluation kit (wlp) evaluates: max98090 (wlp) · max98090 evaluation kit (wlp) evaluates:...

Documents