5.1 channel amplifier
DESCRIPTION
AUDIOMAX 5.1 CHANNEL DVD CLASS-D AMPLIFIER EVALUATION BOARD USER’S GUIDETRANSCRIPT
Copyright © 2002 Revision 1.3
AUDIOMAX 5.1 CHANNEL DVD CLASS-D AMPLIFIER EVALUATION BOARD USER’S GUIDE
I N T E G R A T E D P R O D U C T S
LXE1722 6-CHANNEL EVALUATION BOARD USER GUIDE
Microsemi Linfinity Microelectronics Division
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570
Page 2Copyright 2000 Rev. 1.3,2003-06-27
TABLE OF CONTENTS Board Settings......................................................................................................................................................................................... 3 System Specifications ............................................................................................................................................................................. 4 Schematic................................................................................................................................................................................................ 5 Bill of Materials ...................................................................................................................................................................................... 9 Audio Measurements ............................................................................................................................................................................ 10
LXE1722 6-CHANNEL EVALUATION BOARD USER GUIDE
Microsemi Linfinity Microelectronics Division
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570
Page 3Copyright 2000 Rev. 1.3,2003-06-27
LXE1722 6-CHANNEL EVALUATION BOARD FEATURES AND CIRCUIT DESCRIPTION The LXE1722 6-CH Evaluation Board is a fully functional 5.1 channel class-D amplifier designed to support surround sound (five channels plus subwoofer) applications. Connection to a single power supply, 6 speakers, and an audio source (such as a DVD player) is all that is required to begin evaluating the amplifier.
Board Setting 1. Power and Ground connections: The terminal
VIN is for the power supply connection, “+” is connected to the positive polarity of power supply or battery (+7V ~ +25V); “-“ is connected to the negative polarity of the power supply or battery. Please make sure your power supply polarity connection and supply voltage is correct before you start to evaluate the board.
2. Speakers’ connections: LS – Left Surround Channel speaker output,
with +/- polarity; L – Left Channel speaker output, with +/-
polarity; S – Subwoofer speaker output, with +/-
polarity; C – Center channel speaker output, with
+/- polarity; R – Right Channel speaker output, with +/-
polarity; RS – Right Surround speaker output, with
+/- polarity; This evaluation board is designed for standard 4Ω speaker loads. If different impedance speakers are chosen, the output frequency response will not be optimized but can be easily modified to provide a flat frequency response. Please see application note AN16.
3. Audio input connections: RCA2 – Left Surround channel audio source
input, single-ended; RCA1 – Left channel audio source input,
single-ended;
RCA3 – Subwoofer channel audio source input, single-ended;
RCA4 – Center channel audio source input, single-ended;
RCA5 – Right channel audio source input, single-ended;
RCA6 – Right surround channel audio source input, single-ended;
4. SLEEP/MUTE connections: The SLEEP/MUTE circuit (Figure 1) of the amplifier has been designed to provide two methods of control, a “manual” control using the jumpers and an “automatic” means using a Microcontroller.
a. Jumper Method: Control SLEEP/MUTE through the SLEEP and MUTE header. This is achieved by setting the jumpers to the “OFF” position. Closing header pin 1 to pin 2 for SLEEP pulls the SLEEP/ control pin to VCC, thereby enabling the amplifier. Closing header pin 2 to pin 3 for MUTE pulls the MUTE control to ground, enabling the inputs. Reverse the jumper positions to “ON” to shut down or turn off the amp. The MUTE pin can be left open.
b. CPU Method: Close SLEEP jumper to “OFF” position (pin1,2) and MUTE jumper to “ON” position. This ties the controls to the external SLEEP/MUTE circuit which can utilize a CPU for active power up/power down control. Connect pin 1 and pin 2 of jumper J1 to the GPIO (General Purpose Input/Output) pin of the Microcontroller. For the SLEEP control, Logic “High” will SLEEP the system, Logic “Low” to release; for MUTE control, Logic “LOW” will MUTE the system, and Logic “High” to release. A delay time should be followed to minimize pop noise, during turn on. After SLEEP is set HIGH (controller enabled), wait ~150msec before controlling MUTE to LOW (enable inputs). To turn off the system, MUTE should be pulled HIGH (disable inputs) and then control SLEEP to LOW.
LXE1722 6-CHANNEL EVALUATION BOARD USER GUIDE
Microsemi Linfinity Microelectronics Division
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570
Page 4Copyright 2000 Rev. 1.3,2003-06-27
SYSTEM SPECIFICATIONS
LX1722 6-ch Parameter Symbol Test Conditions Min Typ Max Units
Supply Voltage VCC 7 25 V Idle Current IQ VCC = 25V 420 mA Sleep Status VCC = 25V -0.3 VCC+0.3 V Reference Voltage VREF VCC = 25V 5 V RPWM, CPWM, MUTE VCC = 25V -0.3 VREF+0.3 V LIN + LIN -, RIN +, RIN - VIN VCC = 25V -0.3 VREF+0.3 V LPREOUT, RPREOUT VPRE VCC = 25V -0.3 VREF+0.3 V Clock Frequency FOSC VCC = 25V 430 KHz
Distortion THD+N VCC = 25V, 4Ω Load, 10Hz ~ 22KHz BPF, PO= 1W, f = 1KHz 0.06 0.1 0.25 %
Distortion @ 20Hz ~ 20KHz THD+N VCC = 25V, 4Ω Load, 10Hz ~ 22KHz BPF, PO = 1W 0.05 0.4 %
VCC = 25V, 4Ω Load, 1% THD+N @ 10~22K BPF, f = 1KHz 60 W
PO
VCC = 25V, 4Ω Load, 10% THD+N @ 10~22K BPF, f = 1KHz 85 W
VCC = 25V, 2Ω Load, 1% THD+N @ 10~22K BPF, f = 1KHz, Subwoofer Only 105 W
VCC = 25V, 2Ω Load, 1% THD+N @ 10~22K BPF, f =100Hz, Subwoofer Only 105 W
VCC = 25V, 2Ω Load, 10% THD+N @ 10~22K BPF, f =1KHz, Subwoofer Only 150 W
Maximum Output Power
PO
VCC = 25V, 2Ω Load, 10% THD+N @ 10~22K BPF, f =100Hz, Subwoofer Only 150 W
Frequency Response VCC = 25V, 4Ω Load, 10Hz ~ 80KHz BPF, PO = 1W -0.5 dB
Noise Floor VN VCC = 25V, 4Ω Load, 10 ~ 22KHz BPF, A-weighted, no input 450 µVRMS
LXE1722 6-CHANNEL EVALUATION BOARD USER GUIDE
Microsemi Linfinity Microelectronics Division
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570
Page 5Copyright 2000 Rev. 1.3,2003-06-27
SCHEMATIC
OFF
SLEEP
123
MUTE
123
OFF
R1410k
R1210K
VCC
CPU SLEEP
CPU MUTER1610K
SLEEP_ON/OFF
MUTE_ON/OFF
Q15MMBT2222A/SOT
MUTE_ON/OFF
SLEEP_ON/OFF
R13
10K
MUTE
ON
CN
J1
12
_SLEEP
TO CPU
L100
R15
10K
VCC
VIN
12
Q16MMBT2222A/SOT
ON
R510K
Figure 1 – SLEEP/MUTE & DC IN Schematic
LXE1722 6-CHANNEL EVALUATION BOARD USER GUIDE
Microsemi Linfinity Microelectronics Division
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570
Page 6Copyright 2000 Rev. 1.3,2003-06-27
S C H E M A T I C ( C O N T I N U E D )
C460.68uF
C14A
100nF, 50V
CLOCK
R34
5.1, 1206
R55
0.030R, 1W
VCC
R5315, 5%, 1W
C410.68uF
R2A
51K
C440.47uF
CNFBK-
L6
15uH
TB4
AMPCON
1
2
CNFBK+
C420.47uF
C34100nF, 50V
C4
100pF, 50VR6
34.8K,1%
Red
R7A
56.2K, 1%
C11A
22pF, 50V, 5%, COG
R37
5.1, 1206
SI4558DY
Q9 34
7
1
2
8
6
5
R54
0.030R, 1W
C450.68uF
+ C12200uF35V
White
C430.68uF
R32
5.1, 1206
R19A
1.21K, 1%, 1/8W
C17A
4700pFC6A
100nF
C20A
100nF
MUTE
RCA3RCA JACK 1
2
R39
5.1, 1206
R11A
1.21K, 1%, 1/8W
+C5747uF
CENTER_OUT+
L7
15uH
R17A
1.21K, 1%, 1/8W
R9A
51K
C27100nF, 50V
RCA4RCA JACK
1
2
Q3RFD10P03LSM
S-
+
C18A
4.7uF, 16V,TANT
R10A22K
SFBK+
C10A
100pF, 50V
C9A 22pF, 50V
R35
5.1, 1206
CNFBK+
R33
5.1, 1206
C16A
4700pF
R8A22K
C22A
4700pF
R3A
10K, 5%, 1/8W
CENTER_OUT-
U2
LX1722CDB
2
3
14
15
13
18
1
16
12
11
4
5
6
7
8
9
10
17
19
20
21
22 23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
CPWM
RPWM
RIN+
RIN-
LAMPOUT
STATUS
LFAOUT
RAMPOUT
LIN-
LIN+
LMUTE
LEAOUT
LEAIN
VREF
CLOCK
GND
V25
_SLEEP
RMUTE
REAIN
REAOUT
RFAOUT RFBK-
RFBK+
RISN
NC
PVDD
CP
PGND
RN+
RP+
RP-
RN-
LN-
LP-
LP+
LN+
PGND
PVDD
CN
VDD
LISN
LFBK+
LFBK-
R36
5.1, 1206
C62
.68uF
Q2SUB70NO3-09BP
C25100nF, 50V
VCC
Q4SUB70N03-09BP
SFBK+
R38
5.1, 1206
C26
100nF, 50V
SFBK-
C61
.68uF
C13A22pF
Q1RFD10P03LSM
SFBK-
SYNCH
L8
15uH
C64
.68uF
R4A
56.2K, 1%, 1/8W
C3A22pF
C63
.68uF
R18A
1.21K, 1%, 1/8W
TB3
AMPCON
1
2
+ C5847uF
S+
+
C8A1uF, 25V, 10%, TANT
+
C19A
4.7uF, 16V,TANT
C21A4700pF
_SLEEP
SI4558DY
Q10 3
4
7
1
2
8
6
5
L5
15uH
CNFBK-
C12A
100pF, 50V, 5%, COG
R1A
10KR5015, 5%, 1W
Figure 2 – Master Channel (Subwoofer/Center) Schematic
LXE1722 6-CHANNEL EVALUATION BOARD USER GUIDE
Microsemi Linfinity Microelectronics Division
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570
Page 7Copyright 2000 Rev. 1.3,2003-06-27
S C H E M A T I C ( C O N T I N U E D )
R822K
+ C5647uF
L+
R4915, 5%, 1W
R4815, 5%, 1W
RCA2RCA JACK
1
2
VCC
C214700pF
R7
56.2K, 1%, 1/8W
SI4558DY
Q5 3
4
7
1
2
8
6
5
C1322pF
SB1FBK+
R9
51K
L3
15uH
RCA1RCA JACK
1
2
L2
15uH
R22
5.1, 1206
R21
0.030R, 1W
R11
1.21K, 1%, 1/8W
+
C8
1uF, 25V, 10%, TANT
R30
5.1, 1206
SI4558DY
Q8 3
4
7
1
2
8
6
5
SI4558DY
Q7 3
4
71
2
8
6
5
C14100nF
C32
100nF, 50V
R29
5.1, 1206
TB2
AMPCON
1
2
R4
56.2K, 1%, 1/8W
C370.47uF, 50V
VCC
R1022K
C20100nF
White
C55
.68uF, 50V
LS+R1 10K, 5%, 1/8W
R2
51K
C390.68uF, 50V
C24100nF, 50V
C12
100pF, 50V, 5%, COG
_SLEEP
R18
1.21K, 1%, 1/8W
White
R26
5.1, 1206
SB2FBK+
+
C19
4.7uF, 16V, TANT
SB2FBK-
C174700pF
SB2FBK-
+ C22200uF35V
R17
1.21K, 1%, 1/8W
C360.68uF, 50V
C23100nF, 50V
MUTE
C6
100nF, 50V
C54
.68uF, 50V
U1
LX1722CDB
2
3
14
15
13
18
1
16
12
11
4
5
6
7
8
9
10
17
19
20
21
22 23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
CPWM
RPWM
RIN+
RIN-
LAMPOUT
STATUS
LFAOUT
RAMPOUT
LIN-
LIN+
LMUTE
LEAOUT
LEAIN
VREF
CLOCK
GND
V25
_SLEEP
RMUTE
REAIN
REAOUT
RFAOUT RFBK-
RFBK+
RISN
NC
PVDD
CP
PGND
RN+
RP+
RP-
RN-
LN-
LP-
LP+
LN+
PGND
PVDD
CN
VDD
LISN
LFBK+
LFBK-
L1
15uH
+
C18
4.7uF, 16V, TANT
C33100nF, 50VL4
15uH
LS-
C400.47uF, 50V
C350.68uF, 50V
CLOCK
C322pF
C10
100pF, 50V
SYNCH
SB1FBK+
R23
5.1, 1206
SB2FBK+
C922pF, 50V
C53
.68uF, 50V
SB1FBK-
C15
.68uF, 50V
C11
22pF, 50V, 5%, COG
R27
5.1, 1206
C224700pF
R3
10K, 5%, 1/8W
R19
1.21K, 1%, 1/8W
SB1FBK-SI4558DY
Q6 3
4
7
1
2
8
6
5
R20
0.030R, 1W
L-
R25
5.1, 1206
R24
5.1, 1206
TB1
AMPCON
1
2
+C747uF
C380.68uF, 50V
C16
4700pF
Figure 3 – Slave A Channel (Left/Left Surround) Schematic
LXE1722 6-CHANNEL EVALUATION BOARD USER GUIDE
Microsemi Linfinity Microelectronics Division
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570
Page 8Copyright 2000 Rev. 1.3,2003-06-27
S C H E M A T I C ( C O N T I N U E D )
C30
100nF, 50V
R17B
1.21K, 1%, 1/8W
C520.68uF
R1B 10K, 5%, 1/8W
R47
5.1. 1206
RSFBK-
R5115, 5%, 1W
L12
15uH
C65
.68uF
R4B
56.2K, 1%, 1/8W
_SLEEP
R45
5.1, 1206L11
15uH
C68
.68uF
RS_OUT-
C66
.68uF
RSFBK+
C16B4700pF
C500.68uF
C480.68uF
C31100nF, 50V
+
C18B
4.7uF, 16V, TANT
C12B
100pF, 50V, 5%, COG
R7B 56.2K, 1%, 1/8W
C3B22pF
R44
5.1, 1206
R10B22K
RFBK-
C17B4700pF
R3B
10K, 5%, 1/8W
R19B
1.21K, 1%, 1/8W
R57
0.030R, 1W
MUTE
C14B100nF, 50V
+ C6047uF
C28100nF, 50V
CLOCK
C21B4700pF
C22B4700pF
RFBK-
VCC
C10B
100pF, 50V, 5%, COG
C13B22pF
R2B
51K
Red
R56
0.030R, 1W
R41
5.1, 1206L9
15uH
R9B
51K
R+
C6B100nF, 50V, 20%, X7R
RS_OUT+
C490.68uF
RCA6RCA JACK
1
2
R40
5.1, 1206SYNCH
R43
5.1, 1206
R5215, 5%, 1W
Red
+C52200uF35V
TB6
AMPCON
1
2
R-
C29100nF, 50V
+
C8B1uF, 25V, 10%, TANT
C11B
22pF, 50V, 5%, COG
VCC
RFBK+
SI4558DY
Q12 3
4
7
1
2
8
6
5
SI4558DY
Q14 3
4
7
1
2
8
6
5
C470.47uF
CN
+
C19B
4.7uF, 16V,TANT
RSFBK-
U3
LX1722CDB
2
3
14
15
13
18
1
16
12
11
4
5
6
7
8
9
10
17
19
20
21
22 23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
CPWM
RPWM
RIN+
RIN-
LAMPOUT
STATUS
LFAOUT
RAMPOUT
LIN-
LIN+
LMUTE
LEAOUT
LEAIN
VREF
CLOCK
GND
V25
_SLEEP
RMUTE
REAIN
REAOUT
RFAOUT RFBK-
RFBK+
RISN
NC
PVDD
CP
PGND
RN+
RP+
RP-
RN-
LN-
LP-
LP+
LN+
PGND
PVDD
CN
VDD
LISN
LFBK+
LFBK-
C20B100nF
L10
15uH+C5947uF
R46
5.1, 1206
RCA5RCA JACK
1
2
RFBK+
R42
5.1, 1206
R18B
1.21K, 1%, 1/8W
C67
.68uF
RSFBK+
TB5
AMPCON
1
2
R11B
1.21K, 1%, 1/8W
SI4558DY
Q13 34
7
1
2
8
6
5
C9B 22pF, 50V, 5%, COG
R8B22K
SI4558DY
Q11 3
4
7
1
2
8
6
5
C510.47uF
Figure 4 – Slave B Channel (Right/Right Surround) Schematic
LXE1722 6-CHANNEL EVALUATION BOARD USER GUIDE
Microsemi Linfinity Microelectronics Division
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570
Page 9Copyright 2000 Rev. 1.3,2003-06-27
BILL OF MATERIALS
M I S C E L L A N E O U S C O M P O N E N TS Line Item Part Description Manufacturer & Part # Case Reference
Designators Qty
1 IC, Controller MICROSEMI LX1722CDB QSOP44 U1, U2, U3 3
2 Transistor, P-Channel 30V FET FAIRCHILD RFD10P03LSM TO-252 Q1, Q3 2
3 Transistor, N-Channel 30V FET VISHAY SILICONIX SUB70N03-09BP TO-263 Q2, Q4 2
4 N & P Channel MOSFET 30V VISHAY SILICONIX SI4558DY SO-8 Q5 – Q14 10
5 Transistor, NPN MOTOROLA MMBT2222A SOT-23 Q15, Q16 2
6 PCB MICROSEMI SGE2823 PCB Rev X2 1
7 Inductor, 15µH ISI RL622-150K TH L1 – L4, L7 – L12 10
8 Inductor, 22µH ABRACON AIMT-117-22µH TH L5, L6 2
9 Ferrite Bead 1000 Ω MURATA BLM41P102SGPT 1206 L100 1
10 Phono Jacks, 90° Nickel Plated, Wht MOUSER 161-4214 TH RCA1, RCA3, RCA5 3
11 Phono Jacks, 90° Nickel Plated, Red MOUSER 161-4214 TH RCA2, RCA4, RCA6 3
12 Header Straight, .1” Center, 2POS AMP 87220-2 TH J1 1
13 Header Straight, .1” Center 3POs AMP 87220-3 TH Sleep, Mute 2
14 Shorting Jumpers, Open Top, Black MOUSER 151-8030 TH J1, Sleep, Mute 3
15 Terminal Block 2POS 5mm BLOCK MASTER 301-021-1000 TH LS, L, S, C R, RS, VIN 7
R E S IS TO R S Line Item Part Description Manufacturer & Part # Case Reference
Designators Qty
1 Resistor 10K, 5%, 1/8W ASJ CR21J103T SAMSUNG RC2012J103CS 0805 R1, R1A, R1B, R3, R3A, R3B,
R5, R12 – R16 12
2 Resistor 51K, 5%, 1/8W ASJ CR21J513T 0805 R2, R2A, R2B, R9, R9A, R9B 6
3 Resistor 22K, 5%, 1/8W ASJ CR21J223T 0805 R8, R8A, R8B, R10, R10A, R10B 6
4 Resistor 56.2K, 1%, 1/8W ASJ CR21F5622T 0805 R4, R4A, R4B, R7, R7A, R7B 6
5 Resistor 34.8K, 1% ASJ CR21F2382T 0805 R6 1
6 Resistor 1.21K, 1%, 1/8W ASJ CR21F1211T SAMSUNG RC1608F1211CS 0805
R11, R11A, R11B, R17, R17A, R17B, R18, R18A, R18B, R19,
R19A, R19B 12
7 Resistor 0.025Ω 1W 5% DALE WSL-2010-R025-1R86 IRC LRF2010-01-R025-F 2010 R20, R21, R54 –R57 6
8 Resistor 5.1Ω, 5%, 1/4W
ASJ CR32J5R1T KOA RM73B2BT5R1J PANASONIC ERJ8GEYJ5R1V SAMSUNG RC3216J5R1CS
1206 R22 – R27, R29, R30, R32 – R47 24
9 Resistor 15Ω, 5%, 1W KOA RM73B3A150J ROHM MCR100JZHJ150 2512 R48 – R53 6
LXE1722 6-CHANNEL EVALUATION BOARD USER GUIDE
Microsemi Linfinity Microelectronics Division
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570
Page 10Copyright 2000 Rev. 1.3,2003-06-27
C A P A C I T O R S Line Item Part Description Manufacturer & Part # Case Reference
Designators Qty
1 Cap 2200µF, 25V, 20% PANASONIC EEU-FC1E222 TH C1, C2, C5 3
2 Cap 22pF, 50V, 5%, COG NOVACAP 0805N330J500NT 0805 C3, C3A, C3B, C13, C13A, C13B 12
3 Cap 100pF, 50V, 5% COG NOVACAP 0805N101J500NT 0805 C4, C10, C10A, C10B, C12, C12A, C12B 7
4 Cap 100NF, 50V, 20%, X7R AVX 08055C104MAT2A NOVACAP 0805B104M500NT SAMSUNG CL21B104MBNC
0805 C6, C6A, C6B, C14, C14A,
C14B, C20, C20A, C20B, C23 – C34
21
5 Cap 4700pF, 25V, 5% CALCHIP GMC21CG472J50NT VENKEL C0805COG500-472JNE 0805
C16, C16A, C16B, C17, C17A, C17B, C21, C21A, C21B, C22,
C22A, C22B 12
6 Cap 47µF, 50V, 20% ELECT PANASONIC ECA-1HM470 NICHINCON UVX1H470ME TH C7, C56 – C60 6
7 Cap 1µF, 25V, 10%, TANT KEMET T491A105K025AS AVX TAJA105K025R 3216 C8, C8A, C8B 3
8 Cap 4.7µF, 16V, TANT KEMET T491A475M016AS AVX TAJA475M016R 3216 C18, C18A, C18B, C19, C19A,
C19B 6
9 Cap 0.47µF, 50V, through PANASONIC ECQ-V1H474JL TH C37, C40, C42, C44, C47, C51 6
10 Cap 0.68µF, 50V, through PANASONIC ECQ-V1H684JL TH C15, C35, C36, C38, C39,
C41, C43, C45, C46, C48 – C50, C52 –C55, C61 – C68
24
11 Cap, COG, 22pF, 50V, 5% NOVACAP 0805N220J500NT 0805 C9, C9A, C9B, C11, C11A, C11B 6
LXE1722 6-CHANNEL EVALUATION BOARD USER GUIDE
Microsemi Linfinity Microelectronics Division
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570
Page 11Copyright 2000 Rev. 1.3,2003-06-27
AUDIO MEASUREMENTS
A . T H D + N V S . P O W E R
0.001
100
0.01
0.1
1
10
%
100m 100500m 1 2 5 10 20 60.451.122
W
dx=0.000 W
10Hz ~ 22KHz BPF, 25VDC, 4ohm load, Input signal f = 1KHz Cyan-Left Surround; Green-Left; Red-Subwoofer; Magenta-Center; Yellow-Right; Blue-Right Surround
0 . 0 0 1
1 0 0
0 . 0 1
0 . 1
1
1 0
0 . 8 5 9 5 1
0 . 0 9 4 9 5
%
1 0 0 m 3 0 01 2 5 1 0 2 0 5 01 0 4 . 82 . 1 9 4
W
d x=-102.7 W d y=-0.76456 %
10Hz ~ 22KHz BPF, 25VDC, 2ohm load, Subwoofer Channel only Cyan-f = 100Hz; Green-f = 1KHz;
LXE1722 6-CHANNEL EVALUATION BOARD USER GUIDE
Microsemi Linfinity Microelectronics Division
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570
Page 12Copyright 2000 Rev. 1.3,2003-06-27
A U D I O M E A S U R E M E N T S ( C O N T I N U E D )
B . T H D + N V S . F R E Q U E N C Y
1 0 H Z ~ 2 2 K H Z B P F ; 4 O H M L O A D ; 2 5 V D C S U P P L Y
0 .0 0 1
1 0 0
0 .0 1
0 .1
1
1 0
0 .7 7 1 0 3
0 .2 5 8 4 9%
2 0 2 0 k5 0 1 0 0 2 0 0 5 0 0 1 k 2 k 5 k5 .0 2 5 k1 0 0 .2 2 5
H z
dx=-4.9248 kH z dy=-0.51254 % Channel Left & Left Surround Cyan – Po = 1W, L Green – Po = 1W, LS Red – Po = 10W, L Magenta – Po = 10W, LS Blue – Po = 37W, L Yellow – Po = 37W, LS
0 .001
100
0.01
0 .1
1
10
0.547110.28198%
20 20k50 100 200 500 1k 2k 5k5 .025k100.225
H z
dx=-4.9248 kHz dy=-0.26514 % Channel Subwoofer & Center Cyan – Po = 1W, SW Green – Po = 1W, CTR Red – Po = 10W, SW Magenta – Po = 10W, CTR Blue – Po = 50W, SW Yellow – Po = 50W, CTR
LXE1722 6-CHANNEL EVALUATION BOARD USER GUIDE
Microsemi Linfinity Microelectronics Division
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570
Page 13Copyright 2000 Rev. 1.3,2003-06-27
A U D I O M E A S U R E M E N T S ( C O N T I N U E D )
B . T H D + N V S . F R E Q U E N C Y ( C O N T I N U E D )
1 0 H Z ~ 2 2 K H Z B P F ; 4 O H M L O A D ; 2 5 V D C S U P P L Y
0 . 0 0 1
1 0 0
0 . 0 1
0 . 1
1
1 0
1 . 4 2 2 4 1
0 . 3 0 5 6%
2 0 2 0 k5 0 1 0 0 5 0 0 1 k 2 k 5 k5 . 0 2 5 k1 0 0 . 2 2 5
H z
d x=-4.9248 k H z d y =-1.11681 % Channel Right & Right Surround
Cyan – Po = 1W, R Green – Po = 1W, RS Red – Po = 10W, R Magenta – Po = 10W, RS Blue – Po = 37W, R Yellow – Po = 37W, RS
C . F R E Q U E N C Y R E S P O N S E
-10
+ 10
-8
-6
-4
-2
+ 0
+ 2
+ 4
+ 6
+ 8
-0.184-0 .685
dBr
10 30k20 50 100 500 1k 2k 5k 10k17.5925k17.05
H z
dx=-17.575 kHz dy=-0.501 dB 80KHz LPF 4ohm Load; 25VDC supply; 0dB = Po=1W (Vo = 2V) Cyan – Left Surround Green – Left Yellow – Subwoofer Blue – Center Magenta – Right Surround Red – Right
LXE1722 6-CHANNEL EVALUATION BOARD USER GUIDE
Microsemi Linfinity Microelectronics Division
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570
Page 14Copyright 2000 Rev. 1.3,2003-06-27
A U D I O M E A S U R E M E N T S ( C O N T I N U E D )
D . N O I S E F L O O R F F T
-150
+0
-140
-130
-120
-110
-100
-90
-80
-70
-60
-50
-40
-30
-20
-10
-100.345-100.239
dBr
20 20k50 100 200 500 1k 2k 5k 10k 18.9493k11.6588k
Hz
dx=-7.2904 kHz dy=+0.106 dB
10Hz ~ 22KHz =BPF, 4ohm Load; 25VDC supply; 0dB = Po=1W (Vo = 2V) Cyan – Left Surround Green – Left Yellow – Subwoofer Blue – Center Magenta – Right Surround Red – Right
LXE1722 6-CHANNEL EVALUATION BOARD USER GUIDE
Microsemi Linfinity Microelectronics Division
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570
Page 15Copyright 2000 Rev. 1.3,2003-06-27
PCB LAYOUT P C B L A Y O U T
Figure 5 – Components Layer (TOP) Layout
LXE1722 6-CHANNEL EVALUATION BOARD USER GUIDE
Microsemi Linfinity Microelectronics Division
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570
Page 16Copyright 2000 Rev. 1.3,2003-06-27
P C B L A Y O U T ( C O N T I N U E D )
Figure 6 – Solder Layer (BOTTOM) Layout
LXE1722 6-CHANNEL EVALUATION BOARD USER GUIDE
Microsemi Linfinity Microelectronics Division
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570
Page 17Copyright 2000 Rev. 1.3,2003-06-27
P C B L A Y O U T ( C O N T I N U E D )
Figure 7 – Components Placement (Silkscreen) Layout