what is a smartphone-r1
TRANSCRIPT
What is a Smart-phone?
Mokwon UniversityYong Heui CHO( 조용희 )
Definition
Smartphone Mobile phone + computer + sensors +
wireless I/O Mobile OS: speed vs. battery life
2 ←inbritech.com
Computer of Tomorrow
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Devoid of CPU and memory
Smartphone HW: AP
Application Platform Chip AP: Application Processor Flash memory Mobile Dynamic RAM PMU: Power Management Unit Audio Codec Bluetooth WiFi
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Connectivity Platform Chip CPU: Central Processing Unit DSP: Digital Signal Processing
RF baseband processing Voice processing
PA: Power Amplifier Tx-Rx switch DAC + ADC
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Smartphone HW: CP
UMTS/HSDPA/HSUPA 850, 900, 1900, 2100 MHz
GSM/EDGE 850, 900, 1800, 1900 MHz
CDMA EV-DO Rev. A 800, 1900 MHz
World Phone Capability
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- UMTS: Universal Mobile Telecommunications System- HSDPA: High Speed Downlink Packet Access- GSM: Global System for Mobile communication- EDGE: Enhanced Data rates for GSM Evolution- EV-DO: Evolution-Data Optimized
Openmoko Project
Open source mobile phone project
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UART: Universal Asynchronous Rx/Tx
SDIO: Secure Digital I/O
GPIO: General Purpose I/O
I2C: Inter-Integrated Circuit
Apple iPhone 4S
8 ←techrepublic.com
Apple released iPhone 4S in Oct. 2011. A5: powerful and faster than A4 Twin antenna: diversity
Breakdown of iPhone 4S
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EMI Shield←ifixit.com
Without battery
Mother-Board
Li-ion Battery
3.7 [V]: used for bias of active de-vices (amplifiers, mixers, …) This voltage should be small to con-
sume smaller power (P = I x V) 5.3 [Whr]: unit for energy (W x hour)
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A5 Processor 1 GHz, 500 MB RAM Designed by Apple (licensed from
ARM) and manufactured by Samsung
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Chip R,L,C
Instruction Data
NEON: Multimedia
Power Amplifier
PA: transmitting the RF power into air Heat sink is needed. Look at the metal
part below.
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Avaga PA: 2G and 3G
Skyworks PA: GSM, EDGE, WCDMA
Mother-Board
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Qualcomm Multi-Band RF Transceiver
TriQuint SAW (Surface Acoustic Wave) BPF
TriQuint WCDMA/HSUPA PA-Duplexer
Samsung Galaxy S III
14 ←techrepublic.com
Samsung released Galaxy S III in May 2012. Quad-core A9 processor
Breakdown of Galaxy S III
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Li-ion Battery
3.8 [V]: used for bias of active devices (amplifiers, mixers, …) This voltage should be small to consume
smaller power (P = I x V) 2,100 [mAh]: unit for energy (W x hour)
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A9 Processor 1.4 GHz, 2 GB RAM Designed by Samsung (licensed
from ARM) and manufactured by Samsung
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NEON: Multimedia
Jack, Speaker, GPS An-tenna
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2 GB Mobile DRAM
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PMIC
Qualcomm Power Management IC
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RF Transceiver
Qualcomm multiband/mode RF transceiver
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Quad-Band PA
TriQuint GSM/GPRS/EDGE power amplifier
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LTE PA