What is a Smart-phone?

Mokwon UniversityYong Heui CHO( 조용희 )

yhcho@mu.ac.kr

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