A smartphone is a cell-phone with powerful CPU and multimedia capability. In this presentation, we can understand of the smartphone hardware in terms of the Apple's iPhone 4S.
The Codex of Business Writing Software for Real-World Solutions 2.pptx
Understanding of Smartphone
1. Mokwon University
Yong Heui CHO(조용희)
yhcho@mu.ac.kr
Understanding of
Smartphone
2. Apple iPhone 4S
Apple released iPhone 4S in Oct. 2011.
A5: powerful and faster than A4
Twin antenna: diversity
2 ←techrepublic.com
3. World Phone Capability
UMTS/HSDPA/HSUPA
850, 900, 1900, 2100 MHz
GSM/EDGE
850, 900, 1800, 1900 MHz
CDMA EV-DO Rev. A
800, 1900 MHz
-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
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5. Li-ion Battery
3.7 [V]: used for bias of active
devices (amplifiers, mixers, …)
This voltage should be small to
consume smaller power (P = I x V)
5.3 [Whr]: unit for energy (W x hour)
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6. A5 Processor
1 GHz, 500 MB RAM
Designed by Apple (licensed from
ARM) and manufactured by Samsung
NEON: Multimedia
Instruction Data
Chip R,L,C
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7. Power Amplifier
PA: transmitting the RF power into air
Heat sink is needed. Look at the metal
part below.
Skyworks PA: GSM, EDGE, WCDMA
Avaga PA: 2G and 3G
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