Understanding of Smartphone

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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.

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Understanding of Smartphone

  1. 1. Mokwon University Yong Heui CHO(조용희) yhcho@mu.ac.krUnderstanding of Smartphone
  2. 2. Apple iPhone 4S Apple released iPhone 4S in Oct. 2011. A5: powerful and faster than A4 Twin antenna: diversity 2 ←techrepublic.com
  3. 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 3
  4. 4. Breakdown of iPhone 4S Without battery EMI Shield ←ifixit.com Mother-Board 4
  5. 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) 5
  6. 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 6
  7. 7. Power Amplifier PA: transmitting the RF power into air Heat sink is needed. Look at the metal part below. Skyworks PA: GSM, EDGE, WCDMAAvaga PA: 2G and 3G 7
  8. 8. Mother-BoardQualcomm Multi-Band RF TransceiverTriQuint SAW (Surface Acoustic Wave) BPFTriQuint WCDMA/HSUPA PA-Duplexer 8

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