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3. BB Technical Description
3.6 Digital Baseband(DBB/MSM6275)
3.6.1 General Description
A. Features(MSM6275)
• Support for multimode operation - WCDMA(UMTS),GSM/GPRS,EDGE
• The ARM926EJ-S microprocessor can operate at up to 225 MHz with variable rate, software
controlled clocks to provide greater standby time.
• Supports low-power, low-frequency crystal to enable TCXO shutoff
• Integrated USIM Controller for direct interface to USIM card
• Software-controlled power management feature
• Integrated Bluetooth 1.2 baseband processor for wireless connectivity to peripherals
• Direct interface to digital camera module with video front end image processing
• Vocoder support (AMR,FR,EFR,HR)
• Advanced 409-ball CSP packaging
• WCDMA Features
- supports release 99 June 2004 of the W-CDMA FDD standard
- PS data rates supporting 384kbps DL / 384kbps UL
- CS data rates supporting 64kbps DL / 64kbps UL
- AMR (all rates)
• GSM Features
- Voice features (FR,EFR,AMR,HR)
- Circuit-switched data features(9.6K,14.4K,Fax)
• GPRS Features
- Class B operation
- Multi-slot class 10 data services
- CS schemes CS1,CS2,CS3,CS4
• EDGE Features
- EDGE E2 power class for 8PSK
- Class B, multi-slot class 10
- Downlink/Uplink coding schemes (CS1-4, MCS1-9)
• Operation and Services
- LCD & Camera Interface
- USIM Interface
- Dual Memory Buses(EBI1-SDRAM & EBI2-NAND Flash)
- External Memory Interface (Micro SD)
- RTC
• Data Communication
- BlueTooth
- Slave USB
3. TECHNICAL BRIEF
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Troubleshooting
