3. TECHNICAL BRIEF
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3. BB Technical Description
3.6 Digital Baseband(DBB/MSM6250A)
3.6.1 General Description
A. Features(MSM6250A)
• The ARM926EJ-S microprocessor can operate at up to 180 MHz with variable rate, software
controlled clocks to provide greater standby time.
• Integrated PLL to provide additional on-chip clock frequencies
• Supports low-power, low-frequency crystal to enable TCXO shutoff
• Integrated USIM Controller for direct interface to USIM card
• Software-controlled power management feature
• Automatic access conversion of 32-bit data accesses to 16-bit devices
• Advanced 409-ball CSP packaging
• WCDMA Access
- Maximum of eight simultaneous transport channels
- Four coded composite transport channels (CCTrCH)
- PS data rates supporting 384kbps DL / 64kbps UL
• GSM/GPRS Access
- GSM/GPRS network signaling (from Layer 1 to 3)
- GSM AMR,EFR,FR
• Operation and Services
- SIM Interfaces
- General Purpose I/O (GPIO) Interface
- Dual Memory Buses(EBI1 & EBI2)
- JTAG
- RTC
• Data Communication
- UARTs (ACB, EDB (RS232))
- Slave USB
Summary of Contents for U310
Page 3: ... 4 ...
Page 20: ...3 TECHNICAL BRIEF 21 ...
Page 33: ...3 TECHNICAL BRIEF 34 Figure 3 5 10 1 Bluetooth system architecture ...
Page 47: ...3 TECHNICAL BRIEF 48 Figure PM6650 2M Functional Block Diagram ...
Page 72: ...4 TROUBLE SHOOTING 73 4 2 SIGNAL PATH WCDMA Tx PATH WCDMA Rx PATH ...
Page 76: ...4 TROUBLE SHOOTING 77 ...
Page 90: ...4 TROUBLE SHOOTING 91 ...
Page 110: ...4 TROUBLE SHOOTING 111 CN501 C537 C538 MSM6250A ...
Page 116: ...4 TROUBLE SHOOTING 117 C216 C217 for MIC serial capacitor MSM6250A ...
Page 119: ...4 TROUBLE SHOOTING 120 Q400 Q401 Q402 VBATT GND ...
Page 149: ... 150 8 pcb layout ...
Page 150: ... 151 8 pcb layout ...
Page 151: ... 152 8 pcb layout ...
Page 152: ... 153 8 pcb layout ...
Page 153: ... 154 ...
Page 160: ...9 Calibration RF Auto Test Program 161 9 3 1 Example for Calibration Click START U310 ...
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Page 187: ...Note ...
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