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3.5.5. Baseband Codec (BBC)
Baseband codec is composed of baseband uplink path (BUL) and baseband downlink path (BDL).
BUL makes GMSK (Gaussian Minimum Shift Keying) modulated signal which has In-phase (I)
component and quadrature (Q) component with burst data from DBB. This modulated signal is
transmitted through RF section via air. BDL process is opposite procedure of BUL. Namely, it performs
GMSK demodulation with input analog I&Q signal from RF section, and then transmit it to DSP of DBB
chip with 270.833kHz data rate through BSP.
3.5.6. Voltage Regulation (VREG)
There are 7 LDO (Low Drop Output) regulators in ABB chip. The output of these 7 LDOs are as
following table. (Figure14) shows the power supply related blocks of DBB/ABB and their interfaces in
MG210.
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Figure 13. Baseband Codec Block Diagram
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Содержание MG210
Страница 1: ...Date May 2006 Issue 1 0 Service Manual MG210 Service Manual Model MG210 Z 3 X B O X C O M ...
Страница 3: ... 2 Z 3 X B O X C O M ...
Страница 5: ...Z 3 X B O X C O M ...
Страница 32: ...3 H W Circuit Description 31 Figure 14 Power Supply Scheme Z 3 X B O X C O M ...
Страница 45: ...4 2 KEYPAD Components Placement 4 TROUBLE SHOOTING 44 U301 MIC200 Z 3 X B O X C O M ...
Страница 46: ...4 TROUBLE SHOOTING 45 4 3 FPCB Components Placement 4 4 Baseband Components LD1 BAT1 CN2 CN3 Z 3 X B O X C O M ...
Страница 87: ...4 TROUBLE SHOOTING 86 Waveform PA_ON VRAMP Z 3 X B O X C O M ...
Страница 91: ...5 DOWNLOAD 90 5 2 Download Procedure 5 2 1 Computer Program file MultiGSM exe Click Z 3 X B O X C O M ...
Страница 93: ...5 DOWNLOAD 92 5 2 3 Configuration Setting C GSMULTI Model MG210 dll Z 3 X B O X C O M ...
Страница 94: ...5 DOWNLOAD 93 5 2 4 Press Start Button MG210 Z 3 X B O X C O M ...
Страница 95: ...5 DOWNLOAD 94 5 2 5 After Start Button Which Stand by condition MG210 Z 3 X B O X C O M ...
Страница 96: ...5 DOWNLOAD 95 5 2 6 SW downloading Condition MG210 Z 3 X B O X C O M ...
Страница 97: ...5 DOWNLOAD 96 5 2 7 SW downloading END Condition MG210 Z 3 X B O X C O M ...
Страница 100: ...6 SERVICE AND CALIBRATION 99 4 Click on CALIBRATION START button MG210 MG210 Z 3 X B O X C O M ...
Страница 101: ... 100 Z 3 X B O X C O M ...
Страница 106: ... 105 8 pcb layout Z 3 X B O X C O M ...
Страница 107: ... 106 8 pcb layout Z 3 X B O X C O M ...
Страница 111: ... 110 Z 3 X B O X C O M ...
Страница 126: ...Note Z 3 X B O X C O M ...
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