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(2) BB Transmit Section
This section generates in-phase and quadrature BB modulated GMSK signals (BT = 0.3) in
accordance with GSM 05.05 Phase 2 specifications.
The transmit channel consists of a digital GMSK modulator, a matched pair of 10-bit DACs
and a matched pair of reconstruction filter.
There are TXIP, TXIN, TXQP, TXQN, and RAMPDAC.
(3) BB Receiver Section
This section consists of two identical ADC channels that process baseband in-phase (I) and
quadrature (Q) input signals.
Each channel consists of a coarse switched capacitor input filter, followed by a high-order
sigma-delta modulator and a lowpass digital filter.
There are RXIP, RXIN, RXQP, and RXQN.
(4) Auxiliary Section
This section contains two auxiliary DACs (AFC DAC, IDAC) for system control.
This section also contains AUX ADC and Voltage Reference
AUX ADC : 6 channel 10 bits
AFC DAC : 13 bits
IDAC
: 10 bits
(5) Voiceband Section
Receive audio signal from MIC. The phones use differential configuration.
Send audio signal to Receiver. The phones use differential configuration.
It interconnects external devices such as main microphone, main receiver, ear-phone and
Hands free kit through the VINNORP, VINNORN, VOUTNORP, VOUTNORN, VINAUXP,
VINAUXN, VOUTAUXP, and VOUTAUXN
VINNORP, VINNORN
: Main MIC positive/negative terminal.
VOUTNORP, VOUTNORN : Main Receiver positive/negative terminal.
VINAUXP, VINAUXN
: Hands free kit microphone positive/negative terminal.
VOUTAUXP, VOUTAUXON : Hands free kit speaker positive/negative terminal.
3. TECHNICAL BRIEF
Содержание C3100
Страница 1: ...Service Manual Model C3100 Service Manual C3100 P N MMBD0033001 Date June 2004 Issue 1 0 ...
Страница 51: ...Graph 4 15 EGSM TX 50 VCX VC2 VCX VC2 4 TROUBLE SHOOTING Graph 4 14 DCS TX ...
Страница 67: ...5 DISASSEMBLY INSTRUCTION Figure 5 1 Figure 5 2 66 5 DISASSEMBLY INSTRUCTION ...
Страница 68: ... 67 5 DISASSEMBLY INSTRUCTION Figure 5 3 Figure 5 4 ...
Страница 69: ... 68 Figure 5 5 5 DISASSEMBLY INSTRUCTION ...
Страница 70: ... 69 5 DISASSEMBLY INSTRUCTION Figure 5 6 Figure 5 7 1 3 2 4 1 2 3 ...
Страница 71: ... 70 Figure 5 8 Figure 5 9 5 DISASSEMBLY INSTRUCTION 4 2 3 1 2 1 ...
Страница 72: ... 71 5 DISASSEMBLY INSTRUCTION Figure 5 10 ...
Страница 83: ... 82 7 BLOCK DIAGRAM 7 BLOCK DIAGRAM Power supply ...
Страница 90: ... 89 9 PCB LAYOUT 9 PCB LAYOUT ...
Страница 91: ... 90 9 PCB LAYOUT ...
Страница 98: ... 97 11 3 HW Test Software for Standalone Test Setup 11 STAND ALONE TEST ...
Страница 100: ... 99 Tx Stand alone Test Setting 11 STAND ALONE TEST ...
Страница 102: ... 101 Rx Stand alone Test Setting 11 STAND ALONE TEST ...
Страница 104: ... 103 12 3 Equipment Setup Figure 12 1 Equipment Setup 12 AUTO CALIBRATION ...
Страница 107: ... 106 12 AUTO CALIBRATION ...
Страница 108: ... 107 13 EXPLODED VIEW REPLACEMENT PART LIST 13 EXPLODED VIEW REPLACEMENT PART LIST 13 1 Exploded View ...
Страница 109: ... 108 13 EXPLODED VIEW REPLACEMENT PART LIST ...