Figure 3-25. AD6521 function block diagram.
3.7 Analog Main Processor
- 40 -
AD6521
AD6521
BSAEBAND
SERIAL
PORT
FILTER
Q TRANSMIT
DAC
I TRANSMIT
DAC
10 bit
RAMP DAC
JTAG Interface
INTERP
GMSK MOD
32 x 10 bit
RAMP RAM
FILTER
FILTER
I RECEIVE
DAC
Q RECEIVE
DAC
FILTER
FILTER
13 bit
AFC DAC
10 bit
I DAC
10 bit
AUX DAC
VOLTAGE
REFERENCE
AUXILIARY
SERIAL
PORT
CONTROL
REGISTOR
FILTER
PGA
MIC
ADC
DAC
PGA
VOICEBAND
SERIAL
PORT
SAMPLE
RATE
CONV
SAMPLE
RATE
CONV
FILTER
FILTER
ITXP
ITXN
QTXP
QTXN
RAMPDAC
IRXP
IRXN
QRXP
QRXN
AFCDAC
IDACOUT
IDACREF
AUXADC1
AUXADC2
AUXADC3
AUXADC4
REFOUT
REFCAP
VOUTNORP
VOUTNORN
VOUTAUXP
VOUTAUXN
BUZZER
VINNORP
VINNORN
VINAUXN
VINAUXP
VSDI
VSDO
VSFS
ASDI
ASDO
ASFS
BSDI
BSIFS
TXON
ATSM
RXON
BSDO
BSOFS
ARSM
MCLK
MCLKEN
RESET
TDI
TDO
TMS
TCK
BASEBAND TRANSMIT SECTION
BASEBAND RECEIVE SECTION
AUXILIARY SECTION
VOICEBAND SECTION
Dual-Mode Voiceband Baseband Codec
for ICO
3. TECHNICAL BRIEF
Summary of Contents for G3100
Page 32: ... 34 3 TECHNICAL BRIEF Figure 3 20 TX IQ Signal Figure 3 21 RX IQ Signal ...
Page 40: ... 42 Figure 3 26 1 Voice band circuit diagram Headset Hands free kit part 1 3 TECHNICAL BRIEF ...
Page 42: ... 44 Figure 3 27 AD6521 circuit diagram 3 TECHNICAL BRIEF ...
Page 73: ... 75 4 3 8 Receiver RF Level Figure 4 1 Test Points of Rx Level 4 TROUBLE SHOOTING ...
Page 74: ... 76 4 3 9 Transmitter RF Level Figure 4 2 Test Points of Tx Level 4 TROUBLE SHOOTING ...
Page 81: ... 83 The Receiver part Circuit Diagram C203 C207 C206 4 TROUBLE SHOOTING ...
Page 87: ... 89 R202 MIC201 R204 C204 C201 R208 R206 C208 Q203 4 TROUBLE SHOOTING ...
Page 93: ... 95 Test SIM Connector Check J301 4 TROUBLE SHOOTING ...
Page 97: ... 99 J201 R240 C234 L201 R241 4 TROUBLE SHOOTING U205 U203 U204 ...
Page 101: ... 103 CN302 U203 U204 4 TROUBLE SHOOTING ...
Page 102: ... 104 U205 4 TROUBLE SHOOTING ...
Page 117: ... 119 9 PCB LAYOUT 9 1 Rear Part ...
Page 118: ...9 2 Front Part 120 ...
Page 134: ... 137 13 EXPLODED VIEW REPLACEMENT PART LIST 13 1 Exploded View ...