Analog Main Processor - LG G5300 Service Manual

3.8 Analog Main Processor

AD6521
AD6521
Dual-Mode Voiceband B aseband Code c
ITXP
I TRANSMIT
FILTER
ITXN
DAC
QTXP
Q TRANSMIT
FILTER
QTXN
DAC
10 bit
RAMPDAC
FILTER
RAMP DAC
BAS EBAND TRANSMIT SECTION
IRXP
I RECEIVE
FILTER
IRXN DAC
QRXP
Q RECEIVE
FILTER
QRXN DAC
BAS EBAND RECEIVE SECTION
13 bit
AFCDAC
AFC DAC
10 bit
IDACOUT
I DAC
IDACREF
AUXADC1
AUXILIARY SECTION
AUXADC2
AUXADC3
10 bit
AUXADC4 AUX DAC
VOLTAGE
REFOUT
REFERENCE
REFCAP
VOUTNORP
VOUTNORN
FILTER
VOUTAUXP PGA
VOUTAUXN
BUZZER
VINNORP
VINNORN
MIC
VINAUXP
PGA
VINAUXN
Figure 3-25. AD6521 function block diagram.
TCK TMS TDO TDI
JTAG Interface
for ICO
INTERP
GMSK MOD
32 x 10 bit
RAMP RAM
CONTROL
REGISTOR
SAMPLE
RATE
FILTER
ADC
CONV
VOICEBAND SECTION
SAMPLE
RATE
FILTER
DAC
CONV
- 35 -
3. TECHNICAL BRIEF
MCLK
MCLKEN
RESET
BSDI
BSIFS
BSAEBAND
TXON
SERIAL
PORT ATSM
RXON
ARSM
BSDO
BSOFS
ASDI
AUXILIARY
ASDO
SERIAL
PORT
ASFS
VSDI
VOICEBAND
VSDO
SERIAL
PORT
VSFS