Samsung SCH-211 Service Manual page 24

ANTENNA
PA_ON
SYNTH_LOCK
RF
TRK_LO_ADJ
UNIT
TX_AGC_ADJ
RX_AGC_ADJ
IDLE/
SLEEP/
FM/
C_RX_IDATA0~3
C_RX_QDATA0~3
CHIPX8
Q5312
I_OFFSET, Q_OFFSET
CDMA
TXCLK, TXCLK/
BASEBAND
TX_IQDATA0~7
ANALOG 2
(BBA2)
FM_RX_IDATA
FM_RX_QDATA
FM_RX_STB
FM_RX_CLK
TXCO/4
ADC_ENABLE
ADC_DATA
ADC_CLK
Samsung Electronics-Contents may change without notice.
MICROPROCESSOR
RF
INTERFACE
FIFOED SERIAL
MSM2300
DATA PORT
MODE
CONTROL
SUPPORT
GENERAL
PURPOSE
MSM 1. 0 CORE
INTERFACE
(CDMA
PROCESSING)
CDMA
MODE
VOCODER
FM
MODE
DFM
PROCESSING
GENERAL
PURPOSE
ADC
SUPPORT
Figure 6-1 Baseband Block Diagram
XTAL
RESIN/
RESOUT
LWR/
80186
HWR/
RD/
CORE
DT_R/
PCS6/
RAM_CS/
ROM_CS/
EEPROM_CS/
AD0~AD15
A0~A19
DP_TX_DATA
DP_RX_DATA
KEYSENSE0~4
RINGER
PCM_CLK
PCM_SYNC
CORE
PCM_DIN
PCM_DOUT
Circuit Description
EXTERNAL
RAM, ROM,
EEPROM,
DISPLAY &
OTHER
PERIPHERALS
KEYPAD
RINGER
CODEC
SPK
AMP
MIC
5-3