Motorola V200 Service Manual page 12

Circuit Description
Speaker
AUDFB
Digital_1.8V
V1A
Analog_1.8V
V1B
Memory_Vcc
V2
Logic_2.75v
V3
RX_2.75v
V5
TX_2.75v
V6
V9(VIBOUT)
A2OUT
PAH_B+ PAH_B+
PAL_B+ PAL_B+
32KHZ
MAINTEMP
MAINBATT
VIN9
VIN8
B+
4
3
2
1
BATT_GND
SW _B+_EN
Figure 2. V200 controller block diagram
8
IC U1200 via signals AUDIO_P and AUDIO_M. U1200 amplifies and routes the
received audio signal to the speakerphone or headset.
The alert tone originates in call processor IC U1100 and follows the same path as
the receive audio, except it is sent only to the speakerphone.
Display Driver Connector
V8(Led_Backlgt)
ON1b
XTAL1
32 KHz
XTAL2
32KHZ
RESETb
U1200
INTb
AUDIO/POWER
CONTROLLER
WDI
IC
AUDPIN
AUDMIN
A3IN
A3OUT
MIC2MIN
MIC2OUT
VMIC2
VMIC1
Int.
MIC1MIN
Mic.
MIC1OUT
MIC4OUT
MIC4REF
PAH_D_PHASE
V10REF
V10EN
USBOEb
USBVMOUT
USBVPOUT
USBRXD
USBVMIN
USBVPIN
USBP
USBM
USBPW R
MIC3OUT
MIC3MIN
ESD protection not shown
7 2 3
AUDIO_GND
Transmit
Audio from the internal speakerphone microphone or headset microphone is routed
through, and amplified by, audio/power controller IC U1200. From U1200, the
transmit audio is sent to call processor IC U1100 on the MIC1 and MICREF lines.
MIC1 and MICREF signals are digitized by the CODEC inside U1100, then
processed by the DSP CELP variable rate vocoder, and then processed further by
the modem (CSP), all also within the call processor IC U1100, to produce the
RAM
LCD_CS
LCDCS1
Ser_LCD_CLK
Ser_LCD_A0
Ser_LCD_MOSI
RESET_OUT_b
KEY_COL[:4]
KEY_ROW [0:5]
INT0 (FLIP_OPEN_B)
CKIL
RESET_IN_B
INT4_B
STO
AUDIOOUTP
AUDIOOUTM
INT1 (HEADSET_DET)
MIC1
MIC_REF
THERM1
RXATTEN
PAENABLE_LO
PA_ENABLE
USB_OE
RXDP
USB_VP
RTSP
USB_VMO
TXDP
GPIO8
GPIO6
6 5 4 9
CE Bus Connector J1000
BATT_GND
October 04, 2001
FLASH
GPIO0
GPIO1
GPIO2
GPIO3
RFCLK
RFDATA
SPICS3
GP109
RXCTRLB
RXIM
RXIP
RXQM
RXQP
DISC
U1100
GPIO7
CALL PROCESSOR
TXATTEN
IC
MCI1
RSSI
RFDETECT
OSCENB
AFC
CKIH
TXIP
TXIM
TXQP
TXQM
FM
AOCCNT
PA_BIAS
THERM0
INT0(SM_DET)
MISO
SPICS0
SPICS1
SRDA
STDA
SCKA
SC2A
CDMA V200
FEIC_G1
FEIC_G2
BAND
MODE
RFCLK
RFDATA
ZIF_ENB
LOCK_DETECT
RF_SLEEP
RXIM
RXIP
RXQM
RXQP
DISC
AFC_ANALOGSTEERING
ZIF_VCA
RSSI
REF_WARP
RF_DET
OSCEN_b
16.8Mhz
TXIP
TXIM
TXQP
TXQM
FM
ME_VCA
PA_BIAS
TEMP_SENSE
010993o
6881039B10