Service Manuals, User Guides, Schematic Diagrams or docs for : motorola Mobile Phone W370_W375_sm W375_Block_Diagram_Rev_1.2
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XTAL
26MHz
U802
AFC SI4210 GSM_IN
R815 Match U803
LBTXOUT SKY77506
Att 3dB Antenna
RF_CLK (26MHz) DCXO
R816 A800
VCO+FREQUENCY SYNTHESIZER HBTXOUT BiCMOS
Att 3dB Power Match/
PA Filter
Amplifier
J800
Controller
APC
PA_EN Duplexer
SW_LO_TX
Antenna
IN BS Switch
SW_HI_TX Match/
IP Decoder PA Filter
ANALOG INTERFACE
DET
QP
PCS_IN
90/0 Match
QN
LNA850
LOW-IF BF800
V_IO
LNA900 900
PGA Q GSMRX
PGA
DIGITALFIL
ADC BF801
FILTER
LNA1800
DCSRX 1800
PGA I PGA
ADC LNA1900 BF802
PCSRX 1900
(LDO Supply)
From U801
PDN
RF2V8
TSPEN2
TSPCLK
TSPDO
APC
RF_CLK (26MHz)
2.85V V_SIM
2.8V
1.5V V_RTC
2.8V V_RAM
2.8VV_FLASH
1.5V V_DBB
VBAT
V_IO
XTAL
CLK13M 32.768KHz
U101 SYREN U100 G2+ CLK32K
Voltage Regulation SLICER DIV-2 13MHz TSP RTC
(VREG)
VBACKUP
VBACKUP Baseband
BFSR CK32KHz
C108
Baseband intercommunication
Serial BDR BaseBand PLL & CLKM WTDOG INTH ULPD
Port BFSX Interface
For RTC Backup (BSP) BDX
APC APC SPI GSM
AFC AFC Clock CLK13M TPU
Internal Time
DAC ADAC Bus Gene
UDX MCUDI
MCU GEA
Controller UDR MCUDO ARM PDN
TSPDO Serial MCU TOP-CELL
Vibrator Timing (IBIC) UEN MCUEN0 Serial
Port Boot ROM PA_EN
From G2+ TSPEN0 Serial Port ARM-SYREN Port
(USP) intercommunication DieID SW_LO_TX
(TSP) MEMIF
Test External B RHEA bus TSP BS
Access Memories R
TXQN Port Debug Unit SW_HI_TX
I
TXQP (TAP) Memory D TIMER1
Voice Band TSPEN0 To SYREN
Protect G
TXIP VCK intercommunication VCLKRX Voice Unit
Voiceband E
TXIN Baseband VFS VFSRX Band ARM7 TIMER2
Serial Port VDR VDR Interfac LCD_nCS
RXQN Codec
(VSP) VDX VDX e SCLK
(BBC) From/to LCD
RXQP Write ARMIO
MIC 5Mbit LCD IF SDO
RXIP SRAM Buffer SDI
I2S Audio AUDR CDO DMA(6)
RXIN
Serial AUCK CSCLK I2S
EARP Port AUFS CSYNC 0.5Mbit
Speaker EARN SRAM USB_EN
To Sub-board
CLK32K USB_P
48Kbytes From/to USB
MICIP USB
ROM/ connectror
MICIN Voltage nRESPWRON (Chip Reset) RTC/ Boot
8K API B
R
USB_N Keypad
MICBIAS Reference ONnOFF (keypad ON indication from keypad interface processor) RESET
IT-WAKEUP (Wakeup interrupt from RTC) I
Audio Power CRYPTO cDSP SCL
SPKN RPWON (from TP105 on Test point) D I2C From/to
Codec Control Processors S28C128 SDA
U301 PWON (From keypad) G FM radio
HS_EN1 (AUC) (VRPC)
Audio SIM-IO3 64b Key E
HS_EN2 From/to SPKP
AUDAMP_SD AMP. SIM-CLK3 SIM ROW0 - ROW4
HS_DETECT G2+ 128b Key DSP subchip Keypad Port
(from G2+) SIM-RST3 INTH COL0 - COL4
AUXI
To Syren
6
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