Moto 3G GPS手机电路图

Sch_A1000_C_L3_IssA1000 - Front End Module (FEM)

PCB - 8488485N02 Iss. A

GSM RX SAW filters

Antenna Switch 1 2 3 4

Diplexing Networks Harmonic Filters

Motorola Confidential Proprietary

A1000 - ALGAE MB

PCB - 8488485N02 Iss. A

LNA
1800/1900 MHz LNA

AGC

Clock Generation

RX VCO 3476-3980

LNA
1800/1900 MHz LNA

AGC

Rx Synth Feedback /5

Synth Buffer

U500

LNA
800/900 MHz LNA

AGC

PMA

PMA

4

Mixer Pole

Mixer Pole

3300-3820 TX VCO

4

/2 AGC
4

LNA
800/900 MHz LNA

to AGC Stages
DCOC DAC (I) IFA DCOC DAC (Q)

/2

TX Output Buffer

4

DCOC_DAC_Q

AGC Linearizer
DCOC_DAC_I

IFA

/2
TX Output Buffer

AGC DAC

/2

6

2 pole

2 pole

4

4

6 bits
Vcc

6

Bits

XX

Test Mux

BB OUT

Motorola Confidential Proprietary

BB OUT

Vag

Control Tracking

SPI

4 bits

A1000 - PRIMSYN

PCB - 8488485N02 Iss.