Nokia 3205 服务手册

CC Technical Documentation

Troubleshooting - RF (Part 2)

RM-11

Issue 1 02/2004

©2004 Nokia Corporation     Confidential

Page 3

RF_BUS_CLK
RF_BUS_DATA
RF_BUS_EN1X

Phase

Detector

1286 - 1323

PCS

1038 - 1064

Cell

Reference

Divider

Charge

Pump

4 mA

640

384

PCS

Cell

13-Bit B
Counter

UHF VCO

UHF Synthesizer

Prescaler

32/33

5-Bit A

Counter

0 - 31

Splitter

Phase

Detector

53

PCS

53

Cell

Reference

Divider

Charge

Pump

2 mA

Prescaler

32/33

128

128

PCS

Cell

5-Bit A

Counter

9-Bit B

Counter

12

PCS

12

Cell

Tank

VCO Band

Control

RX VHF VCO

RX VHF Synthesizer

Phase

Detector

PCS

Cell

Reference

Divider

Charge

Pump

2 mA

Prescaler

32/33

PCS

Cell

5-Bit A

Counter

9-Bit B

Counter

PCS

Cell

Tank

VCO

Band

Control

TX VHF VCO

TX VHF Synthesizer

SSB

Mixers

RX

FRONT

END

UHF LO

SYNTH_LE

VCTCXO
19.2 MHz

AFC

UPP

UEM

4

260

360

384

640

20