W3000 Просмотр технического описания (PDF) - Agere -> LSI Corporation

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W3000

PLL Dual-Band Frequency Synthesizer

Agere -> LSI Corporation 

Advance Data Sheet

December 1999

W3000 PLL Dual-Band Frequency Synthesizer

Features

+ 2.2 GHz operational

+ Dual-band optimized

+ Low supply current (5.1 mA)

+ Surface-mount 14-pin TSSOP package

+ Scaled PD gain for dual-band operation

+ Programmable phase-detector polarity

+ Synchronous or forced counter update loading

+ Powerdown mode via external pin or serial bus

+ Low-load capacitance on reference input buffer

Applications

+ GSM900/1800/1900

+ North American IS-136/137

+ Personal Digital Cellular (Japan RCR-27)

+ Personal Handy Phone (Japan RCR-28)

+ CDMA (IS-95)

REF_IN

TCXO

VDDC

LD

R

11-BIT COUNTER

PHASE

VCP

DETECTOR

VCO BAND A

IPD SETTING

PD POLARITY

IREF

M

11-BIT COUNTER

PRESCALER

÷64/65

IREF

A

7-BIT COUNTER

VCO BAND B

MAIN_IN

HIGH-PRECISION

CURRENT

REFERENCE

RREF

IPD SETTING

PD POLARITY

BAND

CONTROL

LOGIC

24-BIT SERIAL

SHIFT REGISTER

LAT

DAT

CLK

OFF CHIP

VDDC

Figure 1. Block Diagram with Pinout

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