器件名称: W3000
功能描述: W3000 PLL Dual-Band Frequency Synthesizer
文件大小: 327.37KB 共28页
简 介:Advance Data Sheet December 1999
W3000 PLL Dual-Band Frequency Synthesizer
Features
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Applications
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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
GSM900/1800/1900 North American IS-136/137 Personal Digital Cellular (Japan RCR-27) Personal Handy Phone (Japan RCR-28) CDMA (IS-95)
LD REF_IN R 11-BIT COUNTER TCXO IPD SETTING PD POLARITY IREF M 11-BIT COUNTER PHASE DETECTOR
VDDC
VCP
VCO BAND A
VCO BAND B PRESCALER ÷ 64/65 A 7-BIT COUNTER
MAIN_IN
IREF HIGH-PRECISION CURRENT REFERENCE RREF VDDC OFF CHIP
IPD SETTING PD POLARITY BAND
CONTROL LOGIC
24-BIT SERIAL SHIFT REGISTER
LAT DAT CLK
Figure 1. Block Diagram with Pinout
W3000 PLL Dual-Band Frequency Synthesizer
Advance Data Sheet December 1999
Table of Contents
Features...............................................................................................................................................................1 Applications .........................................................................................................................................................1 Description.........................................................................................................................……
