器件名称: W3030
功能描述: W3030 3 V Dual-Mode IF Cellular Receiver
文件大小: 429.81KB 共22页
简 介:Data Sheet April 1999
W3030 3 V Dual-Mode IF Cellular Receiver
Features
n n n
Low supply current Analog received signal strength indicator (RSSI) available Analog AGC for digital-mode IF amplifiers Over 100 dB combined voltage gain
Proven double conversion architecture: First IF capability: 10 MHz to over 1000 MHz Second IF capability: 0.2 MHz to 2.0 MHz Dual second IF amplifiers and demodulators: Analog-mode limiting amplifier and FM quadrature detector Digital-mode linear AGC amplifiers with dual-mixer I & Q quadrature demodulator Accurate, onboard local oscillator phase splitter for digital quadrature demodulator Four enable/powerdown modes, selectable from two digital control pins, allow operation with minimal supply current
n n
n
Applications
n
n
IS-136 (North American dual-mode) cellular radio portable and mobile terminals Cellular radio base stations Digital satellite communications Multisymbol signaling receivers
n n n
n
DIGITAL SECTION VCC GND ENBA ENBD VCM AGC LOGIC AND BIAS CONTROL VARIABLE GAIN ÷4
I
CLK
Q
IF INPUT
ANALOG SECTION
AUDIO RSSI
LO
Figure 1. General Block Diagram
W3030 3 V Dual-Mode IF Cellular Receiver
Data Sheet April 1999
Table of Contents
Features...............................................................................................................................................................1 Applications ...........................................................................................................……
