W3030 Ver la hoja de datos (PDF) - Agere -> LSI Corporation

Número de pieza

componentes Descripción

Fabricante

W3030

3 V Dual-Mode IF Cellular Receiver

Agere -> LSI Corporation 

Data Sheet

April 1999

W3030 3 V Dual-Mode IF Cellular Receiver

Features

n Proven double conversion architecture:

 First IF capability: 10 MHz to over 1000

MHz

 Second IF capability: 0.2 MHz to 2.0 MHz

n 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

n Accurate, onboard local oscillator phase splitter

for digital quadrature demodulator

n Four enable/powerdown modes, selectable from

two digital control pins, allow operation with

minimal supply current

n Low supply current

n Analog received signal strength indicator (RSSI)

available

n Analog AGC for digital-mode IF amplifiers

n Over 100 dB combined voltage gain

Applications

n IS-136 (North American dual-mode) cellular

radio portable and mobile terminals

n Cellular radio base stations

n Digital satellite communications

n Multisymbol signaling receivers

VCC

GND

ENBA

ENBD

VCM

AGC

LOGIC AND

BIAS

CONTROL

IF INPUT

LO

DIGITAL SECTION

VARIABLE GAIN

ANALOG SECTION

I

÷4

CLK

Q

AUDIO

RSSI

Figure 1. General Block Diagram

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