W3030
| Model | W3030 |
| Description | W3030 3 V Dual-Mode IF Cellular Receiver |
| PDF file | Total 22 pages (File size: 426K) |
| Chip Manufacturer | AGERE |
Data Sheet
April 1999
W3030 3 V Dual-Mode IF Cellular Receiver
Features
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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
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Applications
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IS-136 (North American dual-mode) cellular
radio portable and mobile terminals
Cellular radio base stations
Digital satellite communications
Multisymbol signaling receivers
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DIGITAL SECTION
V
CC
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
