CMX018 Datasheet, PDF (1/15 Pages) List of Unclassifed Manufacturers – UHF FM/FSK Receiver

CMX018
UHF FM/FSK Receiver
D/018/3 April 1999
Features
• Double Conversion Super-Heterodyne
Receiver and FM/FSK Demodulator
• LNA with Switched Gain
• High Performance UHF Down-Converter
Stage with Integrated VCO
• 2.7V Operation
• Zero-Power Mode (<10µA)
• 28-Pin SSOP Package
• Temperature Compensated RSSI
Advance Information
Applications
• High Performance Analogue/Digital
Radio Links (860-965MHz)
• General ISM 915MHz Band
• Analogue/Digital Cordless Phones
• Spread Spectrum Receivers
• Analogue FM Receivers
• Handheld Data Terminals
• So-Ho Wireless Data Links
GAINSEL
TANK
OSCOUT
OSCBA OSCEM
ENABLE
RSSI
BUFFERED
OSCILLATOR
OUTPUT
1st DOWN VCO
CONVERTER
LNAIN 50Ω
50Ω
LNA
50Ω
100Ω
100Ω
BANDGAP
& BIAS
CONTROL
2nd DOWN
CONVERTER
IF LIMITING
AMPLIFIER
430Ω
FM/FSK
DISCRIMINATOR
DETOUT
430Ω
LNADEC LNAOUT MIX1IN
MIX1OUT
MIX2IN
MIX2OUT LIMIN LIMDEC1 LIMDEC2
LIMOUT
QUADIN
1.1 Brief Description
The CMX018 is a single chip UHF FM/FSK double-conversion super-heterodyne receiver. It combines
a dual gain mode Low Noise Amplifier (LNA), two down-converters (including integrated oscillators),
limiting amplifier, RSSI, FM/FSK demodulator and zero-power mode control.
The CMX018 can be used in conjunction with the CMX017, an integrated FM/FSK modulator and
transmitter, to implement a complete UHF radio link.