LMX3160 Datasheet, PDF (1/16 Pages) National Semiconductor (TI) – Single Chip Radio Transceiver

ADVANCE INFORMATION
August 1995
LMX3160 Single Chip Radio Transceiver
General Description
The Single Chip Radio Transceiver is a monolithic integrat-
ed radio transceiver optimized for use in the Digital Europe-
an Cordless Telecommunications (DECT) system as well as
other mobile telephony and wireless communications appli-
cations It is fabricated using National’s ABiC V BiCMOS
process (f_T e 18 GHz)
The Single Chip Radio Transceiver contains both transmit
and receive functions The transmitter includes a 1 1 GHz
phase locked loop (PLL) a frequency doubler and a high
frequency buffer The receiver consists of a 2 0 GHz low
noise mixer an intermediate frequency (IF) amplifier a high
gain limiting amplifier a frequency discriminator a received
signal strength indicator (RSSI) and an analog DC compen-
sation loop The PLL doubler and buffers can be used to
implement open loop modulation The circuit features an on-
board voltage regulator to allow wide supply voltages In
addition the on board voltage regulator has two outputs for
regulated discrete stages in the Rx and Tx chain
The IF amplifier high gain limiting amplifier and discrimina-
tor operate in the 40 to 150 MHz frequency range and the
total IF gain is 85 dB The use of the limiter and the discrimi-
nator provides a low cost high performance demodulator
for communications systems The RSSI output can be used
for channel quality monitoring
The Single Chip Radio Transceiver is available in a 48-pin
7mm X 7mm X 1 4mm PQFP surface mount plastic pack-
age
Features
Y _{Single chip solution for DECT RF transceiver}
Y _{RF sensitivity to} b_{93 dBm RSSI sensitivity to}
b100 dBm
Y _{Two regulated voltage outputs for discrete amplifier}
V_CC
Y _{High gain (85 dB) intermediate frequency strip}
Y _{Allows unregulated 3 0V – 5 5V supply voltage range}
Y _{Power down mode for increased current savings}
Y _{System noise figure 5 4 dB (typ)}
Applications
Y _{Digital European Cordless Telecommunications (DECT)}
Y _{Portable wireless communications (PCS PCN cordless)}
Y _{Wireless local area networks (WLANs)}
Y _{Other wireless communications systems}
TL W 12493 – 1
This data sheet contains the design specifications for product development Specifications may change in any
manner without notice
TRI-STATE is a registered trademark of National Semiconductor Corporation
FastLockTM is a trademark of National Semiconductor Corporation
C1995 National Semiconductor Corporation TL W 12493
RRD-B30M115 Printed in U S A