STB4395 Datasheet, PDF (1/16 Pages) STMicroelectronics – CT2 RECEIVER/TRANSMITTER

STB4395
CT2 RECEIVER/TRANSMITTER
. FULLY INTEGRATED DOUBLE SUPERHETE-
RODYNE RECEIVER
. _{OPERATION FROM 800MHz TO 1000MHz}
. _{RECEIVER OUTPUT AS BITSTREAM}
. _{FULLY INTEGRATED TRANSMITTER}
. _{TRANSMITTER INPUT I/Q/REFIQ}
OR I/I, Q/Q
. _{INTEGRATED POWER AMPLIFIER}
. _{CT2 PA SWITCH-ON PROFILE INTEGRATED}
. _{VCO’s INTEGRATED}
. _{SYNTHESIZERS INTEGRATED}
. _{CHANNEL SELECT LOGIC ON CHIP}
. _{INTEGRATED VOLTAGE REGULATION}
. _{SUPPLY VOLTAGES FROM 3.0V TO 5.5V}
ADVANCE DATA
DESCRIPTION
The STB4395(A) is a fully integrated receiver-
transmitter designed for CT2 applications, and in-
corporates all the VCO’s, synthesizers, PLLs, and
channel select logic, to make a fully functional
”single chip” radio.
The receiver is of the double superhet architecture
and operates from an aerial input (via a SAW filter)
to bitstream output to CT2 format, whilst the trans-
mitter operates from I/Q inputs to +13dBm at the
final frequency. A single (external) frequency ref-
erence is all that is required to give full coverage
over the range of 800 to 1000MHz.The on-off slope
of the Transmit PAis governed internally to give the
required switch-on ramp, whilst the output can be
swiched from low to high power by means of an
external digital control signal.
The channelselect is controlled from a digital serial
input, and allows continuous channel control from
800 to 1000MHz.
The STB4395 exists in two versions:
the STB4395, which has I/I, Q/Q transmit data
input/outputs, is designed to operate with the
SGS-THOMSON baseband companion part, the
ST5095. The STB4395A has a 3 wire I/Q interface
and is compatible with commercially available I/Q
transmit data baseband IC’s.
TQFP64
(Plastic Package)
ORDER CODE : STB4395 or STB4395A
April 1996
This is advance information on a new product now in development or undergoing evaluation. Details are subject to change without no tice.
1/16