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STB4395A Datasheet

  • STB4395A

  • CT2 RECEIVER/TRANSMITTER

  • 155.57KB

  • 16頁

  • STMICROELECTRONICS   STMICROELECTRONICS

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STB4395
CT2 RECEIVER/TRANSMITTER
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ADVANCE DATA
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鈥檚 INTEGRATED
SYNTHESIZERS INTEGRATED
CHANNEL SELECT LOGIC ON CHIP
INTEGRATED VOLTAGE REGULATION
SUPPLY VOLTAGES FROM 3.0V TO 5.5V
DESCRIPTION
The STB4395(A) is a fully integrated receiver-
transmitter designed for CT2 applications, and in-
corporates all the VCO鈥檚, synthesizers, PLLs, and
channel select logic, to make a fully functional
鈥漵ingle chip鈥?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.
T h e S TB 4 3 9 5 e x is t s in t wo v ersio n s:
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鈥檚.
April 1996
TQFP64
(Plastic Package)
ORDER CODE :
STB4395 or STB4395A
1/16
This is advance information on a new product now in development or undergoing evaluation. Details are subject to change without no tice.

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