TDA7703 Datasheet, PDF (1/32 Pages) STMicroelectronics – Automatic self alignment for image rejection

TDA7703
Highly integrated tuner for AM/FM car radio
Target specification
Features
■ Fully integrated VCO for world tuning
■ AM/FM mixers with high image rejection
■ Integrated AM-LNA and AM-PINDIODE
■ Automatic self alignment for image rejection
■ Digital IF signal processing, high performance
and drift-free
■ Integrated IF-filters with high selectivity, high
dynamic range and FM adaptive bandwidth
control
■ High performance stereodecoder with
noiseblanker
■ I²C bus controlled
■ Single 5 V supply
■ LQFP44 package
Description
The TDA7703 highly integrated tuner (HIT44) is
part of a family of tuners for carradio applications.
LQFP44
It contains mixers and IF amplifiers for AM and
FM, fully integrated VCO and PLL synthesizer,
IF-processing including adaptive bandwidth
control (FM), stereo decoder on a single chip.
The utilization of digital signal processing results
in numerous advantages against today's tuners:
– Very low number of external components
– Very small space occupation and easy
application
– Very high selectivity due to digital filters
– High flexibility by software control
– Automatic image rejection alignment.
Table 1.
Device summary
Order code
TDA7703
TDA7703TR
Package
LQFP44 (10x10x1.4mm)
LQFP44 (10x10x1.4mm)
Packing
Tray
Tape and reel
April 2009
Rev 1
This is preliminary information on a new product foreseen to be developed. Details are subject to change without notice.
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