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TDA7514

STMicroelectronics
Part Number TDA7514
Manufacturer STMicroelectronics
Description SINGLE-CHIP FM/AM TUNER
Published Jul 7, 2008
Detailed Description TDA7514 SINGLE-CHIP FM/AM TUNER WITH STEREO DECODER AND AUDIO PROCESSOR 1 ■ ■ ■ ■ FEATURES AM/FM WORLD TUNER FOR CAR-RA...
Datasheet PDF File TDA7514 PDF File

TDA7514
TDA7514

Overview
TDA7514 SINGLE-CHIP FM/AM TUNER WITH STEREO DECODER AND AUDIO PROCESSOR 1 ■ ■ ■ ■ FEATURES AM/FM WORLD TUNER FOR CAR-RADIO INTEGRATED IMAGE REJECTION FM MIXER INTEGRATED TUNING PLL VARIABLE-BANDWITH FM IF FILTER (ISS) FM STEREO Figure 1.
Package TQFP80 ■ FULLY INTEGRATED www.
DataSheet4U.
com Table 1.
Order Codes Part Number E-TDA7514 E-TDA7514TR E- prefix indicates lead free package DECODER ■ Package TQFP80 TQFP80 in Tape & Reel FULLY INTEGRATED FM/AM NOISE BLANKER HIGHLY INTEGRATED AUDIO PROCESSOR ■ 2 DESCRIPTION The TDA7514 is a device for car-radio applications that combines full RF front-end functions with advanced audio-processing capabilities.
As far as FM and AM functions are concerned, the TDA7514 features front-end processing, including the digital tuning PLL.
IF processing with demodulation and variable-bandwidth IF filtering (ISS), stop station and quality detection functions, FM stereo decoding by means of a fully integrated adjustment-free dedicated PLL and, finally, AM and FM noise blanking (AM noise blanking comprises one IF NB as well as an audio NB).
The FM stereo decoder and the noise blanking functions are realised entirely without external components.
The FM front-end circuit features an image-rejection mixer that allows the simplification of the external preselection filter, and a very low noise level that allows getting rid of the external preamplifier with no loss in sensitivity.
A 6 bit on- board ADC makes a digitised version of the Smeter available to the µP via I2Cbus.
The audio processor section comprises input selectors for one stereo single-ended source, one stereo quasi-differential source and a mono differential source.
Volume, loudness, tone (bass and treble), balance and fading controls are available with completely pop-free operation to drive four output channels.
An additional input independently mixable on each of the four outputs is provided for chime.
A soft mute function and an RDS mute function are included to hand...


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