TDA7501 Datasheet, PDF (1/18 Pages) STMicroelectronics – LINE-DRIVER FOR DIGITAL CARRADIO SIGNAL PROCESSOR

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TDA7501
LINE-DRIVER FOR DIGITAL CARRADIO
SIGNAL PROCESSOR
INPUTS:
- QUASI DIFFERENTIAL STEREO INPUT
FOR CD
- DIFFERENTIAL STEREO INPUTS FOR
PHONE, NAVIGATION, FM, AM
- SINGLE-ENDED INPUT FOR CASSETTE
- FOUR INDEPENDENT INPUT MULTIPLEXER
AND GAIN STAGES
- ENVELOPE-DETECTOR FOR
AM-NOISEBLANKING
- MIXING OF PHONE AND NAVIGATION
- DC-CONNECTION TO DSP
- DUAL MPX INPUTS
OUTPUTS:
- 6 OUTPUT CHANNELS WITH INDEPENDENT
VOLUME CONTROL
- 4 MAIN OUTPUT CHANNELS WITHADDITIONAL
INPUT SELECTOR FOR PHONE AND/OR
NAVIGATIONOR CD
- OUTPUTS FOR UP TO 4V rms
- AC-CONNECTION FROM DSP
DIGITAL CONTROL:
- SPI-BUS OR I²C BUS INTERFACE
(SELECTABLE)
- DIRECT MUTE FOR THE OUTPUT STAGES
AND/OR HIGH IMPEDANCE MPX MUTE
BLOCK DIAGRAM
PRODUCT PREVIEW
TQFP44
DESCRIPTION
The Linedriver handles all analog input- and out-
put-signals for the Digital Carradio Signal Proces-
sor TDA7501. The device contains four inde-
pendent input multiplexers to select the sources
for the DSP’s four AD-converters. Four additional
gain stages allow an adaptation to run the ADCs
in best S/N condition.
The six outputs have independent volume stages
with a large dynamic range. Using a 12V-supply
the outputs are able to drive up to 4Vrms .
April 1999
This is preliminary information on a new product foreseen to be developed. Details are subject to change without notice.
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