TDA7541B datasheet(52/77 Pages) STMICROELECTRONICS

Part #	TDA7541B

Description	AM/FM car radio tuner IC with stereo decoder and intelligent selectivity system

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Manufacturer	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

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52 / 77 page

Software specification

TDA7541B

52/77

Doc ID 16048 Rev 1

Table 24.

Addr 7 Quality AC (FM 50h)

MSB

LSB

Function

ISSBW

ISS filter fixed band width 120 kHz

ISS filter fixed band width 80 kHz

BWDEF

Disable bit ISSBW for ISS filter band width control

Enable bit ISSBW for ISS filter band width control

ACF

AC highpass frequency 100 kHz

AC bandpass frequency 100 kHz

ACTH<4:3>

AC detector threshold 0.35 V

AC detector threshold 0.45 V

AC detector threshold 0.55 V

AC detector threshold 0.65 V

TISS<7:5>

discharge current 1 µA, charge current mid 74 µA, narrow 124 µA

discharge current 3 µA, charge current mid 72 µA, narrow 122 µA

discharge current 5 µA, charge current mid 70 µA, narrow 120 µA

discharge current 7 µA, charge current mid 68 µA, narrow 118 µA

discharge current 15 µA, charge current mid 60 µA, narrow 110 µA

TDA7541B Datasheet(PDF) 52 Page - STMicroelectronics