TDA7541 datasheet(46/76 Pages) STMICROELECTRONICS

No de pièce	TDA7541

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

PDF	76 Pages

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Fabricant	STMICROELECTRONICS [STMicroelectronics]

Site Internet	http://www.st.com

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46 / 76 page

Software specification

TDA7541

46/76

IQ mixer phase adjust

PTH

Pilot detector threshold

QDC

Stereo decoder quality detector coefficient

QNG

Stereo decoder quality noise gain

Tuner PLL reference counter

RFAGC

FM/AM RF AGC threshold

RFK

FM RF keying AGC

ROC

Stereo decoder roll off compensation

SBC

Stereo blend control

SDM

Stereo decoder mute enable

SEEK

FM: FMON = 1, ISS time constant change / AM: FMON = 0, AGC2 time constant change

S meter slope

SSTH

Field strength threshold for seek stop

Free programmable switch

SWM

Free programmable switch mode

TDEV

Time constant for deviation detector

TISS

Time constant for ISS filter “ON”/”OFF”

TVM

Tuning voltage offset mode

TVO

Tuning voltage offset

TVO+

Additional fixed tuning voltage offset

VCOD

Tuner VCO divider

VCON

STD VCO “ON/OFF”

WBON

Weather band mode (ISS filter band width 24 kHz)

WMD

Weak signal mute depth

WMTH

Weak signal mute start point threshold

XTAL

Xtal frequency fine adjust

Table 14.

I2C control bit description (continued)

Name

Function

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