TDA7540B datasheet(39/75 Pages) STMICROELECTRONICS

39 / 75 page

TDA7540B

Software specification

39/75

5.2

Control register function

Table 10.

Control register function

Function

Charge pump high current

ACF

Adjacent channel filter select

ACG

Adjacent channel filter gain

ACM

Threshold for startpoint adjacent channel mute

ACMD

Adjacent channel mute depth

ACNTH

Adjacent channel narrow band threshold

ACWTH

Adjacent channel wide band threshold

AFSM

AFS influence on stereodecoder mute

AFSON

AFS Pin enable

AINBD

AM IF noise blanker desensitivity

AINBT

AM IF noise blanker threshold

AINT

AM IF noise blanking time

AMAF

AM audio filter

AMD

AM prescaler

AMCF

AM corner frequency

AMIN

AM IF1 input select

AMNBD

AM audio delay for noise blanking

AMNBFO

AM audio noise blanker high pass filter order

AMNBHP

AM audio noise blanker high pass filter frequency

AMON

AM-FM switch

AMSEEK

Set short time constant of AGC in AM seek mode

AMST

AM stereo select

APPM

Application mode quality detection

Charge pump low current

BWCTL

ISS filter fixed bandwith (ISS80) in automatic control

CASF

Check alternative station frequency

Center frequency IF counter

CLKSEP

Clock separation (only for testing)

CTLOFF

Switch off automatic control of ISS filter

CURRH

Set current high charge pump

DAGC

AM narrow band AGC threshold

DEEMP

Stereodecoder deemphasis

DEM

Demodulator offset

TDA7540B 数据表(PDF) 39 Page - STMicroelectronics

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