TDA7541B datasheet(55/77 Pages) STMICROELECTRONICS

55 / 77 page

TDA7541B

Software specification

Doc ID 16048 Rev 1

55/77

Table 27.

Addr 10 Quality MUX/FSU (FM 0Eh, AM 0Fh)

MSB

LSB

Function

MUX<1:0>

Detected multipath information at PIN 23

Detected adjacent channel information at PIN 23

Quality information stereo decoder at PIN 23

FMON=1: Stereo indication at PIN 23

FMON=0: AM IF2 signal at PIN 23

---

SACCE

Strong adjacent channel correction disable

Strong adjacent channel correction enable

SACCT

Strong adjacent channel correction threshold = 2.9 V

Strong adjacent channel correction threshold = 3.0V

SSTH<7:4>

SSTOP = IFC (IF counter status)

SSTOP = H if IFC = H & FS > (FM: 0.6 V / AM: 1.2 V)

SSTOP = H if IFC = H & FS >

SSTOP = H if IFC = H & FS > (FM: 4.1 V / AM: 4.8 V)

Table 28.

Addr 11 Weak Signal Mute (FM A8h)

MSB

LSB

Function

ISSON

-----

ISS filter internal control

ISS filter forced “ON”

WBON

-----

Weather band disable

Weather band enable

WMTH<4:2>

Startpoint mute 0

Startpoint mute 1

Startpoint mute 2

Startpoint mute 6

Startpoint mute 7

WMD<7:5>

Mute depth 0

Mute depth 1

Mute depth 5

Mute depth 7

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