TDA7541B Datasheet, PDF (66/77 Pages) STMicroelectronics – AM/FM car radio tuner IC with stereo decoder and intelligent selectivity system

Software specification
TDA7541B
Table 40. Addr 23 SD NB II (FM E2h, AM C2h)
MSB
LSB
d7 d6 d5 d4 d3 d2 d1 d0
Function
NBPC
-
- - - - - - 0 Noise blanker peak charge current low
1 Noise blanker peak charge current high
00
NBRR<2:1>
Noise rectifier discharge resistor = infinite
-
- - - - 01
- Noise rectifier discharge resistor =56 k
10
Noise rectifier discharge resistor =33 k
11
Noise rectifier discharge resistor =18k
NBMP
-
- - -0- -
- Multipath influence on peak discharge “OFF”
1
Multipath influence on peak discharge “ON” (-3 V/ms)
NBSMP
-
- -0- - -
- Strong multipath influence on peak discharge “OFF”
1
Strong multipath influence on peak discharge “ON”
VCON
-
-0- - - -
- Stereo decoder VCO “OFF”
1
Stereo decoder VCO “ON”
PCM
-
0-
-
-
--
- Pilot cancellation mode: always
1
Pilot cancellation mode: if pilot > pilot threshold
ADSEL
0
--
--
--
- Additional selectivity OFF
1
Additional selectivity ON
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Doc ID 16048 Rev 1