TDA7541B Datasheet, PDF (65/77 Pages) STMicroelectronics – AM/FM car radio tuner IC with stereo decoder and intelligent selectivity system

TDA7541B
Software specification
Table 39. Addr 22 SD NB I (FM 05h, AM 04h)
MSB
LSB
d7 d6 d5 d4 d3 d2 d1 d0
Function
NBENA
-
-
-
-
-
-
-
0 Audio noise blanker “OFF”
1 Audio noise blanker “ON”
00
NBT<2:1>
Audio noise blanking time 38 µs
-
- - - - 01
- Audio noise blanking time 25,5 µs
10
Audio noise blanking time 32 µs
11
Audio noise blanking time 22 µs
NBLT<5:3>
000
Noise blanker low threshold 280 mV
001
Noise blanker low threshold 261 mV
010
Noise blanker low threshold 242 mV
-
- 011 - -
- Noise blanker low threshold 223 mV
100
Noise blanker low threshold 204 mV
101
Noise blanker low threshold 185 mV
110
Noise blanker low threshold 166 mV
111
Noise blanker low threshold 147 mV
0
0
NBCT<7:6>
Noise blanker noise controlled threshold 1200 mV
0
1- - - - -
- Noise blanker noise controlled threshold 950 mV
1
0
Noise blanker noise controlled threshold 700 mV
1
1
Noise blanker noise controlled threshold 450 mV
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