TDA7541 Datasheet, PDF (65/76 Pages) STMicroelectronics – AM/FM car radio tuner IC with stereo decoder and intelligent selectivity system

TDA7541
Software specification
Table 38. 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 38µs
01
Audio noise blanking time 25,5µs
10
Audio noise blanking time 32µs
11
Audio noise blanking time 22µs
NBLT<5:3>
000
Noise blanker low threshold 280mV
001
Noise blanker low threshold 261mV
010
Noise blanker low threshold 242mV
011
100
Noise blanker low threshold 223mV
Noise blanker low threshold 204mV
101
Noise blanker low threshold 185mV
110
Noise blanker low threshold 166mV
111
Noise blanker low threshold 147mV
0
0
NBCT<7:6>
Noise blanker noise controlled threshold 1200mV
0
1
Noise blanker noise controlled threshold 950mV
1
0
Noise blanker noise controlled threshold 700mV
1
1
Noise blanker noise controlled threshold 450mV
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