TDA7541 Datasheet, PDF (54/76 Pages) STMicroelectronics – AM/FM car radio tuner IC with stereo decoder and intelligent selectivity system

Software specification
TDA7541
Table 25. Addr 9 Quality Dev (FM 49h)
MSB
LSB
d7 d6 d5 d4 d3 d2 d1 d0
Function
TDEV<2:0>
0 0 0 charge current 39µA, discharge current 1 µA
0 0 1 charge current 38 µA, discharge current 2 µA
0 1 0 charge current 37 µA, discharge current 3 µA
0 1 1 charge current 36 µA, discharge current 4 µA
--
--
1 1 0 charge current 33 µA, discharge current 7 µA
1 1 1 charge current 32 µA, discharge current 8 µA
DWTH<4:3>
00
DEV threshold for ISS narrow/wide 20kHz
01
DEV threshold for ISS narrow/wide 30kHz
10
DEV threshold for ISS narrow/wide 40kHz
11
DEV threshold for ISS narrow/wide 50kHz
DTH<6:5>
00
DEV threshold for ISS filter “OFF” ratio 1.5
01
DEV threshold for ISS filter “OFF” ratio 1.4
10
DEV threshold for ISS filter “OFF” ratio 1.3
11
DEV threshold for ISS filter “OFF” ratio 1
ISSM
0
ISS filter application mode 1
1
ISS filter application mode 2
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