TDA7421 Datasheet, PDF (29/38 Pages) STMicroelectronics – AM/FM TUNER FOR CAR RADIO AND Hi-Fi APPLICATIONS

TDA7421
AM STOP STATION / AM AGC1 (subaddress 03H)
MSB
ASS3
amstopsta
tion MSB
ASS2 ASS1
amstopstation
ASS0
amstopsta
tion LSB
0
0
0
0
X
X
X
X
1
1
1
1
all combinations allowed
AAG3
AAG2
AAG1
LSB
AAG0
amagc1 amagc1 amagc1 amagc1
MSB
LSB
0
0
0
0
X
X
X
X
1
1
1
1
all combinations allowed
FUNCTION
AM AGC1
THRESHOLD
Maximum sensitivity
•••
Minimum sensitivity
AM STOP STATION
THRESHOLD
Maximum sensitivity
•••
Minimum sensitivity
IFT1/ IFT2 (subaddress 04H)
MSB
T2A3
IFT2
adjust
MSB
T2A2
IFT2
adjust
T2A1
IFT2
adjust
T2A0
IFT2
adjust
LSB
0
0
0
0
0
0
0
1
0
0
1
0
0
1
0
0
1
0
0
0
1
1
1
1
all combinations allowed
T1A3
T1A2
T1A1
LSB
T1A0
IFT1
adjust
MSB
0
0
0
0
1
1
IFT1
adjust
IFT1
adjust
IFT1
adjust
LSB
0
0
0
0
0
1
0
1
0
1
0
0
0
0
0
1
1
1
all combinations allowed
FUNCTION
ADJUSTMENT
CAPACITOR
0
Cift1
2Cift1
4Cift1
8Cift1
15Cift1
0
Cift2
2Cift2
4Cift2
8Cift2
15Cift2
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