TDA7421 Datasheet, PDF (28/38 Pages) STMicroelectronics – AM/FM TUNER FOR CAR RADIO AND Hi-Fi APPLICATIONS

TDA7421
FM STOP STATION / FM IF AGC (subaddress 01H)
MSB
FAG2
fmifagc
MSB
FAG1
fmifagc
FAG0
fmifagc
LSB
FAG4
fmstop
station
MSB
0
X
1
0
0
0
X
X
X
1
1
0
1
1
1
all combinations allowed
FSS3
FSS2
FSS1
LSB
FSS0
fmstop
station
fmstop
station
fmstop
station
0
0
0
X
X
X
1
1
1
all combinations allowed
fmstop
station
LSB
0
X
1
FUNCTION
FM STOP STATION
THRESHOLD
Maximum sensitivity
•••
Minimum sensitivity
FM IF AGC
THRESHOLD
Maximum sensitivity
•••
Minimum sensitivity
Keying AGC disabled
FM SMETER SLIDER (subaddress 02H)
MSB
FSL4
fmsmeters
lider MSB
FSL3
FSL2
FSL1
fmsmeterslider
FSL0
fmsmeter
slider LSB
0
0
0
0
0
0
0
0
0
1
0
0
0
1
0
0
0
1
0
1
0
1
0
0
0
1
0
0
0
0
1
1
1
1
1
all combinations allowed
LSB
FUNCTION
FM SMETER SLIDER
THRESHOLD (mV)
300 (baseline)
348.4 (+48.4)
396.8 (+96.8)
493.6 (+193.6)
687.2 (+387.2)
1074.4 (+774.4)
1800 (top)
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