tda7421n STMicroelectronics, tda7421n Datasheet - Page 32

• Manufacturer Part Number: tda7421n
• Description: Am/fm Tuner For Car Radio And Hi-fi Applications
• Manufacturer: STMicroelectronics

TDA7421N
7.5 AM STOP STATION / AM AGC1 (subaddress 03H)
7.6 IFT1/IFT2 (subaddress 04H)
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IFT2adju
stopstation
st MSB
ASS3
T2A3
MSB
MSB
MSB
AM
X
0
1
0
0
0
0
1
1
all combinations allowed
all combinations allowed
IFT2adju
stopstation
ASS2
T2A2
AM
st
X
0
1
0
0
0
1
0
1
IFT2adju
stopstation
ASS1
T2A1
AM
st
X
0
1
0
0
1
0
0
1
IFT2adju
stopstation
st LSB
ASS0
T2A0
LSB
AM
X
0
1
0
1
0
0
0
1
IFT1adju
AMnagc
AAGN1
st MSB
all comb. allowed
T1A3
MSB
0
X
1
0
0
1
1
1
1
all combinations allowed
IFT1adju
AMnagc
AAGN0
T1A2
LSB
st
X
0
1
0
1
0
1
1
1
IFT1adju
AMwagc
AAGW1 AAGW0
all comb. allowed
T1A1
MSB
st
X
0
1
0
1
1
0
1
1
IFT1adju
AMwagc
st LSB
T1A0
LSB
LSB
LSB
X
0
1
0
1
0
1
0
1
AM WAGC THRESHOLD
Minimum sensitivity
Maximum sensitivity
AM NAGC THRESHOLD
Minimum sensitivity
Maximum sensitivity
AM STOP STATION THRESHOLD
Maximum sensitivity
Minimum sensitivity
ADJUSTMENT CAPACITOR
15Cift1
8Cift1
4Cift1
2Cift1
Cift2 ( = 380pF)
0
0
Cift1 ( = 1.57pF)
2Cift2
4Cift2
8Cift2
15Cift2
FUNCTION
FUNCTION