TDA7421 View Datasheet(PDF) - STMicroelectronics

Part Name

Description

MFG CO.

TDA7421

AM/FM TUNER FOR CAR RADIO AND HI-FI APPLICATIONS

STMicroelectronics 

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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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