E-TDA7461ND データシートの表示（PDF） - STMicroelectronics

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E-TDA7461ND

Car radio signal processor

STMicroelectronics 

TDA7461

Data byte specification

l

Table 22. Field strength control

MSB

D7 D6 D5 D4 D3 D2

0

0

0

1

1

0

1

1

0

0

0

1

1

0

1

1

1

0

0

1

Table 23. Configuration

MSB

D7 D6 D5 D4 D3 D2

0

0

0

1

1

0

1

1

0

1

1

0

0

0

1

1

0

1

1

LSB

D1 D0

Function

0

0 Noise blanker Field strength Adj 2.3 V

0

1 Noise blanker Field strength Adj 1.8 V

1

0 Noise blanker Field strength Adj 1.3 V

1

1 Noise blanker Field strength Adj Off

VSBL at 33 % REF 5 V

VSBL at 42 % REF 5 V

VSBL at 50 % REF 5 V

VSBL at 58 % REF 5 V

VHCH at 42 % REF 5 V

VHCH at 50 % REF 5 V

VHCH at 58 % REF 5 V

VHCH at 66 % REF 5 V

VHCL at 17 % VHCH

VHCL at 33 % VHCH

High cut OFF

High cut ON

LSB

D1 D0

Function

Noise rectifier discharge resistor

0

0 R = infinite

0

1 R = 56 kΩ

1

0 R = 33 kΩ

1

1 R =18 kΩ

Multipath detector bandpass gain

6 dB

16 dB

12 dB

18 dB

Multipath detector internal

influence

On

Off

Mute be “1”

Multipath detector reflection gain

Gain = 7.6 dB

Gain = 4.6 dB

Gain = 0 dB

Off

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