E-TDA7461ND View Datasheet(PDF) - STMicroelectronics

Part Name

Description

MFG CO.

E-TDA7461ND

Car radio signal processor

STMicroelectronics 

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TDA7461

Stereo decoder part

Figure 19. Fieldstrength controlled trigger adjustment

VPEAK

MONO

STEREO

»3V

NOISE

2.3V(00)

1.8V(01)

1.3V(10)

ATC_SB OFF (11)

0.9V

noisy signal

D98AU863

good signal

E'

4.4

Multipath detector

● Internal 19 kHz bandpass filter

● Programmable bandpass and rectifier gain

● Two pin solution fully independent usable for external programming

● Selectable internal influence on Stereo blend

Table 10. Multipath detector electrical characteristics

Symbol

Parameter

Test condition

Min. Typ. Max. Unit

fCMP

Center frequency of

multipath- bandpass

stereo decoder locked on pilot

tone

19

KHz

bits D2, D1 configuration byte = 00

6

dB

GBPMP Bandpass gain

bits D2, D1 configuration byte = 01

16

dB

bits D2, D1 configuration byte = 10

12

dB

bits D2, D1 configuration byte = 11

18

dB

bits D7, D6 configuration byte = 00

7.6

dB

GRECTMP Rectifier gain

bits D7, D6 configuration byte = 01

4.6

dB

bits D7, D6 configuration byte = 10

0

dB

ICHMP

Rectifier charge current

1

μA

IDISMP

Rectifier discharge current

1.5

mA

25/48

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