TDA7411 datasheet(22/43 Pages) STMICROELECTRONICS

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TDA7411

22/43

MULTIPATH DETECTOR

Features:

– internal 19kHz band-pass filter

– programmable band-pass and rectifier gain

– two pin solution fully independent usable for external programming

– selectable internal influence on Stereoblend

ELECTRICAL CHARACTERISTICS (continued)

QUALITY DETECTOR

ELECTRICAL CHARACTERISTICS (continued)

Symbol

Parameter

Test Condition

Min.

Typ.

Max.

Unit

fCMP

Center frequency of Multipath-

Bandpass

stereo decoder locked on Pilot

tone

kHz

GBPMP

Band pass Gain

bits D2, D1 configuration byte = 00

bits D2, D1 configuration byte = 01

bits D2, D1 configuration byte = 10

bits D2, D1 configuration byte = 11

GRECTMP Rectifier Gain

bits D7, D6 configuration byte = 00

7.6

bits D7, D6 configuration byte = 01

4.6

bits D7, D6 configuration byte = 10

bits D7, D6 configuration byte = 11

off

ICHMP

Rectifier Charge Current

bit D5, configuration byte = 0

bit D5, configuration byte = 1

0.2

0.4

µA

IDISMP

Rectifier Discharge Current

0.5

1.5

Symbol

Parameter

Test Conditions

Min.

Typ.

Max.

Unit

Multipath Influence

Factor

Addr12 / Bit 5+6

0.2

0.3

0.4

0.5

Noise Influence Factor

Addr16 / Bit 1+2

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