TDA7460NDTR(2009) View Datasheet(PDF) - STMicroelectronics

Part Name

Description

Manufacturer

TDA7460NDTR
(Rev.:2009)

Car radio signal processor

STMicroelectronics 

Stereo decoder part

TDA7460ND

5.4

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

t(s) GBPMP Bandpass gain

Produc GRECTMP Rectifier gain

olete ICHMP

bs IDISMP

Rectifier charge current

Rectifier discharge

current

bits D2, D1 configuration byte = 00

bits D2, D1 configuration byte = 01

bits D2, D1 configuration byte = 10

bits D2, D1 configuration byte = 11

bits D7, D6 configuration byte = 00

bits D7, D6 configuration byte = 01

bits D7, D6 configuration byte = 10

) - O Figure 20. Block diagram of the stereo decoder

6

dB

16

dB

12

dB

18

dB

7.6

dB

4.6

dB

0

dB

1

μA

1.5

mA

Obsolete Product(s MPX

100K

INGAIN

3.5 ... 11dB

STEP 2.5dB

INFILTER

LP 80KHz

4.th ORDER

PLL +

PILOT-DET.

F19

F38

STEREO

NOISE BLANKER

DEMODULATOR

- PLOT CANC

- ROLL-OFF COMP.

- LP 25KHz

DEEMPHASIS

+ HIGHCUT

t=50 or 75μs

FM_L

FM_R

SB CONTROL

REF 5V

VSBL

HC

CONTROL

D

A

VHCCH

VHCCL

MPINFL

LEVEL INPUT

HOLDN

LEVEL INTERN

LP 2.2KHZ

-

1.th ORDER

LEVEL

GAIN 0..10dB

D97AU762

MULTIPATH

DETECTOR

MPIN

MPOUT

26/49

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