TDA7400 查看數據表（PDF） - STMicroelectronics

零件编号

产品描述 (功能)

生产厂家

TDA7400

ADVANCED CAR SIGNAL PROCESSOR

STMicroelectronics 

TDA7400

Figure 3. Fieldstrength Controlled Trigger Adjustment

VPEAK

»3V

MONO

STEREO

NOISE

2.4V(00)

1.9V(01)

1.4V(10)

ATC_SB OFF (11)

0.9V

noisy signal

D97AU650

Multipath Detector

Internal 19kHz band pass filter

Programmable band pass and rectifier gain

good signal

E'

two pin solution fully independent usable for

external programming

selectable internal influence on Stereoblend

ELECTRICAL CHARACTERISTICS (continued)

Symbol

fCMP

GBPMP

Parameter

Center Frequency of Multipath-

Bandpass

Bandpass Gain

GRECTMP Rectifier Gain

ICHMP

IDISMP

Rectifier Charge Current

Rectifier Discharge Current

Test Condition

Min. Typ. Max. Unit

stereodecoder locked on Pilottono

19

KHz

bits D2, D1 configuration byte = 00

6

dB

bits D2, D1 configuration byte = 10

12

dB

bits D2, D1 configuration byte = 01

16

dB

bits D2, D1 configuration byte = 11

18

dB

bits D7, D6 configuration byte = 00

7.6

dB

bits D7, D6 configuration byte = 01

4.6

dB

bits D7, D6 configuration byte = 10

0

dB

bits D7, D6 configuration byte = 11

off

dB

bit D5 configuration byte = 0

0.5

µA

bit D5 configuration byte = 1

1.0

µA

0.5

1

1.5 mA

Quality Detector

Symbol

A

Parameter

Multipath Influence Factor

Test Condition

bit D7 High-Cut byte +

bit D7 Fieldstrength byte +

Min. Typ. Max. Unit

00

0.7

01

0.85

10

1.00

11

1.15

11/28

Share Link: