TDA7335 查看數據表（PDF） - STMicroelectronics

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TDA7335

STEREO PREAMP + AMS + DOLBY B* NOISE REDUCTION PROCESSOR

STMicroelectronics 

TDA7335

ABSOLUTE MAXIMUM RATINGS

Symbol

VS

Ptot

Top

Tstg

Parameter

Supply Voltage

Total Power Dissipation

Operating Temperature Range

Storage Temperature Range

Value

12

1

-40 to 85

-40 to 150

Unit

V

W

°C

°C

THERMAL DATA

Rth j-pins

Thermal resistance junction-pins

85

°C/W

PIN FUNCTIONS

N.

1

2,3

4,27

5, 26

6, 25

7, 24

8

9

10

11

12, 19

13, 18

14

15

16

17

20

21

22

23

28, 29

30

Name

VDC (V)

GND

IN L1, IN L2

0

EQLI, EQRI

4.6

EQLO, EQRO 4.6

OUTL, OUTR 4.6

DINL, DINR

Vref

AMS SW

5.6

INTP

INTS

MUTE

TLC, TCR

0.4

DOUTL, DOUTR Vref

Iref

1.2

F/R SW

5.6

VS

Vref

NR SW

VS/2

AMS GIN

1.4

AMS OUT

GND DIG.

0

IN R1, IN R2

0

EQ SW

0

Function

Ground

Preamplifier Left Inputs 1,2

Equalizer Inputs

Equalizer Outputs

Preamplifier Outputs

Dolby NR Inputs

Audio Music Sensor Switch (ON/OFF) HIGH = ON

Interprogram Time Constant (”Signal Detection”)

Interspace Time Constant (”Blank Detection”)

Mute Switch ON = LOW (2)

Dolby Time Constants

Dolby Outputs

Reference Current Source

Forward/Reverse Switch HIGH = Forward LOW = Reverse

Positive Power Supply

Reference Voltage

Noise reduction ON/OFF: HIGH = OFF (2)

Audio Music Sensor Input Pin

Audio Music Sensor Output Pin (open collector configuration, see Fig. 2)

Digital Ground

Preamplifier Right Inputs 1,2

Equalizer Switch (Low = normal position High = metal position)

(2) Internal pull-up resistor (digital high level if pin left open)

2/20

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