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TDA7319

3 BAND DIGITAL CONTROLLED AUDIO PROCESSOR

ONE STEREO INPUT

ONE STEREO OUTPUT

TWO INDEPENDENT VOLUME CONTROL IN

1.0dB STEPS

TREBLE, MIDDLE AND BASS CONTROL IN

1.0dB STEPS

ALL FUNCTIONS PROGRAMMABLE VIA SE-

RIAL I

2

CBUS

DESCRIPTION

The TDA7319 is a volume and tone (bass , mid-

dle and treble) processor for quality audio appli-

cation in car radio and Hi-Fi system.

Control is accomplished by serial I

2

C bus micro-

processor interface.

The AC signal setting is obtained by resistor net-

works and switches combined with operational

amplifiers.

BLOCK DIAGRAM AND APPLICATION CIRCUIT

R1

2.7K

C3

5.6nF

TREBLE(L)

3

C1 2.2碌F

L

2

1st VOL

TREBLE

MIDDLE

BASS

C5

15nF

MOUT(L)

5

C6

22nF

6

C9

100nF

BIN(L)

7

2nd VOL

R3

5.6K

C10

100nF

BOUT(L)

DIP20

SO20

ORDERING NUMBERS:

TDA7319 (DIP20)

TDA7319D (SO20)

Thanks to the used BIPOLAR/MOS Technology,

Low Distortion, Low Noise and Low Dc stepping

are obtained.

MIN(L)

4

8

OUT L

10

9

11

19

R

1st VOL

TREBLE

MIDDLE

BASS

2nd VOL

SCL

SDA

DIGGND

I

2

C

BUS

SERIAL BUS DECODE & LATCHES

C2 2.2碌F

13

OUT R

VS

1

SUPPLY

12

AGND

CREF

20

TREBLE(R)

C REF

10碌F

C4

5.6nF

18

MIN(R)

17

MOUT(R)

C7

15nF

R2

2.7K

C8

22nF

16

15

BIN(L)

C11

100nF

R4

5.6K

14

BOUT(R)

C12

100nF

D93AU042E

May 1995

1/16

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