SGS Thomson Microelectronics TEA6422 Datasheet

BUS-CONTROLLED AUDIO MATRIX

.

6 STEREOINPUTS

.

3 STEREOOUPUTS

.

GAIN CONTROL 0dB/MUTE FOR EACH OUT­PUT

.

CASCADABLE(2DIFFERENTADDRESSES)

.

SERIALBUS CONTROLLED

.

VERYLOWNOISE

.

VERYLOWDISTORSION

.

FULLYESD PROTECTED

DESCRIPTION

The TEA6422 switches 6 stereo audio inputs on
3 stereo outputs.
All theswitchingpossibilities arechangedthrough

2

the I

CBUS.

TEA6422

SHRINK 24

(Plastic Package)

ORDER CODE : TEA6422

SO28

(Plastic Micropackage)

ORDER CODE : TEA6422D

PIN CONNECTIONS

GND

CAPACITANCE

V

S

L1
L2
L3
L4
L5
L6

LOUT1

ROUT1

LOUT2

May 1996

SDIP24

1
2
3
4
5
6
7
8
9
10
11
12

SO28

24

SDA

23

SCL

22

ADDR

21

R1

20

R2

19

R3

18

R4

17

R5

16

R6

15

ROUT3

14

LOUT3

13

ROUT2

CAPACITANCE

GND

LOUT1

ROUT1

V
L1
L2

L3
NC
NC

L4

L5

L6

1
2
3

S

4
5
6
7
8
9
10
11
12
13
14

28
27
26
25
24
23
22
21
20
19
18
17
16
15

SDA
SCL
ADDR
R1
R2
R3
NC
NC
R4
R5
R6
ROUT3
LOUT3
ROUT2LOUT2

6422-01.EPS / 6422-02.EPS

1/9

TEA6422

BLOCK DIAGRAM

RIGHT INPUTS

GND

T

E

GAIN = 0/2/4/6dB

A

6
4
2

RIGHT
OUTPUTS

2

V

S

C

SUPPLY BUS DECODER

GAIN = 0/2/4/6dB

LEFT INPUTS

SDA

SCL
ADDR

LEFT
OUTPUTS

6422-03.EPS

ABSOLUTEMAXIMUM RATINGS

Symbol Parameter Value Unit

V

CC

T

oper

T

stg

Supply Voltage 12 V
Operating Temperature 0, + 70
Storage Temperature - 20, + 150

THERMAL DATA

Symbol Parameter Value Unit

R

th(j-a)

Junction - ambient ThermalResistance SDIP24

SO28

75
75

o

C/W

o

C/W

o

C

o

C

6422-01.TBL

6422-02.TBL

2/9

TEA6422

ELECTRICAL CHARACTERISTICS

=25oC, VS= 9V,RL=10kΩ,RG= 600Ω, f =1kHz (unless otherwise specified)

T

A

Symbol Parameter Test Conditions Min. Typ. Max. Unit

SUPPLY

V

I

S

SVR Ripple Rejection V

MATRIX

V

IN

R

C

OUTPUT BUFFER

V

OUT

R

OUT

e

NI

S/N Signal to Noise Ratio V

G Gain -1 0 + 1 dB

d Distortion V

V

CL

R

Supply Voltage 8 9 10.2 V

S

Supply Current 3 8 mA

= 500mV

IN

, f = 1kHz 70 80 dB

RMS

Input DC Level 4.5 V
Input Resistance 30 50 100 kΩ

I

Channel Separation VIN=2V

S

, f = 1kHz 80 90 dB

RMS

Output DC Level 4.2 4.5 4.8 V
Output Resistance 50 100 Ω
Input Noise BW = 20- 20kHz, flat 3 µV

IN=VOUT

IN=VOUT

=1V

=1V

RMS

RMS

110 dB

0.01 0.05 %
Clipping Level d = 0.3% 2 2.5 V
Output Load Resistance 2 kΩ

L

RMS

6422-03.TBL

3/9