LA42210

No.A0660-3/7

Block Diagram

Test Circuit

* Pin 8 : NC. This pin must be left open.

* Pins 1 and 15 are connected to the heat sink. They must be connected to power and ground.

Pin Voltage

Conditions : VCC = 13V, STBY = 5V

Pin No.

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

Pin

GND

(H.S)

Ripple

Filter

IN1

Pre

GND

IN2

STBY

Mute

N.C.

VCC +OUT2 Power

GND

-OUT2 -OUT1 +OUT1 GND

(H.S)

Pin voltage

(V)

0

12.7

1.5

0

1.5

5

0

-

13

6.6

0

6.6

6.6

6.6

0

Ripple

Filter

Input amplifier

Input amplifier

Output amplifier

Output amplifier

VCC/ground shorting protection circuit

Load shorting protection circuit

Thermal protection circuit

VCC

Standby

MUTE

IN2

PRE

GND

PWR

GND

+OUT1

-OUT1

+OUT2

-OUT2

IN1

2

3

14

9

6

13

11

7

4

5

Ri=

30k

Ω

10

12

Ri=

30k

Ω

IN1

Ripple

Filter

PRE

GND

PWR

GND

GND

(H.S)

GND

(H.S)

IN2

STBY MUTE

+OUT2

+OUT1

-OUT2 -OUT1

VCC

+

+

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

C4

10

μF

/6.3V

C5

0.1

μF

C2

0.47

μF

C1

0.47

μF

C3

100

μF

/25V

+5V

RL = 8Ω

RL = 8Ω

R1

15k

Ω

+

C6

470

μF

/25V

+VCC

LA42210