LA6242H

No.7814-5/9

Pin Functions

Pin No.

Pin name

Pin description

1

VIN1−A

Channel 1 input amplifier A inverting input

2

VIN1+A

Channel 1 input amplifier A non-inverting input

3

VCCP1

Channels 1 and 2: power stage power supply

4

VO1+

Channel 1 output (

+)

5

VO1−

Channel 1 output (

−)

6

VO2+

Channel 2 output (

+)

7

VO2−

Channel 2 output (

−)

8

VO3+

Channel 3 output (

+)

9

VO3−

Channel 3 output (

−)

10

VO4+

Channel 4 output (

+)

11

VO4−

Channel 4 output (

−)

12

VCCP2

Channels 3 and 4: power stage power supply

13

VIN4

Channel 4 input

14

VIN4G

Channel 4 input (gain adjustment)

15

VIN3

Channel 3 input

16

VIN3G

Channel 3 input (gain adjustment)

17

VIN2

Channel 2 input

18

VIN2G

Channel 2 input (gain adjustment)

19

REGIN

Base connection of external PNP transistor

20

REGOUT

Regulator error amplifier input (+)

21

VCCS

Signal system power supply

22

VREFIN

Reference voltage input

23

MUTE

Output on/off control

24

VIN1-SW

Channel 1 input operational amplifier switching

25

SGND

Signal system ground

26

VIN1+B

Channel 1 amplifier B non-inverting input

27

VIN1−B

Channel 1 amplifier B inverting input

28

VIN1

Channel 1 input and input operational amplifier output

Note:

• The center frame (FR) is used as the power system ground (P-GND). Along with the signal system ground (SGND), this level must be the lowest

potential in the system.