—3—

CXA1622M/P

Pin

Symbol

Equivalent circuit

Pin voltage

Description

No.

3 V

6 V

14

15

2

VOL

REG

SW

20k

80k

GND

14

4k

24k

15

15k

15k

REG

2

0 to

1.25

1.25

1.25

0 to

1.25

1.25

1.25

Control gain with change in voltage

(0 to 1.25 V) to electrical volume

control pin.

Regulator pin

Mode selection SW

• BTL mode when open

• Stereo mode when connected to

GND

Block Diagram, Pin Configuration, and Application Circuit

1) Stereo mode

+

+

IN1

C2

10µ

C3

10µ

R1

50k

C5

3.3µ

C7

0.1µ

C9

0.1µ

C10

220µ

C12

220µ

V1

3V

GND

SP1

8

OUT1

16

15

14

13

12

11

10

9

8

7

6

5

4

3

2

1

REG

VOL

PRE+POWER1

PRE+POWER2

IN2

C1

10µ

C4

3.3µ

C5

0.1µ

C8

10µ

C11

220µ

GND

GND

OUT2

SP2

8