Copyright

© ANPEC Electronics Corp.

Rev. A.3 - Jul., 2010

www.anpec.com.tw

9

APA2175

Pin Description

PIN

NO.

TQFN4x4-20B

TSSOP-16

NAME

I/O/P

FUNCTION

1

4

CPP

I/O

Charge pump flying capacitor positive connection.

2

5

PGND

P

Charge pump’s ground.

3

6

CPN

I/O

Charge pump flying capacitor negative connection.

4,6,8,12,

16,20

1,3

NC

-

No Connection.

5

7

CVSS

O

Charge pump output, connect to the “VSS”.

7

8

VSS

P

Line Driver negative power supply.

9

9

LOUT

O

Left channel output for Line Driver.

10

10

VDD

P

Power supply.

11

11

ROUT

O

Right channel output for Line Driver.

13

12

LIN

I

Left channel input terminal.

14

13

RSD

I

Right channel shutdown mod control input signal, pull low for shutdown

the right channel line driver.

15

14

RIN

I

Right channel input terminal.

17

15

GND

P

Ground connection for circuitry.

18

16

LSD

I

Left channel shutdown mod control input signal, pull low for shutdown

the right channel line driver.

19

2

PVDD

P

Charge pump power supply.

Block Diagram

Shutdown

Circuit

Power and

Depop

Circuit

ROUT

RIN

RSD

Charge

Pump

LIN

LOUT

GND

VDD

CPP

CPN

CVSS

VSS

PGND

PVDD

LSD