Copyright

© ANPEC Electronics Corp.

Rev. A.3 - Oct., 2013

www.anpec.com.tw

8

APA2012

Pin Description

PIN

NO.

WLCSP1.2x1.2-9

TDFN3x3-8

NAME

I/O

FUNCTION

A1

4

INP

I

The non-inverting input of amplifier. INP is connected to Gnd via a

capacitor for single-end (SE) input signal.

A2

6

GND

-

Ground connection for circuitry.

A3

5

VON

O

The negative output terminal of Class-D amplifier.

B1

3

VDD

-

Supply voltage input pin.

B2

7

PVDD

-

Supply voltage only for power stage.

B3

-

PGND

-

Ground connection for power stage

C1

2

INN

I

The inverting input of amplifier. INN is used as audio input

terminal, typically.

C2

1

SD

I

Shutdown mode control signal input, place entire IC in shutdown

mode when held low.

C3

8

VOP

O

The positive output terminal of Class-D amplifier.

Block Diagram

Startup

protection

logic

Biases &

Reference

Over-Current

Protection

Thermal

Protection

Gate

Drive

De-glitch

&

Modulati

on Logic

Gate

Drive

GND

INP

INN

RAMP GEN

TTL Input

Buffer

SD

320k

Ω

VDD

POR