AP130

Preliminary

1W Per Channel Stereo Class-D Audio Power Amplifier

PRELIMINARY

(November, 2001, Version 0.1)

1

AMIC Technology, Inc

Features

n 1 watt per channel with 8-ohm load

n Max. efficiency

≈ 80% with 8-ohm load at 5 volts

n Filterless

n Digital gain control

n Build-in depop circuitry

n Error protection for short circuit and over-temperature

n Mute (shutdown) current < 1µA typical

n Low operating current (4mA at 5 volts without load)

n TSSOP 24L package available

General Description

The AP130 is an oversampling class-D power amplifier for

stereo audio applications. It provides high power-efficiency

for filterless 8-ohm load. Build-in depop, mute and gain

control features simplify the applications.

BTL (Bridge-Tied-Load) configuration delivers up to 1 watt

into 8-ohm load per channel at 5-V supply voltage. It

allows direct coupling of the power signal. Reliability is

improved through over-temperature and short circuit

protections.

The class-D power amplifier enables high efficiency

applications for portable devices.

Pin Configurations

n TSSOP

OUTP1

PGND

VREF

AP130X

1

9

24

16

PGND

OUTN1

2

3

4

5

6

7

8

10

11

12

G0

INN2

OUTN2

PGND

23

22

21

20

19

18

17

15

14

13

INP1

INP2

OSC

INN1

AGND

G1

OUTP2

PGND

SDB