APA2178 Ver la hoja de datos (PDF) - Anpec Electronics

Número de pieza

componentes Descripción

Fabricante

APA2178

100mW Stereo Cap-Free Headphone Driver

Anpec Electronics 

APA2178

Pin Description

PIN

NO.

MANE

A1

RIN

A2

GND

A3

PVDD

A4

CP+

B1

RSD

B2

LSD

B3,C3

NC

B4

PGND

C1

LIN

C2

ROUT

C4

CP-

D1

VDD

D2

LOUT

D3

VSS

D4

CVSS

Block Diagram

I/O/P

FUNCTION

I

Right channel audio signal input pin.

P

Ground connection for circuitry.

P

Charge pump power supply voltage input pin.

I/O

Charge pump flying capacitor positive connection.

I

Right channel shutdown mode control pin. A low-level voltage applied on this

pin shuts off the right channel headphone driver.

I

Left channel shutdown mode control pin. A low-level voltage applied on this

pin shuts off the left channel headphone driver.

-

No Connection.

P

Charge pump ground.

I

Left channel audio signal input pin.

O

Right channel output for headphone.

I/O

Charge pump flying capacitor negative connection.

P

Supply voltage input pin.

O

Left channel output for headphone.

P

Connect this pin to CVSS.

O

Charge pump output.

RIN

LIN

RSD

LSD

GND

Shutdown

Circuit

Power and

Depop Circuit

ROUT

Charge

Pump

LOUT

PVDD

CP+

CP-

GND PGND VDD

VSS

Copyright © ANPEC Electronics Corp.

21

Rev. A.3 - Jul., 2009

CVSS

www.anpec.com.tw

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