APA2177(2012) 查看數據表（PDF） - Anpec Electronics

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APA2177
(Rev.:2012)

25mW Stereo Cap-Free Headphone Driver

Anpec Electronics 

APA2177

Pin Description

PIN

WLCS

P

A1

Name

SDN

A2

VDD

A3

LOUT

A4

LIN-

B1

GND

B2

CPP

B3

HPVDD

B4

LIN+

C1

CPN

C2

HPVSS

C3

SGND

C4

RIN+

D1

HI-Z

D2

GAIN

D3

ROUT

D4

RIN-

I/O/P

Function Description

I

Shutdown mode control pin. A low-level voltage applied on this pin shuts off the headphone driver.

P

Supply voltage input pin.

O Left channel output for headphone.

I

Left channel audio signal inverting input pin.

P

Ground connection for circuitry.

P

Charge pump flying capacitor positive connection.

P

Positive power supply for headphone amplifiers.

I

Left channel audio signal non-inverting input pin.

P

Charge pump flying capacitor negative connection.

P

Charge pump output.

I

Amplifier reference voltage.

I

Right channel audio signal non-inverting input pin.

Output impedance select. Set to logic LOW for normal operation and logic HIGH for high output

I

impedance.

I

Gain select. Set to logic LOW for a gain of 0dB and to HIGH for a gain of 6dB.

O Right channel output for headphone.

I

Right channel audio signal inverting input pin.

Copyright © ANPEC Electronics Corp.

5

Rev. A.1 - Jul., 2012

www.anpec.com.tw

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