Copyright

© ANPEC Electronics Corp.

Rev. A.6 - Dec., 2011

www.anpec.com.tw

1

ANPEC reserves the right to make changes to improve reliability or manufacturability without notice, and

advise customers to obtain the latest version of relevant information to verify before placing orders.

Stereo Cap-Free Line Driver

APA2174

Features

General Description

Applications

- I

- I

- No Output Capacitor Required (for DC Blocking)

- Save the PCB Space

- Reduce the BOM Costs

- Improve the Low Frequency Response

600

tion

- TQFN4x4-20B (with Enhanced Thermal Pad)

- TSSOP-16

- SOP-14

(RoHS Compliant)

Simplified Application Circuit

The APA2174 is a stereo, single supply and cap-free line

driver, which is available in TQFN4x4-20B, TSSOP-16,

and SOP-14 packages.

The APA2174 is a ground-reference output and doesn’t

need the output capacitors for DC blocking. The advan-

tages of eliminating the output capacitor are saving the

cost, eliminating component height, and improving the

low frequency response.

The external gain setting is recommended using from

-1V/V to -10V/V. High PSRR provides increased immunity

to noise and RF rectification. The independent shutdown

control of APA2174 is for right channel and left channel.

The APA2174 is capable of driving 2Vrms at 3.3V into

600

Ω load, and provides thermal protection.

APA2174

ROUT

RIN

RSD

LIN

LOUT

LSD

Stereo

Input

Signal

Shutdown

Control

Stereo

Line-Out

Signal