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APA2181

ANPEC
Part Number APA2181
Manufacturer ANPEC
Description Stereo Cap-Free Headphone Driver
Published Aug 15, 2020
Detailed Description APA2181 Low Supply Current, 50mW Stereo Cap-Free Headphone Driver Features General Description • Operating Voltage: ...
Datasheet PDF File APA2181 PDF File

APA2181
APA2181

Overview
APA2181 Low Supply Current, 50mW Stereo Cap-Free Headphone Driver Features General Description • Operating Voltage: 2.
3V~5.
5V • Supply Current - I =1mA at V =3.
6V DD DD • Low Shutdown Current - IDD=5µA at VDD=3.
6V • Ground Reference Output - No Output Capacitor Required (for DC Blocking) - Save the PCB Space - Reduce the BOM Costs - Improve the Low Frequency Response • Output Power 50mW/Ch into 16Ω at V =3.
6V DD • High PSRR: 80dB at 217Hz • Fast Start-Up Time: 4ms • Integrate the De-pop Circuitry • Thermal Protection • Integrated LDO (Low Dropout Regulator) for Microphone Detection Circuit (1.
9V) • Surface-Mount Packaging WLCSP1.
6x1.
6-12 • Lead Free and Green Devices Available (RoHS Compliant) Applications The APA2181 is a stereo, fixed gain, single supply, and cap-free headphone driver, which is available in a WLCSP1.
6x1.
6-12 package.
The APA2181 is ground-reference output, and no need the output capacitors for DC blocking.
The advantages of eliminating the output capacitor are saving the cost, eliminating component height, and improving the low frequency response.
The internal fixed gain setting (-1.
5V/V) can minimize the external component counts and save the PCB space.
High PSRR provides increased immunity to noise and RF rectification.
LDO is the best solution for microphone detection circuit requirement, and it can lower the total BOM costs.
The APA2181 is capable of driving 50mW at 3.
6V into16Ω load, and provides thermal protection.
Simplified Application Circuit Stereo RIN Input Signal LIN Shutdown SDN Control APA2181 Stereo Headphone ROUT LOUT LOUT To Microphone Detection Circuit • Handsets • PDAs • Portable Multimedia Devices • Notebooks 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.
Copyright © ANPEC Electronics Corp.
1 Rev.
A.
2 - Apr.
, 2010 www.
anpe...


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