APA2180 Datasheet, PDF (1/22 Pages) Anpec Electronics Coropration – Low Supply Current, 50mW Stereo Cap-Free Headphone Driver

APA2180
Low Supply Current, 50mW Stereo Cap-Free Headphone Driver
Features
General Description
• Operating Voltage: 2.3V~5.5V
• Supply Current
- I_DD=1mA at V_DD=3.6V
• Low Shutdown Current
-
I_DD=5µA
at
V =3.6V
DD
• 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_DD=3.6V
• High PSRR: 80dB at 217Hz
• Fast Start-Up Time: 4ms
• Integrate the De-pop Circuitry
• Thermal Protection
• Surface-Mount Packaging
WLCSP1.6x1.6-12
TDFN3x3-12
• Lead Free and Green Devices Available
(RoHS Compliant)
Applications
• Handsets
• PDAs
• Portable Multimedia Devices
• Notebooks
The APA2180 is a stereo, fixed gain, single supply, and
cap-free headphone driver, which is available in a
WLCSP1.6x1.6-12and TDFN3x3-12 packages.
The APA2180 is ground-reference output and don’t need
the output capacitors for DC blocking. The advantages of
eliminating the output capacitor are saving the cost, elimi-
nating 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.
The APA2180 is capable of driving 50mW at 3.6V into 16Ω
load and provides thermal protection.
Simplified Application Circuit
Stereo ^RIN
Input
LIN
Signal
Shutdown _SDN
Control
APA2180
Stereo
Headphone
ROUT
LOUT
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.3 - Dec., 2012
www.anpec.com.tw