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APA2177 Datasheet(PDF) 1 Page - Anpec Electronics Coropration

No. de Pieza. APA2177
Descripción  25mW Stereo Cap-Free Headphone Driver
Descarga  20 Pages
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Fabricante  ANPEC [Anpec Electronics Coropration]
Página de inicio  http://www.anpec.com.tw
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APA2177 Datasheet(HTML) 1 Page - Anpec Electronics Coropration

 
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25mW Stereo Cap-Free Headphone Driver
Copyright
© ANPEC Electronics Corp.
Rev. A.1 - Jul., 2012
APA2177
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.
Features
The APA2177 is a stereo, fixed gain, single supply, and
cap-free headphone driver, which is available in a WLCSP-
16 packages.
The APA2177 is ground-reference output, and no 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 selectable gain (0dB or 6dB) can minimize
the external component counts and save the PCB space.
High PSRR provides increased immunity to noise and
RF rectification.
The APA2177 is capable of driving 25mW at 3.6V into 16
load and provides thermal protection.
Applications
Handests
PDAs
Portable Multimedia Devices
Notebooks
General Description
Operating Voltage: 2.4V~5.5V
Supply Current
- I
DD=2.1mA at VDD=3.6V
Low Shutdown Current
- I
DD=0.7µA 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
25mW/Ch into 16
Ω at V
DD=3.6V,THD+N=0.04%
20mW/Ch into 32
Ω at V
DD=3.6V,THD+N=0.02%
High PSRR: 90dB at 217Hz
Fast Start-Up Time: 4ms
Integrate the De-pop Circuitry
Thermal Protection
Surface-Mount Packaging
WLCSP1.6x1.6-16
Simplified Application Circuit
APA2177
ROUT
RIN+
SDN
LIN+
LOUT
Stereo
Input
Signal
Shutdown
Control
Stereo
Headphone
GAIN
Gain
Control
HI-Z
Hi-Z
Control
LIN-
RIN-


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