APA2172 Ver la hoja de datos (PDF) - Anpec Electronics
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APA2172 Datasheet PDF : 22 Pages
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APA2172
Stereo, Differential Input Cap-Free Line Driver
Features
General Description
• Operating Voltage: 2.3V~5.5V
• Differential Input
• Ground Reference Output
- No Output Capacitor Required (for DC Blocking)
- Save the PCB Space
- Reduce the BOM Costs
- Improve the Low Frequency Response
• Low Noise and THD+N
- SNR > 108dB
- Noise < 8µVrms
- THD+N < 0.02% at 20Hz~20kHz
• Output Voltage Swing Can Reach 2.1Vrms/Ch into
2.5kΩ at VDD=3.3V
• High PSRR: 80dB at 217Hz
• Fast Start-up Time: 500µs
• Integrate the De-Pop Circuitry
• Thermal and Short-Circuit Protection
• Surface-Mount Packaging
- SOP-14
- TSSOP-14
• Lead Free and Green Devices Available
(RoHS Compliant)
Applications
The APA2172 is a stereo, differential input, single supply,
and cap-free line driver, which is available in SOP-14 and
TSSOP-14 packages.
The APA2172 is 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 immu-
nity to noise and RF rectification. APA2172 has shutdown
and under-voltage detector function for Depop solution.
The APA2172 is capable of driving 2.1Vrms at 3.3V into
2.5kΩ load, and provides short-circuit and thermal pro-
tection.
Simplified Application Circuit
Stereo
Input Signal
APA2172
Stereo
Line-Out
Signal
• Set-Top Boxes
• CD/DVD Players
• LCD TVs
• HTIBs (Home Theater in Box)
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.8 - Aug., 2013
www.anpec.com.tw
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