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APA2174 Datasheet(PDF) 1 Page - Anpec Electronics Coropration |
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APA2174 Datasheet(HTML) 1 Page - Anpec Electronics Coropration |
1 / 21 page 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 • Set-Top Boxes • CD /DVD Players • LCDTVs • HTIBs (Home Theater in Box) • Operating Voltage: 2.3V-4.5V • SupplyCurrent - I DD=5mA at VDD=3.3V • Low Shutdown Current - I DD=1µA at VDD=3.3V • Ground Reference Output - No Output Capacitor Required (for DC Blocking) - Save the PCB Space - Reduce the BOM Costs - Improve the Low Frequency Response • Output Voltage Swing Can Reach 2Vrms/Ch into 600 Ω at VDD=3.3V • High PSRR:90dB at 217Hz • Fast Start-Up Time: 500µs • Integrate the De-pop Circuitry • Separate ShutdownFunction forFlexible Applica- tion • Thermal Protection • Surface-Mount Packaging - TQFN4x4-20B (with Enhanced Thermal Pad) - TSSOP-16 - SOP-14 • Lead Free and Green Devices Available (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 |
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