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TS482IST 데이터시트(PDF) 1 Page - STMicroelectronics |
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TS482IST 데이터시트(HTML) 1 Page - STMicroelectronics |
1 / 26 page Rev 2 November 2005 1/26 26 TS482 100mW Stereo Headphone Amplifier ■ Operating from Vcc=2V to 5.5V ■ 100mW into 16 Ω at 5V ■ 38mW into 16 Ω at 3.3V ■ 11.5mW into 16 Ω at 2V ■ Switch ON/OFF click reduction circuitry ■ High power supply rejection ratio: 85dB at 5V ■ High signal-to-noise ratio: 110dB(A) at 5V ■ High crosstalk immunity: 100dB (F=1kHz) ■ Rail-to-rail input and output ■ Unity-gain stable ■ Available in SO-8, MiniSO-8 & DFN8 Description The TS482 is a dual audio power amplifier able to drive a 16 or 32 Ω stereo headset down to low voltages. It is delivering up to 100mW per channel (into 16 Ω loads) of continuous average power with 0.1% THD+N from a 5V power supply. The unity gain stable TS482 can be configured by external gain-setting resistors. Applications ■ Stereo headphone amplifier ■ Optical storage ■ Computer motherboard ■ PDA, organizers & notebook computers ■ High-end TV, set-top box, DVD players ■ Sound cards Order Codes Typical application schematic TS482IST - MiniSO-8 TS482ID, TS482IDT - SO-8 5 OUT (1) 6 7 8 4 3 2 1 VIN+ (1) GND VCC OUT (2) VIN- (2) VIN+ (2) VIN- (1) 5 OUT (1) 6 7 8 4 3 2 1 VIN+ (1) GND VCC OUT (2) VIN- (2) VIN+ (2) VIN- (1) + - + - 8 4 1 7 2 3 5 6 TS482 3.9k 3.9k 3.9k 3.9k 100k 100k Vcc Vcc 220µF 220µF Right In Left In + RL=32Ohms + RL=32Ohms + 1µF + 2.2µF + 2.2µF + Cs 1µF Cin1 Cin2 Rin1 Cout2 Cout1 Rin2 Rfeed1 Rfeed2 Cb Rpol Rpol + - + - 8 4 1 7 2 3 5 6 TS482 3.9k 3.9k 3.9k 3.9k 100k 100k Vcc Vcc 220µF 220µF Right In Left In + RL=32Ohms + RL=32Ohms + 1µF + 2.2µF + 2.2µF + Cs 1µF Cin1 Cin2 Rin1 Cout2 Cout1 Rin2 Rfeed1 Rfeed2 Cb Rpol Rpol TS482IQT - DFN8 1 2 3 4 5 8 7 6 VIN + (1) GND VIN + (2) Vcc OUT (2) OUT (1) VIN - (2) VIN - (1) 1 2 3 4 5 8 7 6 VIN + (1) GND VIN + (2) Vcc OUT (2) OUT (1) VIN - (2) VIN - (1) Part Number Temperature Range Package Packing Marking TS482ID/IDT -40, +85°C SO-8 Tube or Tape & Reel 482I TS482IST miniSO-8 Tape & Reel TS482IQT DFN8 www.st.com |
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