Datenblatt-Suchmaschine für elektronische Bauteile |
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TS2012 Datenblatt(PDF) 1 Page - STMicroelectronics |
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TS2012 Datenblatt(HTML) 1 Page - STMicroelectronics |
1 / 30 page December 2007 Rev 1 1/30 30 TS2012 Filter-free stereo 2x2.8W class D audio power amplifer Features ■ Operating range from VCC=2.5V to 5.5V ■ Standby mode active low ■ Output power per channel : 1.35W @5V or 0.68W @ 3.6V into 8 Ω with 1% THD+N max. ■ Output power per channel : 2.2W @5V into 4 Ω with 1% THD+N max. ■ Four gains select : 6, 12, 18, 24 dB ■ Low current consumption ■ PSRR: 70dB typ @ 217Hz with 6dB gain. ■ Fast start-up phase: 1ms ■ Thermal shutdown protection ■ QFN20 4x4mm lead-free package Applications ■ Cellular phone ■ PDA ■ Flat panel TV Description The TS2012 is a stereo fully differential class D power amplifier. Able to drive up to 1.35W into an 8 Ω load at 5V per channel. It achieves outstanding efficiency compared to typical class AB audio amps. The device has four different gain settings utilizing two discrete pins: G0 and G1. Pop & click reduction circuitry provides low on/off switch noise while allowing the device to start within 1ms. Two standby pins (active low) allow each channel to be switched off independently. The TS2012 is available in a QFN20 package in 4x4 mm dimension. Gain Select PWM H Bridge LIN + LIN - G0 G1 LOUT+ LOUT- STBY L STBY R Gain Select PWM H Bridge RIN - RIN + ROUT+ ROUT- Oscillator Standby Control 1 2 5 7 8 11 14 15 16 17 19 20 TS2012IQT - QFN20 (4x4) G1 G0 Lout+ PVCC PGND PVCC Rout+ PGND Lout- Rout- 1 2 4 3 5 67 8 910 11 12 13 14 15 16 17 18 19 20 G1 G0 Lout+ PVCC PGND PVCC Rout+ PGND Lout- Rout- 1 2 4 3 5 67 8 910 11 12 13 14 15 16 17 18 19 20 Pin connections (top view) Block diagram www.st.com |
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