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2.8 W滤波器单级D音频功率放大器TS4962
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Description The TS4962 is a differential class-D BTL power amplifier. It can drive up to 2.2 W into a 4 Ω load and 1.4 W into an 8 Ω load at 5 V. It achieves outstanding efficiency （88% typ.） compared to standard AB-class audio amps.
The gain of the device can be controlled via two external gain setting resistors. Pop & click reduction circuitry provides low on/off switch noise while allowing the device to start within 5 ms. A standby function （active low） enables the current consumption to be reduced to 10 nA typica
Features ■ Operating from VCC = 2.4 V to 5.5 V ■ Standby mode active low ■ Output power： 2.8 W into 4 Ω and 1.7 W into 8 Ω with 10% THD+N maximum and 5 V power supply ■ Output power： 2.2 W at 5 V or 0.7 W at 3.0 V into 4 Ω with 1% THD+N maximum ■ Output power： 1.4 W at 5 V or 0.5 W at 3.0 V into 8 Ω with 1% THD+N maximum ■ Adjustable gain via external resistors ■ Low current consumption 2 mA at 3 V ■ Efficiency： 88% typical ■ Signal to noise ratio： 85 dB typical ■ PSRR： 63 dB typical at 217 Hz with 6 dB gain ■ PWM base frequency： 280 kHz ■ Low pop & click noise ■ Thermal shutdown protection ■ Available in DFN8 3 x 3 mm package
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