TPA2012D2RTJTG4

TEXAS INSTRUMENTS  TPA2012D2RTJTG4  音频功率放大器, D, 2通道, 1.4 W, 2.5V 至 5.5V, QFN, 20 引脚

The is a 2.1W Stereo Class-D Audio Amplifier with gain select requires only two external components. This filter-free audio amplifier features independent shutdown controls for each channel. The gain can be selected to 6, 12, 18 or 24dB utilizing the G0 and G1 gain select pins. High PSRR and differential architecture provide increased immunity to noise and RF rectification. In addition to these features, a fast start-up time makes the TPA2012D2 class-D amp an ideal choice for both cellular handsets and PDAs. The TPA2012D2 is capable of driving 1.4W/Ch at 5V or 720mW/Ch at 3.6V into 8R. It is also capable of driving 4 a3A9. The TPA2012D2 is thermally limited and may not achieve 2.1W/Ch for 4R. The maximum output power is determined by the ability of the circuit board to remove heat. This amplifier provides thermal and short-circuit protection.

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Only two external components required

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Independent shutdown control for each channel

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Selectable gain of 6, 12, 18 and 24dB

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Internal pull-down resistor on shutdown pins

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High PSRR 77dB at 217Hz

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Fast start-up time 3.5ms

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Low supply current

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Low shutdown current

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Short-circuit and thermal protection

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Green product and no Sb/Br

This device has limited built-in ESD protection, leads should be shorted together or the device placed in conductive foam during storage or handling to prevent electrostatic damage to the MOS gates.