TPA0223

具有耳机驱动的 2W 单声道音频功率放大器

The is a 2-W mono bridge-tied-load BTL amplifier designed to drive speakers with as low as 4- speaker.

The gain of the input stage is set by the user-selected input resistor and a 50-k/ RI in BTL mode. The input terminals, high-impedance CMOS inputs, can be used as summing nodes.

The TPA0223 is available in the 10-pin thermally-enhanced MSOP package DGQ and operates over an ambient temperature range of –40°C to 85°C.

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Ideal for Notebook Computers, PDAs, and Other Small Portable Audio Devices

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2 W Into 4- From 5-V Supply

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0.6 W Into 4- From 3-V Supply

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Stereo Head Phone Drive

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Separate Inputs for the Mono BTL Signal and Stereo SE Left/Right Signals

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Wide Power Supply Compatibility

    3 V to 5 V

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Meets PC99 Desktop Specs Target

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Low Supply Current

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11 mA Typical at 5 V

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10 mA Typical at 3 V

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Shutdown Control ...1 uA Typical

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Shutdown Pin Is TTL Compatible

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–40°C to 85°C Operating Temperature Range

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Space-Saving, Thermally-Enhanced MSOP Packaging