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STMicroelectronics Introduces High-quality Audio Amplifier for Mobile Equipment STMicroelectronics has introduced a 1.2W audio amplifier with one differential mono input, for use in mobile phones, laptops, PDAs and portable audio devices.The TS4994 is a fully differential audio power amplifier capable of delivering 1.2W of continuous RMS power into an 8 ohm load at 5V, with a total harmonic distortion of 1%, measured at 1KHz. The differential design means the part has good noise immunity with an 85dB common mode rejection ratio and 100dB power supply rejection ratio, both at 217Hz with grounded inputs. The part has also been designed to avoid pops and clicks.
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