TAS2559YZT

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The TAS2559YZT is a bridge-tied-load Class D audio amplifier that is designed for mobile applications trying to meet low-power and low-height requirements. It has integrated power correction loops for the supply and ground voltages which keep the audio clean even under tough conditions. As a full system-on-chip, the TAS2559YZT provides a high-efficiency, low-noise amplifier as well as a fully programmable processor to implement different audio processing functions. This makes it an ideal solution for portable devices looking to go wireless.

In terms of applications, the TAS2559YZT can be used to power up to 8 omni-directional microphones in array configurations, as well as providing stereo audio output with up to 2W of power into 4 ohm speakers. It also supports digital audio streaming and Bluetooth audio. While it can handle data rates up to 48 kHz, this is most suitable for use within devices such as personal music players and portable gaming systems.

The TAS2559YZT also benefits from an integrated voice processor that can be used for specific audio processing tasks such as noise cancellation and beam-forming. This processor is also highly configurable and can be programmed to handle a variety of tasks such as speech recognition, voice command decoding, and acoustic echo cancellation.

In terms of its audio performance, the TAS2559YZT can produce a maximum output power of 48 wrms (at 8 ohm speaker loads). The total harmonic distortion is kept to 0.03%, while the signal-to-noise ratio is around 87 dB. The overall frequency response is also very flat, being rated as what is called ‘IR compensation class II’, while the slight boost in the lower frequencies compensates for any losses in this area.

The TAS2559YZT is driven by an internal class-D amplifier which is configured to produce a digital PWM signal. This PWM signal is then converted into an analog audio signal by a sophisticated filter network. The filter network is divided into two sections, an analog output filter which ensures the audio is free of any unwanted frequencies, and a power correction loop which boosts the audio signal to compensate for any losses in the class-D amplifier.

Overall, the TAS2559YZT is an ideal choice for audio applications which require low power, high efficiency, and low profile components. Its integrated processor and configurable filter network allow for the implementation of complex audio functions and the architecture allows for a high degree of flexibility. This makes it ideal for a variety of audio applications including personal music players, portable gaming systems, and audio arrays.

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