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AX5689 - Digital Audio Converter and Amplifier Controller

Description

The AX5689 is a 4-channel BTL audio amplifier controller IC with digital inputs and CMOS level PWM outputs.

It enables high order digital control loops, with feedback after Class-D output filters.

Embedded low-latency ADCs are used to close the loop behind the output filter in the digital domain.

Features

  • General features: - 4-channel BTL digital Class-D amplifier controller with digital inputs - 8 differential low-latency ADCs with a 115 dB dynamic range - 8 programmable digital loop-filter slices - 8 CMOS level PWM outputs, configurable as 4 BTL channels - Feedback loop possible after the output filter, across the loudspeaker nodes - Configurable interconnections between slices and ADCs for versatility and MIMO control - Volume control and soft mute - Dynamic loop control with programmabl.

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Full PDF Text Transcription

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AX5689 Digital Audio Converter and Amplifier Controller Features ◼ General features: - 4-channel BTL digital Class-D amplifier controller with digital inputs - 8 differential low-latency ADCs with a 115 dB dynamic range - 8 programmable digital loop-filter slices - 8 CMOS level PWM outputs, configurable as 4 BTL channels - Feedback loop possible after the output filter, across the loudspeaker nodes - Configurable interconnections between slices and ADCs for versatility and MIMO control - Volume control and soft mute - Dynamic loop control with programmable ramp enabling pop-free mode transitions ◼ Serial audio input / output - I2S / TDM Serial Audio Interface with 16 downstream and 8 upstream channels - Input sample rate: 32 to 768 kHz - 16 to 32-bit supported audio formats ◼ Control inte
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