AX5689 Overview
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.
AX5689 Key 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