The power management ASIC is developed for battery powered implanted hearing aids. The ASIC converts the power of both single or stacked ZnO2 or Li-Ion batteries to power the audio capture chain including ADC, a class D audio driver chain and the digital audio processing. It also manages the inductive communication between the hearing aid and the implant.
- Versatile high-efficiency buck/boost DC-DC converter
- Audio capture chain (amps and 12-bit ADC)
- Audio quality class D output driver
- Battery safety features and low leakage
- Low power consumption
- 0.18um CMOS technology