AK7844 Overview
THE AK7844 is Stereo Class-D amplifier for driving Piezo-Electric Speakers. Built-in Boost DCDC converter generates adequate high voltage for driving Piezo Speakers from Li-Ion battery. AKM state-of-the-art filter-less solution eliminates LC-filters, which are normally required at Class-D outputs. That contributes to total space saving. Class-D operation ensures higher power efficiency, and couple with Piezo Speaker that is low-powerconsumption and low-profile figure. The AK7844 is very applicable for cellular phones with piezo speakers.
AK7844 Key Features
- Class-D Amplifier ：
- Piezo-Electric Speaker Driver
- Single-ended analog Input
- BTL output
- Output voltage = 8Vrms @VDD1=8.75V
- Filter-less solution
- Stereo mode
- Pop noise suppressor
- Output short protection
- Boost DCDC Converter ：