AD5265A
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Preliminary
2.5W/CH Stereo Filter-less Class-D Audio Amplifier with Headphone Driver
Description
The AD5265A is a stereo, filter-less class-D audio amplifier with headphone driver. Operating with 5.0V loudspeaker driver supply, it can deliver 2.5W/CH output power into 4 Ω loudspeaker within 10% THD+N and 120m W/CH output power into 16Ω headphone within 1% THD+N. The AD5265A has two volume control modes by setting MODE pin. While MODE pin is set logic high, AD5265A is in DC volume control mode with 31-step volume gain from -38 d B to +20d B, adjusted by the DC voltage applied on G0 pin. Otherwise, AD5265A is the 4-step volume gain mode with +6d B, +12d B, +18d B, and +24d B gain, selected by setting G0 and G1 pins. The two volume adjustment modes are designed to fit the different volume control requirements in various applications. Not only the stereo class-D amplifier, AD5265A also has a fixed gain (-1V/V) stereo class-AB headphone driver. The...
