APA2604C

APA2604C 3W Stereo Class-D Audio Power Amplifier and Class AB Headphone Driver (DC Volume Control, UVP, AGC) Features Operating Voltage: 3.3V-5.8V High Efficiency 85% at PO=3W, 4Ω Speaker, V =5V, AGC Disable DD Filter-Free Class-D Amplifier Low Shutdown Current - IDD=1µA at VDD=5V 64 Steps Volume Adjustable from -80dB to +20dB by DC Voltage with Hysteresis AGC (Non-Clip) Function - Disable : 0.45VDD~VDD, Floating - Max, Power : Internal set limit level AGC<0.27VDD Smooth mute activation deactivation UVP Function - Disable : Floating Output Power at THD+N=1% BTL Mode - 2.4W at V =5V, DD RL=4Ω - 1.4W at V =5V, DD RL=8Ω SE Mode - 70mW at V =5V, DD RL=32Ω Output Power at THD+N=10% - 3W at VDD=5V, RL=4Ω - 1.7W at VDD=5V, RL=8Ω Less External Components Required Two Output Modes Allowable with BTL and SE Modes Selected by SE/BTL Pin Input Signal and Headphone Output Signal in Phase Thermal and Over-Current Protections with Auto-Recovery Power Enhanced Packages SSOP-24(236mil), QFN4x4-20A Lead Free and Green Devices Available (RoHS Compliant) General Description The APA2604C is a stereo, high efficiency, filter-free ClassD audio amplifier available in a SSOP-24 and QFN4x420A packages. The APA2604C provide the precise DC volume control, the gain range is from +20dB (V = VOLUME 0V) to -80dB (V =5V) with 64 steps precise control. It’s easy to get VOLUME the suitable amplifier’s gain with the 64 steps gain setting. The filte...