APA2070

APA2070 Stereo 2.6W Audio Power Amplifier (with DC Volume Control) Features Low Operating Current about 9mA (typical) Improved Depop Circuitry to Eliminate Turn-on and Turn-off Transients in Outputs 32-Step Volume Adjustable by DC Voltage with Hysteresis Output Power at 1% THD+N - 2.4W, at VDD=5V, BTLMode, RL=3Ω - 2W, at VDD=5V, BTLMode, RL=4Ω at 10% THD+N - 3.1W, at VDD=5V, BTLMode, RL=3Ω - 2.6W, at VDD=5V, BTLMode, RL=4Ω Two Output Modes: BTL and SE Modes Selected by SE/BTL Pin Low Current Consumption in Shutdown Mode (1µA, typical) Short Circuit Protection Thermal Shutdown Protection and Over-Current Protection Circuitry The OUTP Signal and the INN Signal are Outphase Power Enhanced Package (DIP-16/DIP-16A) Lead Free and Green Devices Available (RoHS Compliant) General Description The APA2070 is a monolithic integrated circuit, which provides precise DC volume control, and a stereo bridged audio power amplifiers capable of producing 2.6W (2W) into 4Ω with less than 10% (1.0%) THD+N. The attenuator range of the volume control in APA2070 is from 18dB (VVOLUME=0V) to -80dB (VVOLUME=3.54V) with 32 steps. The advantage of internal gain setting can be less components and PCB area. Both the depop circuitry and the thermal shutdown protection circuitry are integrated in the APA2070, that reduce pops and clicks noise during power up or shutdown mode operation. It also improves the power off pop noise and protects the chip being destroyed by over temperature and short curr...