General Description

The APA4835 is a monolithic integrated circuit , which provides DC volume control , and a stereo bridged audio power amplifiers capable of producing 2.8W (2.2W) into 3Ω with less than 10 (1.0) THD+N. APA4835 includes a DC volume control , stereo bridge-tied and single-ended audio power amplifiers , stereo docking outputs , and a selectable gain control , that makes it optimally fittable for notebook PC , multimedia monitors , and other portable applications.

Features

• Operating Voltage : 3.3V to 5V

• Stereo switchable bridged/single-ended power amplifiers

• DC Volume Control Interface , 0dB to –105dB

• Low Supply Current , IDD = 13mA at Stereo BTL

• Low Shutdown Current , IDD = 0.7µA

• Bridge-Tied Load (BTL) or Single-Ended-(SE) Modes Operation

• Output Power at 1 THD+N , VDD=5V

– 2.2W/Ch (typ) into a 3 Ω Load

– 2.0W/Ch (typ) into a 4 Ω Load

– 1.2W/Ch (typ) into a 8 Ω Load

• Output Power at 10 THD+N , VDD=5V

– 2.8W/Ch (typ) into a 3 Ω Load

– 2.3W/Ch (typ) into a 4 Ω Load

– 1.5W/Ch (typ) into a 8Ω Load

• Single-ended mode at 1.0 THD+N

– 95mW/Ch (typ) into 32Ω Load

• Depop Circuitry Integrated

• System Beep Detect

• Thermal shutdown protection circuitry

• High supply voltage ripple rejection

• Low Crossover Distortion

• PC99 Compliant

• 28-pin TSSOP-P (with enhanced thermal pad) power package available

Applications

• Notebook and Desktop Computers

• Multimedia Monitors

• Portable Applications