General Description

The APA0713 is a bridged-tied load (BTL) audio power amplifier developed especially for low-voltage applications where internal speakers operation is required. Operating with a 5V supply, the APA0713 can deliver 1.1W of continuous power into a BTL 8W load at 10 THD+N throughout voice band frequencies. Although this device is characterized out to 20kHz, its operation is optimized for narrow band applic ati ons s uc h as wireles s communications. The BTL configuration eliminates the need for external coupling capacitors on the output in most applications, which is particularly important for small battery-powered equipment. This device features a shutdown mode for power-sensitive applications with special depop circuitry to eliminate speaker noise when exiting shutdown mode. The APA0713 is available in8-pin SOP.

Features

• Operating Voltage : 2.6V-5.5V

• APA0713 Compatible with TPA751

• Supply Current

– IDD=1.3mA at VDD=5V ,BTL mode

– IDD=0.9mA at VDD=3.3V ,BTL mode

• Low Shutdown Current

– IDD=0.1mA

• Low Distortion

– 630mW, at VDD=5V, BTL, RL=8W THD+N=0.15

– 280mW, at VDD=3.3V, BTL, RL=8W THD+N=0.15

• Output Power at 1 THD+N

– 900mW, at VDD=5V, BTL, RL=8W

– 400mW, at VDD=3.3V, BTL, RL=8W at 10 THD+N

– 1.1W at VDD=5V, BTL, RL=8W

– 480mW at VDD=3.3V, BTL, RL=8W

• Depop Circuitry Integrated

• Thermal Shutdown Protection and Over Current Protection Circuitry

• High supply voltage ripple rejection

• Surface-Mount Packaging

– 8 pin SOP

• Lead Free Available (RoHS Compliant)

Applications

• Mobil Phones

• PDAs

• Digital Cameras

• Portable Electronic Devices