General Description

The APA4801 is an integrated class AB stereo headphone amplifier contained in an SO-8 or a DIP-8 plastic package with Mute feature . Besides the common Mute feature , the APA4801 further integrates a voltage divider inside the chip . Thus , the external resistors can be eliminated . The device has been primarily developed for portable digital audio applications .

Features

• Operating Voltage

Single Supply 3V to 7V

Dual Supply ±1.5V to ± 3.5V

• High Signal-to-Noise Ratio 100dB

• High Slew Rate 5V/ µs

• Low Distortion -65dB

• Output Power at 10 THD+N

into 8Ω 280mW

into 16Ω 160mW

• Large Output Voltage Swing

• Excellent Power Supply Ripple Rejection

• Flexible Mute Function

• Integrated Voltage Divider (VDD/2) to Eliminate External Resistors

• Low Power Consumption

• Short-circuit Elimination

• Wide Temperature Range

• No Switch ON/OFF Clicks

• Available in 8 pin SOP or DIP Package

Applications

• Portable Digital Audio

• Personal Computers

• Microphone Preamplifier