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 .

特性 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 8? 280mW

into 16? 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