APA3541 General Description
The APA3541/4 is an integrated class AB stereo headphone driver contained in an SO-8 or a DIP-8 plastic package with Mute feature . Besides the common Mute feature , the APA3541/4 further integrates a voltage divider inside the chip . Thus , the external resistors can be eliminated . The APA3541 has a fixed gain of 0dB and the APA3544 has a fixed gain of 6dB so that external gain setting is unnecessary. The device is fabricated in a CMOS process and has been primarily developed for portable digital audio applications .
APA3541 Features
• High Signal-to-Noise Ratio
• High Slew Rate
• Low Distortion
• Large Output Voltage Swing
• Flexible Mute Function
• Excellent Power Supply Ripple Rejection
• Low Power Consumption
• Short-circuit Elimination
• Wide Temperature Range
• No Switch ON/OFF Clicks
• Integrated Voltage Divider (VDD/2) to Eliminate
External Resistors
APA3541 Typical Application
• Portable Digital Audio
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