APA3544

APA3541/4 Class AB Stereo Headphone Driver with Mute 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 Applications Portable Digital Audio 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 . Ordering and Marking Information A P A 3 5 4 1 /4 H a nd lin g C o d e T em p. R ange P a ck a g e C o d e P ackage C ode J : P D IP - 8 Y : C h ip F ro m T em p. R ange I : - 4 0 to 8 5 ° C H a n d lin g C o d e TU : Tube K : SOP - 8 TR : Tape & Reel A P A 3 5 4 1 /4 J : A P A 3 5 4 1 /4 XXXXX X X X X X - D a te C o d e A P A 3 5 4 1 /4 K : A P A 3 5 4 1 /4 XXXXX X X X X X - D a te C o d e ANPEC reserves the right to make changes to improve reliability or manufacturability without notice, and advise custo...