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 (V_DD/2) to Eliminate
External Resistors


Application

• Portable Digital Audio


Specifications

Symbol	Parameter	Rating	Unit
VDD	Supply Voltage Range	7	V
tSC(O)	Output Short-circuit Duration, at TA=25°C, Ptot=1W	20	S
TA	Operating Ambient Temperature range	-40 to 85	°C
TJ	Maximum Junction Temperature	150	°C
TSTG	Storage Temperature Range	-65 to +150	°C
TS	Soldering Temperature , 10 seconds	300	°C
VESD	Electrostatic Discharge	-3000 to 3000 *1	V

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 .