APA3541/4
Class AB Stereo Headphone Driver with Mute
Features
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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
Applications
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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 com-
mon 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 de-
vice is fabricated in a CMOS process and has been
primarily developed for portable digital audio appli-
cations .
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
customers to obtain the latest version of relevant information to verify before placing orders.
Copyright
ANPEC Electronics Corp.
Rev. B.1 - Apr., 2003
1
www.anpec.com.tw
ANPEC [ ANPEC ELECTRONICS COROPRATION ]
