MAX4410 Datasheet, PDF (1/20 Pages) Maxim Integrated Products – 80mW, DirectDrive Stereo Headphone Driver with Shutdown

19-2386; Rev 2; 10/02
80mW, DirectDrive Stereo Headphone Driver
with Shutdown
General Description
The MAX4410 stereo headphone driver is designed for
portable equipment where board space is at a
premium. The MAX4410 uses a unique, patented,
DirectDrive architecture to produce a ground-refer-
enced output from a single supply, eliminating the need
for large DC-blocking capacitors, saving cost, board
space, and component height.
The MAX4410 delivers up to 80mW per channel into a
16Ω load and has low 0.003% THD + N. A high power-
supply rejection ratio (90dB at 1kHz) allows this device to
operate from noisy digital supplies without an additional
linear regulator. The MAX4410 includes ±8kV ESD pro-
tection on the headphone outputs. Comprehensive click-
and-pop circuitry suppresses audible clicks and pops on
startup and shutdown. Independent left/right, low-power
shutdown controls make it possible to optimize power
savings in mixed mode, mono/stereo applications.
The MAX4410 operates from a single 1.8V to 3.6V supply,
consumes only 7mA of supply current, has short-circuit
and thermal overload protection, and is specified over the
extended -40°C to +85°C temperature range. The
MAX4410 is available in a tiny (2mm x 2mm x 0.6mm),
16-bump chip-scale package (UCSP™) and a 14-pin
TSSOP package.
Applications
Notebooks
Cellular Phones
PDAs
MP3 Players
Web Pads
Portable Audio Equipment
Features
o No Bulky DC-Blocking Capacitors Required
o Ground-Referenced Outputs Eliminate DC-Bias
Voltages on Headphone Ground Pin
o No Degradation of Low-Frequency Response Due
to Output Capacitors
o 80mW Per Channel into 16Ω
o Low 0.003% THD + N
o High PSRR (90dB at 1kHz)
o Integrated Click-and-Pop Suppression
o 1.8V to 3.6V Single-Supply Operation
o Low Quiescent Current
o Independent Left/Right, Low-Power
Shutdown Controls
o Short-Circuit and Thermal Overload Protection
o ±8kV ESD-Protected Amplifier Outputs
o Available in Space-Saving Packages
16-Bump UCSP (2mm x 2mm x 0.6mm)
14-Pin TSSOP
Ordering Information
PART
TEMP RANGE
PIN/BUMP-
PACKAGE
MAX4410EBE-T*
MAX4410EUD
-40°C to +85°C
-40°C to +85°C
16 UCSP-16
14 TSSOP
*Future product—contact factory for availability.
Functional Diagram
LEFT
AUDIO
INPUT
MAX4410
SHDNL
SHDNR
RIGHT
AUDIO
INPUT
UCSP is a trademark of Maxim Integrated Products, Inc.
Pin Configurations and Typical Application Circuit appear
at end of data sheet.
________________________________________________________________ Maxim Integrated Products 1
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.