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MAX13330

Maxim Integrated Products
Part Number MAX13330
Manufacturer Maxim Integrated Products
Description Automotive DirectDrive Headphone Amplifiers
Published Jul 18, 2009
Detailed Description 19-4341; Rev 0; 10/08 www.DataSheet4U.com Automotive DirectDrive Headphone Amplifiers with Output Protection and Diagn...
Datasheet PDF File MAX13330 PDF File

MAX13330
MAX13330

Overview
19-4341; Rev 0; 10/08 www.
DataSheet4U.
com Automotive DirectDrive Headphone Amplifiers with Output Protection and Diagnostics General Description The MAX13330/MAX13331 stereo headphone amplifiers are designed for automotive applications requiring output short-circuit and ESD protection to battery/ground with diagnostics.
These devices use Maxim’s unique, patented † DirectDrive ® architecture to produce a ground-referenced output from a single supply, eliminating the need for large DC-blocking capacitors, saving board space and component height.
The gain of the amplifier is set internally (-1.
5V/V) on the MAX13330 or adjusted externally with resistors on the MAX13331.
The MAX13330/MAX13331 deliver 120mW per channel into a 16Ω load or 135mW into a 32Ω load and have a low 0.
01% THD+N.
Low output impedance and the efficient integrated charge pump allows the device to drive loads as low as 8Ω, enabling the use of small loudspeakers.
An 80dB at 217Hz PSRR allows these devices to operate from noisy digital supplies without an additional linear regulator.
These devices include ±15kV Human Body Model ESD protection and shortcircuit protection up to +45V at the headphone outputs.
Comprehensive click-and-pop circuitry suppresses audible clicks and pops on startup and shutdown.
A low-power shutdown mode reduces the supply current to 3µA (typ).
The MAX13330/MAX13331 are specified from -40°C to +105°C AEC-Q100 Level 2 automotive temperature range and are available in a 16-pin QSOP package.
♦ 4V to 5.
5V Single-Supply Operation ♦ 2MHz Charge Pump Prevents AM Radio Interference ♦ Ground-Referenced Outputs Eliminate Bulky DCBlocking Capacitors ♦ Short-to-Ground and Battery (VBAT up to +45V) Output Protection, Load Dump Protection ♦ Short-Circuit Diagnostic Output ♦ Adjustable Gain (MAX13331) or Fixed -1.
5V/V Gain (MAX13330) ♦ 135mW per Channel into 32Ω at 1% THD+N ♦ Low 0.
01% THD+N ♦ Integrated Click-and-Pop Suppression ♦ High PSRR Eliminates LDO ♦ No Degradation of Low-Frequency Re...


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