Maxim MAX13331EVKIT+

AB 类耳机，2-通道（立体声）

Overview

The MAX13330/MAX13331EVKIT+ 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 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/MAX13331EVKIT+ 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 short-circuit 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/MAX13331EVKIT+ are specified from -40°C to +105°C AEC-Q100 Level 2 automotive temperature range and are available in a 16-pin QSOP package.

Features

DirectDrive® Series
Box Package
Class AB Amplifier Type
125mW x 2 @ 32Ohm Max Output Power x Channels @ Load
4V ~ 5.5V Voltage - Supply
Fully Populated Board Type
MAX13331 Utilized IC / Part
Board(s) Supplied Contents