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MAX9726

Maxim Integrated Products
Part Number MAX9726
Manufacturer Maxim Integrated Products
Description Headphone Amplifier
Published Oct 19, 2006
Detailed Description www.DataSheet4U.com 19-0627; Rev 0; 9/06 DirectDrive, Headphone Amplifier with BassMax, I2C, Volume and Gain Control G...
Datasheet PDF File MAX9726 PDF File

MAX9726
MAX9726

Overview
www.
DataSheet4U.
com 19-0627; Rev 0; 9/06 DirectDrive, Headphone Amplifier with BassMax, I2C, Volume and Gain Control General Description The MAX9726 stereo, DirectDrive™, headphone amplifier with BassMax and volume control is ideal for portable audio applications where space is at a premium and performance is essential.
The MAX9726 operates from a single 2.
7V to 5.
5V power supply and includes features that reduce external component count, system cost, board space, and offer improved audio reproduction.
High 85dB PSRR makes the MAX9726 ideal for direct connection to a battery-powered supply and eliminates the need for a dedicated LDO.
The MAX9726 features Maxim’s industry-leading click-and-pop suppression circuitry, which reduces/eliminates audible transients during power-up and power-down.
The headphone amplifier uses Maxim’s patented † DirectDrive architecture that produces a ground-referenced output from a single supply, eliminating the need for large DC-blocking capacitors.
The headphone amplifiers deliver 105mW into a 32Ω load and feature low 0.
02% THD+N.
The BassMax feature boosts the bass response of the amplifier, improving audio reproduction when using inexpensive headphones.
The integrated volume control features 64 discrete volume levels, eliminating the need for an external potentiometer.
External resistors set the MAX9726’s overall gain allowing for custom gain settings.
BassMax and the volume control are enabled through the I2C/SMBus™-compatible interface.
Shutdown can be controlled through the hardware or software interface.
The MAX9726 consumes only 5.
5mA of supply current, provides short-circuit and thermal-overload protection, and is specified over the -40°C to +85°C extended temperature range.
The MAX9726 is available in a tiny (2mm x 2.
5mm x 0.
62mm) 20-bump chip-scale package (UCSP™) and a 20-pin TQFN package (4mm x 4mm x 0.
75mm).
Features ♦ 105mW DirectDrive Headphone Amplifier Eliminates Bulky DC-Blocking Capacitors ♦ 2.
7V to 5.
5V Single-Supp...


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