General Description

The MAX9723 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 MAX9723 operates from a single 1.8V to 3.6V power supply and includes features that reduce external component count, system cost, board space, and improves audio reproduction.

Features

● 62mW, DirectDrive Headphone Amplifier Eliminates Bulky DC-Blocking Capacitors

● 1.8V to 3.6V Single-Supply Operation

● Integrated 32-Level Volume Control

● High 90dB PSRR at 1kHz

● Low 0.006 THD+N

● Industry-Leading Click-and-Pop Suppression

● ±8kV HBM ESD-Protected Headphone Outputs

● Short-Circuit and Thermal-Overload Protection

● Low-Power Shutdown Mode (5μA)

● Software-Enabled Bass Boost (BassMax)

● I2C/SMBus-Compatible Interface

● Available in Space-Saving, Thermally Efficient Packages:

    • 16-Bump UCSP (2mm x 2mm x 0.62mm)

    • 16-Pin Thin QFN (4mm x 4mm x 0.8mm)

Applications

● PDA Audio

● Portable CD Players

● Mini Disc Players

● MP3-Enabled Cellular

● Phones

● MP3 Players