General Description

The MAX9759 mono class D, audio power amplifier provides class AB amplifier audio performance with the benefits of class D efficiency, eliminating the need for a heatsink and extending battery life. The MAX9759 delivers up to 3.2W of continuous power into a 4Ω load while offering greater than 90 efficiency. Maxim’s next-generation, low-EMI modulation scheme allows the amplifier to operate without an external LC filter while still meeting FCC EMI-radiated emission levels.

Features

♦ 3.2W into 4Ω Load (THD+N = 10)

♦ Filterless Amplifier Passes FCC Radiated Emissions Standards with 7.6cm of Cable

♦ 92 Efficiency

♦ High PSRR (81dB at 1kHz)

♦ Low 0.02 THD+N

♦ External Clock Synchronization for Multiple, Cascaded Maxim Class D Amplifiers

♦ 3.0V to 5.5V Single-Supply Operation

♦ Pin-Selectable Gain (6dB, 12dB, 18dB, 24dB)

♦ Integrated Click-and-Pop Suppression

♦ Low Quiescent Current (8.4mA)

♦ Low-Power Shutdown Mode (10µA)

♦ Mute Function

♦ Short-Circuit and Thermal-Overload Protection

♦ Available in Thermally Efficient Packages

    16-Pin TQFN (4mm x 4mm x 0.8mm)

    16-Pin TSSOP

Applications

    Cell Phones/PDAs

    Notebook PCs

    Portable DVD Players

    Flat-Panel PC Monitors

    LCD TVs

    LCD Projectors