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MAX98306：Stereo 3.7W Class D Amplifier

Big 3.7W/Channel Power in a Small, 14-Pin TDFN Package

The MAX98306 stereo 3.7W Class D amplifier provides Class AB audio performance with Class D efficiency. This device offers five selectable gain settings (6dB, 9dB, 12dB, 15dB, and 18dB) set by a single gain-select input (GAIN). Active emissions limiting, edge-rate, and overshoot control circuitry combined with a filterless spread-spectrum modulation scheme (SSM) provide excellent EMI performance while eliminating the need for output filtering found in traditional Class D devices. These features reduce application component count. The IC's 2.0mA quiescent current with a 3.7V supply extends battery life in portable applications. The IC is available in a 14-pin TDFN (3mm x 3mm x 0.75mm) package specified over the extended -40°C to +85°C temperature range.

Key Features Output Power 3.7W at 3Ω, 10% THD, 1.7W at 8Ω, 10% THD, with 5V Supply Passes EMI Limit Unfiltered with Up to 12in of Speaker Cable High 83dB PSRR at 217Hz Spread-Spectrum Modulation and Active Emissions Limiting Five Pin-Selectable Gains Excellent Click-and-Pop Suppression Thermal and Overcurrent Protection Low-Current Shutdown Mode Space-Saving, 3mm x 3mm x 0.75mm, 14-Pin TDFN

MAX98306: Typical Application Circuit Applications/Uses Accessory Speakers Cellular Phones MP3 Players Portable Audio Players Smartphones Tablets VoIP Phones

DataSheet

Parametrics

Design kits & evaluation modules

• MAX98306EVKIT

Quality and Environmental Data

• MAX98306.pdf

Ordering Information