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MAX98314 - Mono 3.2W Class D Amplifier

Description

The MAX98314 mono 3.2W Class D amplifier provides Class AB audio performance with Class D efficiency.

This device offers five selectable gain settings (0dB, 3dB, 6dB, 9dB, and 12dB) set by a single gain-select input (GAIN).

Features

  • S Integrated Input Coupling Capacitors with Excellent Linearity.
  • fC = 100Hz (6dB).
  • fC = 200Hz (12dB) S Low Quiescent Current.
  • 0.95mA at 3.7V.
  • 1.2mA at 5.0V S Delivers High Output Power at 10% THD+N.
  • 3.2W into 4I, VPVDD = 5V.
  • 960mW into 8I, VPVDD = 3.7V S Ultra-Low Noise: 19µV S Eliminates Output Filtering Requirement.
  • Spread Spectrum and Active Emissions Limiting S Click-and-Pop Suppression S Thermal and Overcurrent Protection S Low Current Shutdown Mod.

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Full PDF Text Transcription

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www.DataSheet.co.kr 19-6124; Rev 0; 11/11 EVALUATION KIT AVAILABLE MAX98314 Mono 3.2W Class D Amplifier with Integrated Input Coupling Capacitors General Description The MAX98314 mono 3.2W Class D amplifier provides Class AB audio performance with Class D efficiency. This device offers five selectable gain settings (0dB, 3dB, 6dB, 9dB, and 12dB) set by a single gain-select input (GAIN). Active emissions limiting (AEL) edge rate and overshoot control circuitry and a filterless spread-spectrum modulation (SSM) scheme greatly reduce EMI and eliminate the need for output filtering found in traditional Class D devices. The IC’s low 0.95mA at 3.7V, 1.2mA at 5.0V quiescent current extends battery life in portable applications.
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