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Home » NEWEST Products » New by Manufacturer » Maxim Integrated » Maxim MAX98502 Class D Audio Amplifier
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Maxim MAX98502 Class D Audio Amplifier
Maxim MAX98502 Class D Audio Amplifier

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Maxim MAX98502 Class D Audio Amplifier

Maxim Integrated MAX98502 high-efficiency 2.2W Class D Audio Amplifier features an integrated boost converter to deliver a constant output power over a wide range of battery supply voltages. The boost converter operates at 2MHz, requiring only a small (2.2µH) external inductor and capacitor. The automatic level control has a battery tracking function that reduces the output swing as the supply voltage drops, preventing collapse of battery voltage. The amplifier has differential inputs and an internal fully differential design. The MAX98502 also features three gain settings (6dB, 15.5dB, and 20dB) that are selectable with a logic input. MAX98502 evaluation kit (EV kit) is a fully assembled and tested circuit board that uses the MAX98502 boosted Class D amplifier to drive a mono bridge-tied-load speaker in portable audio applications.

Features
  • Boosted Class D Output
  • Integrated Automatic Level Control
  • Output Power
    • 2.2W into 8I, 10% THD+N
    • 1.7W into 8I, 1% THD+N
    • 4.1W into 4I, 10% THD+N
    • 3.4W into 4I, 1% THD+N
  • Wide 2.5V to 5.5V Supply Voltage Range
  • Undervoltage Lockout Protection
  • High Total Efficiency of 87%
  • High Step-Up Switching Frequency (2MHz)
  • Active Emission Limiting for Low EMI
Applications
  • Cell Phones
  • Smartphones
  • GPS Devices
  • Mobile Internet Devices
  • Active Speaker Accessories
Block Diagram

Block Diagram
Eval Kit Schematic
Eval Kit Schematic
  • Maxim Integrated
  • Semiconductors|Integrated Circuits|IC-Audio