MAX98500

Boosted 2.2W Class D Amplifier with Automatic Level Control

High-Efficiency Boosted Amplifier Makes Speakers Louder Without Collapsing the Battery

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Part Details

  • Boosted Class D Output
  • Integrated Automatic Level Control
  • Output Power
    • 2.2W into 8Ω, 10% THD+N
    • 1.7W into 8Ω, 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
MAX98500
Boosted 2.2W Class D Amplifier with Automatic Level Control
MAX98500: Simplified Block Diagram
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Evaluation Kits

MAX98500EVKIT

Evaluation Kit for the MAX98500

Features and Benefits

  • 2.5V to 5.5V Single-Supply Operation
  • Output Power: 2.2W into 8Ω, 10% THD+N
  • Selectable Gain Settings (6dB, 15.5dB, and 20dB)
  • Boosted Class D Output
  • Differential or Single-Ended Input Signals
  • Boost Converter Shutdown
  • Speaker Output Shutdown
  • Fully Assembled and Tested

Product Details

The MAX98500 evaluation kit (EV kit) is a fully assembled and tested circuit board that uses the MAX98500 boosted Class D amplifier to drive a mono bridge-tied-load (BTL) speaker in portable audio applications. Designed to operate from a 2.5V to 5.5V DC power supply, the EV kit delivers 2.2W into an 8Ω load. The EV kit accepts differential or single-ended input signals, features three selectable gain settings (6dB, 15.5dB, and 20dB), and provides separate speaker and boost shutdown inputs.

Applications

  • Active Speaker Accessories
  • Cell Phones
  • GPS Devices
  • Mobile Internet Devices
  • Smartphones

MAX98500EVKIT
Evaluation Kit for the MAX98500

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