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Mono 2W Class D Amplifier

Latest Generation Class D Technology Features the Industry's Best EMI Performance with Low 0.8mA IQ

Product Details

The MAX98300 mono 2.6W 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 edge-rate and overshoot control circuitry greatly reduces EMI. A filterless spread-spectrum modulation scheme eliminates the need for output filtering found in traditional Class D devices. These features reduce application component count.

The MAX98300 industry-leading 0.78mA at 3.7V (1.1mA at 5V) quiescent current extends battery life in portable applications.

The MAX98300 is available in an 8-pin TDFN-EP (2mm x 2mm x 0.8mm) and a 9-bump (1.2mm x 1.2mm) WLP. Both packages are specified over the extended -40°C to +85°C temperature range.

Key Features

  • Industry-Leading Quiescent Current: 0.78mA at 3.7V, 1.1mA at 5V
  • Spread Spectrum and Active Emissions Limiting
  • Five Selectable Gains
  • Click-and-Pop Suppression
  • Thermal and Overcurrent Protection
  • Low-Current Shutdown Mode
  • Space-Saving Packages
    • 2mm x 2mm x 0.8mm, 8-Pin TDFN-EP
    • 1.2mm x 1.2mm, 9-Bump WLP (0.4mm Pitch)

Applications/Uses

  • Cellular Phones
  • MP3 Players
  • Notebook and Netbook Computers
  • Portable Audio Players
  • VoIP Phones
Parametric specs for Speaker Amplifiers
# Channels 1
Class D
Spkr. Amp. VCC (V) (min) 2.6
Spkr. Amp. VCC (V) (max) 5.5
Spkr. Amp. ICC (mA) (typ) 1.1
POUT into 4Ω @ 1% THD+N (W) (min) 2.1
POUT into 4Ω @ 10% THD+N (W) (min) 2.6
POUT into 8Ω @ 1% THD+N (W) (min) 1.35
POUT into 8Ω @ 10% THD+N (W) (min) 1.65
Spkr. Amp. Half Pwr. THD+N (%) 0.04
PSRR (dB) (min) 67
Package/Pins TDFN/8
WLP/9
Budgetary
Price (See Notes)
$0.47 @1k
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Simplified Block Diagram

MAX98300: Typical Application Circuit MAX98300: Typical Application Circuit Zoom icon

Technical Docs

Design & Development

Click any title below to view the detail page where available.

Description

The MAX98300 evaluation kit (EV kit) is a fully assembled and tested circuit board that uses the MAX98300 filterless Class D amplifier to drive a speaker in portable audio applications. The EV kit comes with a MAX98300 IC in a 9-bump, 0.4mm pitch wafer-level-package (WLP). Designed to operate from a 2.6V to 5.5V DC power supply, the EV kit is capable of delivering 2.6W into a 4Ω load. The EV kit accepts differential or single-ended input signals.

View Details

Features

  • Demonstrates Industry-Leading Quiescent Current
    • 1.1mA (PVDD = 5V), 0.78mA (PVDD = 3.7V)
  • Filterless Operation Passes Radiated Emissions with Up to 60cm of Speaker Cable
  • 2.6V to 5.5V Single-Supply Operation
  • 2.6W Mono Class D Output
  • Selectable Gain Control
  • Differential or Single-Ended Input
  • Low-Power Shutdown Input
  • Fully Assembled and Tested

Description

The MAX98300 evaluation kit (EV kit) is a fully assembled and tested circuit board that uses the MAX98300 filterless Class D amplifier to drive a speaker in portable audio applications. The EV kit comes with a MAX98300 IC in an 8-pin TDFN package. Designed to operate from a 2.6V to 5.5V DC power supply, the EV kit is capable of delivering 2.6W into a 4Ω load. The EV kit accepts differential or single-ended input signals.

View Details

Features

  • Demonstrates Industry-Leading Quiescent Current
    • 1.1mA (PVDD = 5V), 0.78mA (PVDD = 3.7V)
  • Filterless Operation Passes Radiated Emissions with Up to 60cm of Speaker Cable
  • 2.6V to 5.5V Single-Supply Operation
  • 2.6W Mono Class D Output
  • Selectable Gain Control
  • Differential or Single-Ended Input
  • Low-Power Shutdown Input
  • Fully Assembled and Tested

Description

The MAXWINGDEMO1# evaluation kit is a serial bus experimentation platform that builds upon the MAX32620FTHR board by adding several SPI and I2C peripherals in a featherwing form factor. The MAX32620FTHR is available separately.

The kit includes the following items:

  • MAXWINGDEMO1# Featherwing printed circuit board

View Details

Features

  • MAX44009 Optical Sensor (I2C)
  • MAX31723 Temperature Sensor (SPI)
  • MAX5216 Digital-to-Analog Convertor (SPI)
  • MAX98300 Class-D Audio Amplifier with On-Board SMD Speaker

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Support & Training

Search our knowledge base for answers to your technical questions.

Filtered Search

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Parameters

Parametric specs for Speaker Amplifiers
# Channels 1
Class D
Spkr. Amp. VCC (V) (min) 2.6
Spkr. Amp. VCC (V) (max) 5.5
Spkr. Amp. ICC (mA) (typ) 1.1
POUT into 4Ω @ 1% THD+N (W) (min) 2.1
POUT into 4Ω @ 10% THD+N (W) (min) 2.6
POUT into 8Ω @ 1% THD+N (W) (min) 1.35
POUT into 8Ω @ 10% THD+N (W) (min) 1.65
Spkr. Amp. Half Pwr. THD+N (%) 0.04
PSRR (dB) (min) 67
Package/Pins TDFN/8
WLP/9
Budgetary
Price (See Notes)
$0.47 @1k

Key Features

  • Industry-Leading Quiescent Current: 0.78mA at 3.7V, 1.1mA at 5V
  • Spread Spectrum and Active Emissions Limiting
  • Five Selectable Gains
  • Click-and-Pop Suppression
  • Thermal and Overcurrent Protection
  • Low-Current Shutdown Mode
  • Space-Saving Packages
    • 2mm x 2mm x 0.8mm, 8-Pin TDFN-EP
    • 1.2mm x 1.2mm, 9-Bump WLP (0.4mm Pitch)

Applications/Uses

  • Cellular Phones
  • MP3 Players
  • Notebook and Netbook Computers
  • Portable Audio Players
  • VoIP Phones

Description

The MAX98300 mono 2.6W 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 edge-rate and overshoot control circuitry greatly reduces EMI. A filterless spread-spectrum modulation scheme eliminates the need for output filtering found in traditional Class D devices. These features reduce application component count.

The MAX98300 industry-leading 0.78mA at 3.7V (1.1mA at 5V) quiescent current extends battery life in portable applications.

The MAX98300 is available in an 8-pin TDFN-EP (2mm x 2mm x 0.8mm) and a 9-bump (1.2mm x 1.2mm) WLP. Both packages are specified over the extended -40°C to +85°C temperature range.

Simplified Block Diagram

MAX98300: Typical Application Circuit MAX98300: Typical Application Circuit Zoom icon

Technical Docs

Support & Training

Search our knowledge base for answers to your technical questions.

Filtered Search

Our dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal