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Mono 1.4W Class AB Audio Amplifiers

Delivers Low Quiescent Current and Excellent SNR

Product Details

Key Features

Applications/Uses

Parametric specs for Speaker Amplifiers
# Channels 1
Class AB
Spkr. Amp. VCC (V) (min) 2.5
Spkr. Amp. VCC (V) (max) 5.5
Spkr. Amp. ICC (mA) (typ) 1.2
POUT into 4Ω @ 1% THD+N (W) (min) 2.1
POUT into 4Ω @ 10% THD+N (W) (min) 2.7
POUT into 8Ω @ 1% THD+N (W) (min) 1.4
POUT into 8Ω @ 10% THD+N (W) (min) 1.7
Spkr. Amp. Half Pwr. THD+N (%) 0.01
SNR (dB) (A- Weighted) 110
PSRR (dB) (min) 93
Package/Pins WLP/9
Budgetary
Price (See Notes)
0.38
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Simplified Block Diagram

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Parameters

Parametric specs for Speaker Amplifiers
# Channels 1
Class AB
Spkr. Amp. VCC (V) (min) 2.5
Spkr. Amp. VCC (V) (max) 5.5
Spkr. Amp. ICC (mA) (typ) 1.2
POUT into 4Ω @ 1% THD+N (W) (min) 2.1
POUT into 4Ω @ 10% THD+N (W) (min) 2.7
POUT into 8Ω @ 1% THD+N (W) (min) 1.4
POUT into 8Ω @ 10% THD+N (W) (min) 1.7
Spkr. Amp. Half Pwr. THD+N (%) 0.01
SNR (dB) (A- Weighted) 110
PSRR (dB) (min) 93
Package/Pins WLP/9
Budgetary
Price (See Notes)
0.38

Key Features

  • Enhances System Performance
    • Differential Input Improves Noise Immunity
    • Industry-Leading Click-and-Pop Suppression
    • High 90dB PSRR (fIN = 217Hz)
  • Smaller Solution Size
    • 1mm x 1mm WLP Footprint
  • Extends Battery Life
    • Low Quiescent Current
  • Delivers Robust System Design
    • Thermal Overload Protection
    • Short-Circuit Protection
  • 1.2mA Supply Current (VDD = 3.7V)
  • 750mW into 8Ω (VDD = 3.7V)
  • 2.5V to 5.5V Supply Operation
  • Pin-Selectable, Internally-Fixed Gain (MAX98310)
  • 1.8V Logic-Compatible Active-Low SHDN Input

Applications/Uses

  • Cell Phones/Smartphones
  • Digital Cameras
  • e-Readers
  • GPS
  • Portable Media Players
  • Tablets

Description

The MAX98309/MAX98310 mono 1.4W Class AB audio amplifiers offer low quiescent current while maintaining excellent SNR and low 0.008% THD+N. These ICs feature excellent 90dB PSRR and state of the art click-and-pop suppression.

The ICs are offered with an internally fixed 0dB, 3dB, 6dB, and 9dB gain (MAX98310) or an externally set gain (MAX98309) through external resistors.

The MAX98309 feature a 10ms or 100ms pin-selectable turn-on time, while the MAX98310 has a preset 5ms turn-on time.

The MAX98309/MAX98310 are available in a (1.0mm x 1.0mm) 9-bump, 0.3mm pitch WLP, and are specified over the extended -40°C to +85°C temperature range.

Simplified Block Diagram

MAX98309, MAX98310: Simplified Block Diagram MAX98309, MAX98310: Simplified Block Diagram 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 .