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MAX98304

Mono 3.2W Class D Amplifier

Industry's Smallest Class D Amplifier! 1mm x 1mm!
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Status Explanations for product status codes

Active: In Production.

Description

The MAX98304 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, 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 IC's 0.95mA at 3.7V (1.2mA at 5V) quiescent current extends battery life in portable applications.

The IC is available in a 9-bump (1.0mm x 1.0mm) WLP with 0.3mm pitch that is specified over the extended -40°C to +85°C temperature range.

Data Sheet

Download this datasheet in PDF formatDownload Rev 0 (PDF, 2MB)
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An evaluation board is available: MAX98304EVKIT

Key Features

  • Low Quiescent Current: 0.95mA at 3.7V
  • Spread Spectrum and Active Emissions Limiting
  • Five Pin-Selectable Gains
  • 19µVRMS Ultra-Low Noise
  • 90dB PSRR
  • Click-and-Pop Suppression
  • Thermal and Overcurrent Protection
  • Low-Current Shutdown Mode
  • 1.0mm x 1.0mm, 9-Bump WLP (0.3mm Pitch) Space-Saving Package
 

Applications/Uses

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

Key Specifications:

Speaker Amplifiers
Part Number Class Spkr. Amp. VCC
(V)
Spkr. Amp. VCC
(V)
Spkr. Amp. ICC
(mA)
POUT into 4Ω @ 1% THD+N
(W)
POUT into 4Ω @ 10% THD+N
(W)
POUT into 8Ω @ 1% THD+N
(W)
POUT into 8Ω @ 10% THD+N
(W)
Spkr. Amp. Half Pwr. THD+N
(%)
SNR
(dB)
PSRR
(dB)
Budgetary
Price
min max typ min min min min A- Weighted min See Notes
MAX98304  D 2.5 5.5 0.95 2.6 3.2 1.4 1.8 0.03 99.6 90 $0.42 @1k
See All Speaker Amplifiers (37)

Pricing Notes:

This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific and version-specific prices and delivery, please see the price and availability page or contact an authorized distributor.



Diagram

MAX98304: Typical Application Circuit
Typical Application Circuit

More Information

Topmark Coding MAX98304
New Product Press Release   2011-01-19 ]

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Information Index

Document Ref.: 19-5519 Rev 0; 2010-10-11
This page last modified: 2013-07-29