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MAX98303
Stereo 3.1W Class D Amplifier
Big 3.1W/Channel Power in a Small, 16-Bump 0.4mm WLP
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Key Features
Applications/Uses
Parametric specs for Speaker Amplifiers
| # Channels | 2 |
| Class | D |
| Spkr. Amp. VCC (V) (min) | 2.6 |
| Spkr. Amp. VCC (V) (max) | 5.5 |
| Spkr. Amp. ICC (mA) (typ) | 2 |
| POUT into 4Ω @ 1% THD+N (W) (min) | 2.5 |
| POUT into 4Ω @ 10% THD+N (W) (min) | 3.1 |
| POUT into 8Ω @ 1% THD+N (W) (min) | 1.4 |
| POUT into 8Ω @ 10% THD+N (W) (min) | 1.8 |
| Spkr. Amp. Half Pwr. THD+N (%) | 0.04 |
| SNR (dB) (A- Weighted) | 99.6 |
| PSRR (dB) (min) | 78 |
| Package/Pins | WLP/16 |
| Budgetary Price (See Notes) | 0.77 |
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Simplified Block Diagram
Technical Docs
| Data Sheet | Stereo 3.1W Class D Amplifier | Oct 08, 2010 |
Support & Training
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Filtered SearchOur dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal .
Parameters
Parametric specs for Speaker Amplifiers
| # Channels | 2 |
| Class | D |
| Spkr. Amp. VCC (V) (min) | 2.6 |
| Spkr. Amp. VCC (V) (max) | 5.5 |
| Spkr. Amp. ICC (mA) (typ) | 2 |
| POUT into 4Ω @ 1% THD+N (W) (min) | 2.5 |
| POUT into 4Ω @ 10% THD+N (W) (min) | 3.1 |
| POUT into 8Ω @ 1% THD+N (W) (min) | 1.4 |
| POUT into 8Ω @ 10% THD+N (W) (min) | 1.8 |
| Spkr. Amp. Half Pwr. THD+N (%) | 0.04 |
| SNR (dB) (A- Weighted) | 99.6 |
| PSRR (dB) (min) | 78 |
| Package/Pins | WLP/16 |
| Budgetary Price (See Notes) | 0.77 |
Key Features
- Low Quiescent Current: 2.0mA at 3.7V, 2.7mA at 5V
- Spread Spectrum and Active Emissions Limiting
- Five Pin-Selectable Gains
- Click-and-Pop Suppression
- Thermal and Overcurrent Protection
- Low-Current Shutdown Mode
- Space-Saving, 1.68mm x 1.68mm x 0.64mm, 16-Bump WLP (0.4mm Pitch)
Applications/Uses
- Cellular Phones
- MP3 Players
- Notebook and Netbook Computers
- Portable Audio Players
- Tablets
- VoIP Phones
Description
The MAX98303 stereo 3.1W Class D amplifier provides Class AB audio performance with Class D efficiency. This device offers five selectable gain settings (6dB, 9dB, 12dB, 15dB, and 18dB) 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 2.0mA at 3.7V, 2.7mA at 5V, quiescent current extends battery life in portable applications.
The IC is available in a 16-bump WLP (1.68mm x 1.68mm x 0.64mm) package specified over the extended -40°C to +85°C temperature range.
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 2.0mA at 3.7V, 2.7mA at 5V, quiescent current extends battery life in portable applications.
The IC is available in a 16-bump WLP (1.68mm x 1.68mm x 0.64mm) package specified over the extended -40°C to +85°C temperature range.
Technical Docs
| Data Sheet | Stereo 3.1W Class D Amplifier | Oct 08, 2010 |
Support & Training
Search our knowledge base for answers to your technical questions.
Filtered SearchOur dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal .
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