MAX98314 Mono 3.2 W Class D Amplifier with Integrated Input Coupling Capacitors
Maxim's industry's-smallest Class D solution integrates input capacitors, saving more than 25% board space
The MAX98314 mono 3.2 W Class D amplifier provides Class AB audio performance with Class D efficiency. This device offers five selectable gain settings (0 dB, 3 dB, 6 dB, 9 dB, and 12 dB) set by a single gain-select input (GAIN).
Active emissions limiting (AEL) edge rate and overshoot control circuitry and a filterless spread-spectrum modulation (SSM) scheme greatly reduce EMI and eliminate the need for output filtering found in traditional Class D devices.
The IC's low 0.95 mA at 3.7 V (1.2 mA at 5.0 V) quiescent current extends battery life in portable applications.
Highly linear, integrated input coupling capacitors (CIN) reduce solution size and provide excellent THD+N, PSRR, and CMRR performance at low frequencies versus standard Class D amplifiers using external input capacitors.
The IC is available in a small 9-bump, 0.3 mm pitch WLP (1.0 mm x 1.0 mm x 0.80 mm) package and is specified over the -40°C to +85°C extended temperature range.
- Integrated input coupling capacitors with excellent linearity
- fC = 100 Hz (6 dB)
- fC = 200 Hz (12 dB)
- Low quiescent current
- 0.95 mA at 3.7 V
- 1.2 mA at 5.0 V
- Delivers high output power at 10% THD+N
- 3.2 W into 4 Ω, VPVDD = 5 V
- 960 mW into 8 Ω, VPVDD = 3.7 V
- Ultra-low noise: 19 µV
- Eliminates output filtering requirement
- Spread spectrum and active emissions limiting
- Click-and-pop suppression
- Thermal and overcurrent protection
- Low-current shutdown mode
- Small, space-saving package
- Mobile phones
- MP3 players
- Netbook computers
- Notebook computers
- Portable audio
- VoIP phones
|Manufacturer Part Number||Description||Available Quantity||Datasheets|
|MAX98314EWL+T||IC AMP AUDIO 3.2W MONO D 9WLP||2427|