ft2820
Description
The ft2820 is a 4W boosted Class-G audio power amplifier based upon a proprietary Dual-PumpTM topology with automatic level control (ALC). It operates from 3V to 5.5V supply.
Key Features
- Proprietary Dual-PumpTM topology
- Filterless Class-G operation with an integrated charge pump
- Automatic level control to eliminate output clipping
- Integrated lowpass filter for out-of-band noise rejection
- Maximum output power: 4W (VDD=4.2V, RL=4Ω, THD+N=10%, ALC Off)
- Constant output power: 3.3W (VDD=4.2V, RL=4Ω, THD+N=0.5%, ALC On)
- High power efficiency up to 82%
- Low THD+N: 0.05% (VDD=3.6V, f=1kHz, RL=4Ω, Po=1W)
- ALC dynamic range: 10.5dB
- Low quiescent current: 2.7mA @ VDD=3.6V
