Описание
The FAB3103 is a mono Class-D audio amplifier With an integrated boost regulator that achieves high output audio over a power supply range Of 2.5V to 5.2V. Automatic Boost Shutdown dynamically shuts down the boost regulator at IOW output power for greater efficiency and lower quiescent current consumption. Automatic Gain Control (AGC) monitors the battery and reduces gain as the battery voltage drops to limit rnaximum current consumption, extending battery runtime and preventing mobile device shutdown.
- High Output, LOW Distortion Class-D Mono Speaker Amplifier
- 2.3W into 80 from 3.6V supply (10% THD+N)
- 1.85W into from 3.6V supply (1% THD+N)
- 0.01% THD+N into (100mW)
- High-Effciency Boost Regulator Provides Higher Output Power Over Li-lon Battery Voltages
- Total Efficiency (3.6V, 8O, PO = 1.0W)
- Adaptive Boost Shutdown at Lover Output Pover Increases Efficiency and Reduces Quiescent Current Consumption:
- IDD = 2.7mA from 3.6V Supply
- Automatic Gain Control (ACC) Monitors Battery Voltage and Dynamically Adjusts Gain, Extending Battery Runtime
- Reduced Noise Floor Enhances Audio Playback
- 38uV Output Noise (A-Weighted)
- 100dB SNR (A-weighted)
- LOW-EMI Design Allows Filterless Operation
- High-pover Supply Ripple Rejection:
- 88dB PSRR (fRIPPLE = 217Hz, Boost Enabled)
- 70dB PSRR (fRIPPLE = 217Hz, Boost Bypassed)
- High Noise Rejection using Differential
- Audio Inputs:
- 75dB CMRR (fIN=1kHz)
- 71dB CMRR (fIN=217Hz)
- Short-Circuit Protection
- under-voltage Protection
- “Click and Pop” Suppression
- Available in 12-Bump, 0.5mm Pitch, WLCSP
- Space-saving I .86mM x 1.44mm Package
