TAS2559
Description
The TAS2559 device is a state-of-the-art Class-D audio amplifier which is a full system on a Chip (SoC). The device features a ultra low-noise audio DAC and Class-D power.
Key Features
- 1 Ultra low-noise mono boosted class-D amplifier - 5.7 W at 1% THD+N and 6.9 W at 10% THD+N into 4-Ω load from 4.2-V supply - 3.8 W at 1% THD+N and 4.5 W at 10% THD+N into 8-Ω load from 4.2-V supply
- Output noise for DAC + class-D (ICN) is 15.9 µV
- DAC + class-D SNR 111 dB at 1%THD+N/8 Ω
- THD+N -90 dB at 1 W / 8 Ω with flat frequency response
- PSRR 110 dB for 200 mVpp ripple at 217 Hz
- Input sample rates from 8 kHz to 96 kHz
- Built-in speaker sense - Measures speaker current and voltage - Measures VBAT voltage, chip temperature
- Dedicated real-time DSP for speaker protection - Thermal and excursion protection - Detects speaker leaks and damage
- High efficiency class-H boost converter with multilevel tracking - 86% at 500 mW in 8 Ω with 3.6 V VBAT - 87% at 700 mW in 8 Ω with 4.2 V VBAT
- Configurable automatic gain control (AGC) - Limits battery current consumption
