TAS2564
Description
The TAS2564 is a digital input, Class-D audio amplifier with a 256 level, 13 V Class-H boost. The robust 13 V Class-H boost provides the power needed for peak output while the algorithmicallycontrolled 256 level boost reduces the average power consumption.
Key Features
- 1 Key Features - 256 Level, 13-V Class-H Boost - Speaker Current and Voltage Sense - Inter Chip Alignment (ICLA) of gain across devices.
- Output Power - 7-W 0.1% THD+N (8 Ω at 3.8 V)
- Power Consumption (1% THD+N, 4.2 V into 8 Ω) - 83.5% efficiency at 1 W - <1uA HW shutdown VBAT Current
- Power Supplies - VBAT: 2.7 V to 5.5 V - VDD: 1.65 V to 1.95 V - Digital (1.5 V) is internally generated from VDD. - IO and Analog supplies are internally shorted to VDD.
- Protections - Battery: Advanced Brown Out - Clipping: VBAT Tracking Peak Voltage Limiter - Transducer: DC Detection and Prevention - Device: Thermal and Over Current Protection
- Interfaces and Control - I2S/TDM: 8 Channels of 32 bit each up to 96 KSPS - I2C: 4 selectable addresses - 16 KSPS to 192 KSPS Sample Rates - MCLK Free operation
- Performance - Speaker/Receiver Mode with Dynamic Noise Control of Idle Channel Noise (ICN) - Receiver Mode: 10 µVrms ICN - Speaker Mode: 15 µVrms ICN - Spread Spectrum Low EMI Mode - 110 dB SNR at 1% THD+N(8Ω)
