TI TAS2564YBGT

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 algorithmically - controlled 256 level boost reduces the average power consumption. The boost is easily configured with PurePath Console GUI. The Class-D amplifier is capable of delivering 7 W of peak power into an 8 Ω. TAS2564 is 83.5% efficient at 1 W output level. Integrated speaker voltage and current sense provides real time monitoring to keep speakers in the safe operation area. Battery tracking peak voltage limiter with brown - out prevention optimizes amplifier headroom over the entire battery discharge. Up to four devices can share a common bus via I2S/TDM + I2C interfaces.

• 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
• 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
• Battery: Advanced Brown Out – Clipping: VBAT Tracking Peak Voltage Limiter
• Transducer: DC Detection and Prevention
• Device: Thermal and Over Current Protection
• 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
• 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 (8 Ω)

• Mobile phones
• Tablets
• Bluetooth speakers
• Consumer audio devices
• Wireless speakers