TAS2564YBGR | DSBGA-36 | 智能放大器 | TI

• 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)

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 + I 2C interfaces.