Overview
The TAS2564YBGR, produced by Texas Instruments, is a digital input, Class-D audio amplifier integrated with a 256-level, 13 V Class-H boost. This amplifier is designed to deliver high efficiency and robust performance, making it suitable for a variety of audio applications. It can deliver up to 7 W of peak power into an 8 Ω load and achieves an efficiency of 83.5% at a 1 W output level. The device features real-time monitoring of speaker voltage and current, ensuring safe operation. Additionally, it includes a battery tracking peak voltage limiter with brown-out prevention to optimize amplifier headroom throughout the battery discharge cycle.
Key Specifications
| Parameter | Test Conditions | MIN | TYP | MAX | UNIT |
|---|---|---|---|---|---|
| Peak Output Power | RL = 8 Ω | - | - | 7 | W |
| Efficiency at 1 W Output | RL = 8 Ω | - | 83.5% | - | % |
| Analog / IO Supply Voltage (VDD) | - | -0.3 | - | 2 | V |
| Battery Supply Voltage (VBAT) | - | -0.3 | - | 6 | V |
| Boost Pin (VBST) | - | -0.3 | - | 18.5 | V |
| Power Supply Voltage (PVDD) | - | -0.3 | - | 18.5 | V |
| Signal-to-Noise Ratio (SNR) | 1% THD+N, 8 Ω | - | - | 110 | dB |
| Programmable Digital Gain Range | - | 0 | - | 23 | dBV |
| PCM Sample Rates & FSYNC Input Frequency | - | 16 | - | 192 | kHz |
| SBCLK Input Frequency | - | 0.512 | - | 24.57 | MHz |
Key Features
- Digital input, Class-D audio amplifier with 256-level, 13 V Class-H boost
- Delivers up to 7 W of peak power into an 8 Ω load
- Efficiency of 83.5% at 1 W output level
- Real-time monitoring of speaker voltage and current for safe operation
- Battery tracking peak voltage limiter with brown-out prevention
- Programmable digital gain range of 0 to 23 dBV
- Supports I2S/TDM + I2C interfaces; up to four devices can share a common bus
- Integrated click and pop reduction
- Thermal foldback and overtemperature protection
- Low power consumption in shutdown modes
Applications
- Mobile phones
- Tablets
- Bluetooth speakers
- Consumer audio devices
- Wireless speakers
Q & A
- What is the peak output power of the TAS2564YBGR?
The TAS2564YBGR can deliver up to 7 W of peak power into an 8 Ω load.
- What is the efficiency of the TAS2564YBGR at 1 W output level?
The efficiency is 83.5% at a 1 W output level.
- What is the signal-to-noise ratio (SNR) of the TAS2564YBGR?
The SNR is 110 dB at 1% THD+N, 8 Ω.
- What are the supported PCM sample rates for the TAS2564YBGR?
The supported PCM sample rates range from 16 kHz to 192 kHz.
- How does the battery tracking peak voltage limiter work?
The battery tracking peak voltage limiter optimizes amplifier headroom over the entire battery discharge cycle, preventing brown-out conditions.
- What interfaces does the TAS2564YBGR support?
The device supports I2S/TDM + I2C interfaces, allowing up to four devices to share a common bus.
- What is the programmable digital gain range of the TAS2564YBGR?
The programmable digital gain range is from 0 to 23 dBV.
- How does the real-time monitoring of speaker voltage and current work?
The device provides real-time monitoring of speaker voltage and current to ensure safe operation and prevent damage to the speakers.
- What are some common applications for the TAS2564YBGR?
Common applications include mobile phones, tablets, Bluetooth speakers, consumer audio devices, and wireless speakers.
- How does the thermal foldback and overtemperature protection work?
The device features thermal foldback and overtemperature protection to prevent overheating and ensure reliable operation.
