Texas Instruments provides a recommended layout and routing guide in the TAS5709PHP Evaluation Module (EVM) user's guide, which can be found on the TI website. It's essential to follow this guide to ensure proper operation and minimize electromagnetic interference (EMI).
To optimize the TAS5709PHP for low noise and distortion, ensure that the power supply is well-regulated and decoupled, use a low-ESR capacitor for the PVCC pin, and keep the analog and digital grounds separate. Additionally, use a shielded cable for the audio input and output, and minimize the length of the audio signal traces.
The TAS5709PHP can handle a maximum power of 20W per channel into a 4Ω load. However, the actual power handling capability depends on the thermal design and heat sinking of the system. It's essential to ensure proper heat sinking and thermal management to prevent overheating and damage to the device.
The TAS5709PHP can be configured for different audio formats and sampling rates using the I2C interface. The device supports various audio formats, including I2S, PCM, and DSP, and sampling rates up to 192 kHz. Refer to the datasheet and the TAS5709PHP programming guide for more information on configuring the device for specific audio formats and sampling rates.
The TAS5709PHP has a thermal pad that must be connected to a heat sink or a thermal plane on the PCB to ensure proper heat dissipation. The device can operate up to a junction temperature of 150°C, but it's recommended to keep the junction temperature below 125°C for optimal performance and reliability. Ensure that the thermal design meets the thermal requirements specified in the datasheet.
TAS5709PHP datasheet
by Texas Instruments
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