A good PCB layout for the TDA9302H involves keeping the analog and digital grounds separate, using a solid ground plane, and placing the device close to the power supply. Additionally, it's recommended to use a shielded cable for the HDMI connection and to keep the HDMI traces away from other signals.
The TDA9302H requires a 1.8V power supply for the digital core and 3.3V for the analog circuitry. The power sequencing requirement is to power up the 1.8V supply first, followed by the 3.3V supply. It's also recommended to use a power-on reset circuit to ensure proper device initialization.
The TDA9302H uses a standard I2C interface with a 7-bit address. The recommended settings are a clock frequency of 100 kHz to 400 kHz, and a bus capacitance of less than 400 pF. The device can be configured using the I2C interface to set the HDMI output resolution, audio settings, and other parameters.
To troubleshoot HDMI signal integrity issues, check the HDMI cable and connector quality, ensure proper termination, and verify that the HDMI signal is within the specified frequency range. Also, check the device's HDMI output configuration and ensure that it matches the display device's capabilities.
The TDA9302H has a maximum junction temperature of 150°C. To ensure proper thermal management, use a heat sink or thermal pad, and ensure good airflow around the device. The device's thermal resistance (RthJA) is 30°C/W, and the maximum power dissipation is 1.5W.
