A good PCB layout for the TMDS261BPAGR involves keeping the analog and digital grounds separate, using a solid ground plane, and minimizing the length of the clock signal traces. It's also recommended to use a 4-layer PCB with a dedicated power plane and a dedicated ground plane.
To ensure proper power supply, use a low-dropout regulator (LDO) with a low output voltage noise and a high power supply rejection ratio (PSRR). Also, decouple the power pins with a 10uF capacitor and a 100nF capacitor in parallel, and use a 1uF capacitor to decouple the analog power pin.
The recommended clock signal frequency for the TMDS261BPAGR is 27 MHz, but it can operate with clock frequencies up to 40 MHz. However, it's essential to ensure the clock signal is clean and has minimal jitter to maintain the device's performance.
The TMDS261BPAGR can be configured for different video formats by setting the appropriate registers. For example, to configure the device for 1080p resolution, set the HSYNC and VSYNC registers accordingly, and adjust the clock frequency and phase accordingly.
The TMDS261BPAGR supports cable lengths up to 10 meters at a data rate of 2.25 Gbps. However, the actual cable length may vary depending on the cable quality, signal attenuation, and other environmental factors.
TMDS261BPAGR datasheet
by Texas Instruments
