A good PCB layout for the LMH0001SQ involves keeping the input and output traces short and away from each other, using a solid ground plane, and placing the decoupling capacitors close to the device. A 4-layer PCB with a dedicated ground plane is recommended.
Proper termination for the LMH0001SQ involves using a 50-ohm termination resistor at the receiver end, and a 100-ohm differential termination at the transmitter end. The termination resistors should be placed close to the device.
The maximum cable length supported by the LMH0001SQ depends on the signal frequency and the type of cable used. As a general rule, the maximum cable length is around 10 meters for a 3.125 Gbps signal, and around 5 meters for a 6.25 Gbps signal.
To troubleshoot signal integrity issues with the LMH0001SQ, use an oscilloscope to measure the signal eye diagram and check for signal amplitude, jitter, and rise/fall times. Also, check the PCB layout and termination for any issues.
The power consumption of the LMH0001SQ depends on the operating frequency and the supply voltage. Typically, the power consumption is around 150 mW at 3.3V and 3.125 Gbps, and around 250 mW at 3.3V and 6.25 Gbps.
LMH0001SQ/NOPB datasheet
by Texas Instruments
