To ensure reliability of the device, the following
common printed-circuit board layout guidelines are recommended:
- Bypass capacitors should be used on power supplies, and should be placed as
close as possible to the VCCA and VCCB pins and the GND
pin
- Short trace-lengths should be used to avoid excessive loading.
- PCB signal trace-lengths must be kept short enough so that the round-trip delay
of any reflection is less than the O.S. duration, approximately 10ns, ensuring
that any reflection encounters low impedance at the source driver.