The maximum cable length supported by the DS90C187LF/NOPB is approximately 10 meters (33 feet) at a data rate of 1.5 Gbps, and 5 meters (16 feet) at a data rate of 3 Gbps, assuming a good quality coaxial cable with a characteristic impedance of 75 ohms.
To ensure proper termination of the differential pairs in the DS90C187LF/NOPB, use a 100-ohm differential termination resistor at the receiver end, and a 75-ohm back-termination resistor at the transmitter end. Additionally, make sure to follow the recommended PCB layout guidelines to minimize signal reflections and crosstalk.
The power consumption of the DS90C187LF/NOPB depends on the operating frequency and data rate. At a data rate of 1.5 Gbps, the typical power consumption is around 450 mW, and at a data rate of 3 Gbps, it is around 600 mW. Refer to the datasheet for more detailed power consumption information.
No, the DS90C187LF/NOPB is not designed for multi-drop bus configurations. It is intended for point-to-point connections only. If you need to implement a multi-drop bus, consider using a serializer-deserializer (SerDes) device specifically designed for that purpose.
To handle clock skew and jitter in the DS90C187LF/NOPB, use a high-quality clock source with low jitter, and ensure that the clock signal is properly terminated and routed on the PCB. Additionally, consider using a clock conditioning circuit or a phase-locked loop (PLL) to further reduce clock jitter and skew.
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