The maximum cable length depends on the specific application and the signal frequency. As a general rule, the maximum cable length for LVDS signals is around 10-15 meters. However, it's recommended to consult the TI application note 'LVDS Owner's Manual' (SLWC073) for more detailed information on cable length and signal integrity.
To ensure signal integrity and minimize EMI, it's essential to follow proper PCB layout and design guidelines. This includes using a solid ground plane, minimizing trace lengths, and using shielding or twisted pairs for the LVDS signals. Additionally, the use of a common-mode choke or a ferrite bead can help to reduce EMI emissions.
The recommended termination scheme for the SN65LVDS1050PWG4 is a 100-ohm differential termination resistor at the receiver end. This helps to match the impedance of the transmission line and minimize signal reflections.
While the SN65LVDS1050PWG4 is primarily designed for LVDS applications, it can be used for other differential signaling standards like RS-422 or RS-485 with some limitations. However, the device's performance and signal integrity may not be optimal for these applications, and additional circuitry or components may be required to meet the specific standard's requirements.
To handle hot swapping or insertion/removal of cables with the SN65LVDS1050PWG4, it's recommended to use a hot-swap controller or a power-switching device to control the power supply to the device. This helps to prevent damage to the device or the system during insertion or removal of cables.
SN65LVDS1050PWG4 datasheet
by Texas Instruments
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