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 at a frequency of 100 MHz. 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.
The LVDS outputs of the SN65LVDS19DRFT should be terminated with a 100-ohm differential load to ensure proper signal integrity and to minimize reflections. The termination resistors should be placed as close to the receiver as possible.
The power-up sequence for the SN65LVDS19DRFT is not critical, but it's recommended to power up the VCC supply before the input signals to ensure proper device operation. Additionally, the input signals should be stable before the VCC supply reaches its nominal value.
Yes, the SN65LVDS19DRFT can operate with a 3.3V power supply. The device is specified to operate from 2.5V to 3.6V, making it compatible with 3.3V systems. However, the output voltage swing will be reduced at lower supply voltages, which may affect the signal integrity.
The thermal shutdown feature of the SN65LVDS19DRFT is designed to protect the device from overheating. If the device temperature exceeds 150°C, the thermal shutdown feature will activate, and the device will shut down. To handle this feature, ensure proper heat sinking, use a thermal pad or heat sink, and avoid operating the device in high-temperature environments.
SN65LVDS19DRFT datasheet
by Texas Instruments
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