SN75LVDS32DR datasheet by Texas Instruments

SN75LVDS32DR Frequently Asked Questions (FAQs)

• What is the maximum cable length that can be used with the SN75LVDS32DR?
  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' (SLMA002) for more detailed information on cable length and signal integrity.
• Can the SN75LVDS32DR be used for non-LVDS applications, such as TTL or CMOS?
  No, the SN75LVDS32DR is specifically designed for LVDS applications and is not compatible with TTL or CMOS signals. The device is optimized for low-voltage differential signaling and may not function correctly or may be damaged if used with non-LVDS signals.
• How do I terminate the LVDS signals in my system?
  The SN75LVDS32DR requires a 100-ohm differential termination resistor at the receiver end to ensure proper signal integrity. The termination resistor should be placed as close to the receiver as possible to minimize signal reflections. Additionally, the transmitter output should be AC-coupled to the receiver input using a capacitor to block any DC offset.
• What is the power consumption of the SN75LVDS32DR?
  The power consumption of the SN75LVDS32DR depends on the operating frequency and the load capacitance. According to the datasheet, the typical power consumption is around 15-20 mA per channel at a frequency of 100 MHz. However, this value can increase to around 30-40 mA per channel at higher frequencies (e.g., 400 MHz).
• Can the SN75LVDS32DR be used in a multi-point bus configuration?
  No, the SN75LVDS32DR is designed for point-to-point connections and is not suitable for multi-point bus configurations. The device is optimized for high-speed, low-latency transmission over short distances and may not function correctly in a multi-point bus configuration.