ZHCS747D January 2012 – September 2021 LMK01801
PRODUCTION DATA
For DC coupled operation of an LVDS driver, terminate with 100 ? as close as possible to the LVDS receiver as shown in Figure 10-6.
Figure 10-6 Differential LVDS Operation, DC Coupling, No Biasing of the ReceiverFor DC coupled operation of an LVPECL driver, terminate with 50 ? to VCC - 2 V as shown in Figure 10-7. Alternatively terminate with a Thevenin equivalent circuit (120 ? resistor connected to VCC and an 82 ? resistor connected to ground with the driver connected to the junction of the 120 ? and 82 ? resistors) as shown in Figure 10-8 for VCC = 3.3 V.
Figure 10-7 Differential LVPECL Operation, DC Coupling
Figure 10-8 Differential LVPECL Operation, DC Coupling, Thevenin Equivalent