DESCRIPTION
Because the LX5245/ 5246/5247 support only LVD, they have lower output capacitance than multimode terminators such as the LX5240. Elimination of the external capacitors also mitigates the need for a lengthy capacitor selection process. The individual high bandwidth drivers also maximize channel separation and reduces channel-to-channel noise and cross talk. The high-bandwidth UltraMAX architecture insures ULTRA-2 performance, while providing a clear migration path to ULTRA-3 and beyond. When The LX5245/5246/5247 Are Enabled, The Differential Sense (DIFFSENSE) Pin Supplies A Voltage Between 1.2V And 1.4V. In application, the terminator DIFFSENSE output is connected to the system DIFFSENSE line. If there are no single ended or HVD devices attached to the system the LVD output will be enabled. If the DIFFSENSE line is LOW, indicating a single ended device, the LX5245/ 5246/5247 output will be HiZ. If the DIFFSENSE line is HIGH, indicating a high voltage differential device the LX5245/5246/ 5247 output will be HiZ.
Microsemi
