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NB6L11M
2.5V / 3.3V 1:2 Differential CML Fanout Buffer
Multi−Level Inputs w/ Internal Termination
Description The NB6L11M is a differential 1:2 CML fanout buffer. The
differential inputs incorporate internal 50 W termination resistors that are accessed through the VT pins and will accept LVPECL, LVCMOS, LVTTL, CML, or LVDS logic levels.
The VREFAC pin is an internally generated voltage supply available to this device only. VREFAC is used as a reference voltage for single−ended PECL or NECL inputs. For all single−ended input conditions, the unused complementary differential input is connected to VREFAC as a switching reference voltage. VREFAC may also rebias capacitor−coupled inputs. When used, decouple VREFAC with a 0.01 mF capacitor and limit current sourcing or sinking to 0.5 mA.