ADCLK948It is an ultra-fast clock fan-out
bumperManufactured using Analog Devices' proprietary XFCB3 silicon-germanium (SiGe) bipolar process, designed for high-speed applications requiring low jitter.
The device has two differential inputs, selectable through IN_SEL control pins. Both inputs are equipped with center-tap, differential, 100 Ω on-chip termination resistors and accept DC-coupled LVPECL, CML, 3.3 V CMOS (single-ended), and AC-coupled 1.8 V CMOS, LVDS, and LVPECL inputs. VREFThe X pin is used to bias the AC-coupled input.
The ADCLK948 contains eight full-swing emitter-coupled logic (ECL) output drivers. For LVPECL (positive ECL) mode of operation, V
CC Bias to positive supply, V
EE Bias to ground. For ECL operating mode, V
CC Bias to ground, V
EE Bias to negative supply.
The output stage is designed to drive 800 mW directly from each end to a 50 Ω load terminated at VCC -2V, resulting in a total differential output swing of 1.6 V.
The ADCLK948 is available in a 32-lead LFCSP package and is specified over the standard industrial temperature range of −40°C to +85°C.
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