ADCLK948BCPZ

The ADCLK948BCPZ is a silicon germanium (SiGe) clock fanout buffer from Analog Devices that provides two selectable differential inputs and eight LVPECL outputs in a 2:8 configuration. It operates at frequencies up to 4.8 GHz and features 75 fs rms broadband random jitter. The device accepts CML, CMOS, LVDS, and LVPECL input logic levels and includes center-tapped 100 Ω differential on-chip input termination resistors, simplifying interface design.

The buffer is designed for low-jitter clock distribution and signal restoration in applications such as wireless and wired communications, medical and industrial imaging, ATE, and high-performance instrumentation. It runs from a 3.3 V nominal supply (2.97 V to 3.63 V) and is characterized over an operating temperature range of -40°C to +85°C. The output stages are LVPECL (positive ECL) and can be biased for LVPECL or ECL operation by connecting VCC and VEE appropriately.

The ADCLK948BCPZ is supplied in a 32-lead LFCSP package (5 mm x 5 mm) with an exposed pad, and is intended for surface mount assembly. Its low jitter and wide input compatibility make it suitable for high-speed clock distribution in dense digital and RF systems.