ADCLK948BCPZ-REEL7

Clock Buffers, Drivers Overview

The ADCLK948BCPZ-REEL7 is a SiGe clock fanout buffer featuring two selectable differential inputs and eight LVPECL outputs. It operates at frequencies up to 4.8 GHz with a maximum propagation delay of 245 ps. The device accepts CML, CMOS, LVDS, and LVPECL input signals via internal 100 Ω terminations. Powered by a 2.97 V to 3.63 V supply, it delivers a broadband random jitter of 75 fs rms. Packaged in a 32-lead LFCSP (5 mm × 5 mm), it supports operation from -40°C to +85°C.

Clock Buffers, Drivers Feature Summary

• Two selectable differential inputs (CLK0/CLK1) controlled by IN_SEL pin
• Eight full-swing LVPECL output drivers with 50 Ω on-chip input termination
• Ultra-low jitter performance: 75 fs rms broadband random jitter
• Supports multiple input formats including CML, LVDS, LVPECL, and 3.3 V CMOS

Clock Buffers, Drivers Applications

• Low jitter clock distribution networks
• Clock and data signal restoration systems
• Wireless and wired communications infrastructure
• Medical and industrial imaging equipment
• ATE and high-performance instrumentation

Clock Buffers, Drivers Procurement Notes

Verify the package type matches the 32-LFCSP specification. Confirm RoHS compliance status for the specific reel batch. Ensure handling procedures account for moisture sensitivity levels during storage and reflow soldering processes.

Clock Buffers, Drivers Selection Notes

Select this component when low phase noise and high-speed fan-out are required. Ensure the input signal slew rate exceeds 4 V/ns to maintain optimal jitter performance. Verify that the PCB layout provides adequate thermal dissipation through the exposed pad to the VEE plane.

Clock Buffers, Drivers Part Context

This part belongs to the Analog Devices SiGe clock buffer family. It serves as a high-speed distribution solution for differential clock signals. The REEL7 suffix indicates tape and reel packaging for automated assembly. It complements other buffers like the ADCLK946 and ADCLK950 in system designs requiring precise timing.

Clock Buffers, Drivers Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.