ADCLK954BCPZ-REEL7

Clock Buffers, Drivers Overview

The ADCLK954BCPZ-REEL7 is a SiGe clock fanout buffer featuring two selectable differential inputs and twelve LVPECL outputs. It operates at frequencies up to 4.8 GHz with a maximum propagation delay of 245 ps and broadband random jitter of 75 fs rms. The device accepts CMOS, LVDS, or LVPECL inputs via on-chip 100 Ω terminations. Powered by a 3.3 V supply (2.97 V to 3.63 V), it is housed in a 40-lead LFCSP package and functions within an industrial temperature range of -40°C to +85°C.

Clock Buffers, Drivers Feature Summary

• Two selectable differential inputs with integrated 100 Ω center-tapped termination resistors
• Twelve full-swing LVPECL output drivers designed for direct transmission line driving
• Ultra-low jitter performance with 75 fs rms broadband random jitter
• Operates at maximum frequencies up to 4.8 GHz

Clock Buffers, Drivers Applications

• Low jitter clock distribution networks
• Clock and data signal restoration
• Level translation between different logic families
• Wireless and wired communications systems
• Medical and industrial imaging equipment

Clock Buffers, Drivers Procurement Notes

Verify the REEL7 suffix indicates tape and reel packaging for automated assembly. Confirm RoHS compliance status as Z-marked parts are compliant. Ensure the specific lot date code meets project requirements due to potential moisture sensitivity handling constraints during storage and reflow soldering processes.

Clock Buffers, Drivers Selection Notes

Select this component when low jitter distribution from multiple sources is required. The IN_SEL pin allows dynamic input switching between CLK0 and CLK1. Ensure the PCB layout supports high-speed design techniques, including low-inductance power planes and proper thermal vias for the exposed pad to maintain specified electrical performance.

Clock Buffers, Drivers Part Context

This part belongs to the ADCLK954 series of ultrafast clock buffers fabricated on Analog Devices' proprietary XFCB3 silicon germanium bipolar process. The standard version is available in lead-free LFCSP packages, while the REEL7 variant specifically denotes bulk tape and reel packaging suitable for surface mount technology production lines.

Clock Buffers, Drivers Replacement Considerations

Direct functional replacements within the same family include the ADCLK954BCPZ in tube packaging. Other models may require verification of pin compatibility and electrical specifications against the original datasheet requirements.