ADCLK944BCPZ-R7

Clock Buffers, Drivers Overview

The ADCLK944BCPZ-R7 is a high-performance clock fanout buffer fabricated on Analog Devices' proprietary SiGe bipolar process. It features one differential input and four LVPECL outputs, supporting operating frequencies up to 7.0 GHz. The device incorporates broadband random jitter of 50 fs rms and includes on-chip 100 Ω differential input termination resistors. It operates within a supply voltage range of 2.375 V to 3.63 V and is specified for temperatures from -40°C to +85°C. Packaged in a 16-lead LFCSP (3 mm × 3 mm), it provides low skew distribution for high-speed timing applications.

Clock Buffers, Drivers Feature Summary

• Four LVPECL outputs with maximum frequency of 7.0 GHz
• Broadband random jitter of 50 fs rms
• On-chip center-tapped 100 Ω differential input termination
• Accepts LVPECL, CML, LVDS, and CMOS inputs via dc or ac coupling

Clock Buffers, Drivers Applications

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

Clock Buffers, Drivers Procurement Notes

Verify the ordering suffix matches the required packaging format. The R7 suffix indicates Tape & Reel packaging with a standard factory quantity. Confirm RoHS compliance status through official manufacturer documentation prior to procurement. Ensure the specific variant aligns with thermal and electrical requirements for the target application environment.

Clock Buffers, Drivers Selection Notes

Select this component when low additive jitter and high-frequency operation are critical. The integrated input termination simplifies interface design for CML and LVPECL sources. Ensure the PCB layout supports the exposed pad connection to VEE for proper grounding and thermal dissipation. Verify that the power supply rejection characteristics meet the noise sensitivity requirements of the downstream circuitry.

Clock Buffers, Drivers Part Context

This part belongs to the ADCLK944 series of clock buffers. It is manufactured using silicon germanium technology to achieve ultrafast switching speeds. The device is designed to replace discrete transistor solutions, offering a compact footprint and consistent performance across temperature variations. It serves as a key component in distributing reference clocks to multiple high-speed data converters or transceivers.

Clock Buffers, Drivers Replacement Considerations

The ADCLK944BCPZ-R2 is a pin-compatible alternative packaged in cut tape instead of reel. Both variants share identical electrical specifications and functionality. Selection between R2 and R7 depends solely on manufacturing assembly line packaging requirements.