HMC987LP5E

Clock Buffers, Drivers Overview

The HMC987LP5E is a low noise 1:9 fanout buffer designed for clock distribution applications operating from DC to 8 GHz. It features an input stage compatible with CML, CMOS, LVDS, and LVPECL formats, supporting both AC and DC coupling. The device provides eight differential LVPECL outputs and one adjustable power CML/RF output. Powered by a single 3V to 3.6V supply, it achieves an ultra-low noise floor of -166 dBc/Hz at 2 GHz. Individual output stages can be enabled or disabled via hardware control pins or a serial port interface to optimize power consumption.

Clock Buffers, Drivers Feature Summary

• Ultra-low noise floor of -166 dBc/Hz at 2 GHz carrier frequency
• Wideband operation from DC to 8 GHz with rise/fall times under 100 ps
• Flexible input interface supporting CML, CMOS, LVDS, and LVPECL signals
• Configurable output drivers including 8 LVPECL channels and 1 adjustable CML/RF channel

Clock Buffers, Drivers Applications

• SONET, Fiber Channel, and GigE clock distribution
• ADC/DAC clock distribution systems
• Low skew and jitter clock or data fanout networks
• Wireless and wired communications infrastructure
• High performance instrumentation and medical imaging

Clock Buffers, Drivers Procurement Notes

Verify component authenticity through authorized Analog Devices distributors. Confirm the package marking matches the specified lot number format. Ensure handling procedures comply with ESD sensitivity Class 1b requirements during assembly.

Clock Buffers, Drivers Selection Notes

Select this component when wide bandwidth up to 8 GHz and minimal phase noise are critical. Verify that the system supports the required 3.3V nominal supply voltage range. Ensure PCB layout accommodates the 32-VFQFN exposed pad package dimensions.

Clock Buffers, Drivers Part Context

This part belongs to the HMC987 series of clock buffers manufactured by Analog Devices Inc. It serves as a high-performance solution for distributing reference clocks across multiple downstream components in high-speed digital and RF systems.

Clock Buffers, Drivers Replacement Considerations

No public confirmed substitute part numbers are available in the provided documentation.