MC100EP195FA

Overview

The MC100EP195FA is a programmable delay chip designed for clock deskewing and timing adjustment in high-speed digital systems. It provides variable delay of differential NECL/PECL input transitions with a typical maximum input clock frequency exceeding 1.2 GHz. The device features a programmable delay range from 0 ns to 10 ns, utilizing 10 ps increments for precise control. It operates within a PECL mode supply voltage range of 3.0 V to 3.6 V at VEE = 0 V, or an NECL mode range with VCC = 0 V and VEE between -3.0 V and -3.6 V. The component includes temperature compensation, open input default states, and safety clamps on inputs.

Feature Summary

• Provides variable delay for differential NECL/PECL input transitions
• Features temperature-compensated architecture for stable performance
• Includes safety clamps on inputs and open input default state protection

Applications

• Clock deskewing in high-speed communication systems
• Timing adjustment for data synchronization
• Programmable delay lines in test and measurement equipment

Procurement Notes

Verify the specific suffix FA against official datasheets to confirm package type and RoHS compliance status. Ensure compatibility with existing board designs regarding the QFN-32 footprint if applicable. Confirm that the operating voltage requirements align with the system's power supply rails before procurement.

Selection Notes

Select this component when precise, programmable delay adjustments are required for differential ECL signals. Consider the 10 ps resolution and 10 ns total range for applications demanding fine timing control. Verify that the input logic levels (ECL, LVCMOS, or LVTTL) match the control interface requirements.

Part Context

The MC100EP195 series belongs to Onsemi's 100EP family of high-speed ECL components. These devices are engineered for applications requiring low jitter and high-frequency operation, such as telecommunications infrastructure and advanced computing systems. The EP195 specifically addresses timing alignment needs through its programmable architecture.

Replacement Considerations

The MC100EP196A serves as a direct functional replacement, offering similar programmable delay capabilities with the addition of an FTUNE pin for analog fine-tuning of the output delay. Evaluate whether the extra analog tuning feature is necessary for the specific application requirements.