MC100EP195MNG

Overview

The MC100EP195MNG is a 3.3 V ECL Programmable Delay Chip (PDC) designed for clock deskewing and timing adjustment in high-speed systems. It provides variable delay of differential NECL/PECL input transitions with a digitally selectable resolution of approximately 10 ps and a net programmable range up to 10.2 ns. The device features a fixed minimum delay of 2.2 ns and supports cascading via the D10 pin to extend the total delay range. It operates within a supply voltage range of 3.0 V to 3.6 V for PECL mode or -3.0 V to -3.6 V for NECL mode, with an operating temperature range of -40°C to +85°C. Packaged in a QFN-32 format.

Feature Summary

• Programmable delay matrix using gates and multiplexers allows precise timing adjustments with 10 ps increments.
• Supports cascading multiple units via internal cascade logic controlled by the D10 input to increase total programmable range.
• Configurable data select inputs accept LVCMOS, LVTTL, or ECL levels through external reference connections on VCF and VEF pins.
• Includes safety clamps on inputs and an open input default state to ensure predictable behavior during initialization.

Applications

• Clock deskewing and timing adjustment in high-speed digital systems
• Multiple channel delay matching to eliminate timing skews caused by impedance or cable length differences
• Measurement of unknown high-speed device delays when combined with other timing components

Procurement Notes

Verify the specific suffix MN indicates the QFN-32 package configuration as documented in the ordering information section. Confirm RoHS compliance status and moisture sensitivity level requirements for your assembly process. Ensure all VCC and VEE power pins are externally connected to guarantee proper operation according to the datasheet specifications.

Selection Notes

Select this component when precise sub-nanosecond delay tuning is required for differential ECL signals. Consider the cascading capability if delays exceeding 10 ns are necessary. Verify that the interface voltage levels match your control logic by configuring the VCF and VEF pins appropriately for LVCMOS, LVTTL, or ECL modes.

Part Context

This device belongs to the MC100EP195 series of programmable delay chips manufactured by onsemi. It is part of the 100 Series which includes temperature compensation. The MNG suffix specifically denotes the QFN-32 package variant, distinct from the LQFP-32 options available in the same product family.

Replacement Considerations

Direct replacements include other variants within the MC100EP195 family such as the FAG or FAR2G suffixes, which offer different packaging options like LQFP-32. Ensure the replacement maintains the same electrical characteristics and pinout compatibility for your specific application requirements.