MC100EP16VSD

Specialty Logic Overview

The MC100EP16VSD is a differential receiver/driver from the onsemi 100EP series, featuring variable output amplitude controlled by the VCTRL pin. It operates in PECL mode with VCC ranging from 3.0 V to 5.5 V (VEE = 0 V) and NECL mode with VEE ranging from -3.0 V to -5.5 V (VCC = 0 V). The device provides a typical propagation delay of 220 ps and supports maximum toggle frequencies exceeding 4 GHz. It includes an internally generated VBB reference voltage for single-ended inputs or AC coupling biasing. The component is housed in an SOIC-8 package.

Specialty Logic Feature Summary

• Features a dedicated VCTRL input pin that allows precise control over the output signal amplitude, referenced to VCC.
• Incorporates temperature compensation within the 100 Series architecture to ensure stable performance across operating temperatures.
• Provides an internal VBB reference voltage source available for use as a switching reference or AC coupling bias.
• Includes open input default state functionality where the Q output defaults to LOW when inputs are open or at VEE.

Specialty Logic Applications

• High-speed data transmission systems requiring adjustable signal swing
• Clock distribution networks utilizing ECL/PECL interfaces
• Interfacing between different logic families with varying voltage requirements

Specialty Logic Procurement Notes

Verify the specific suffix 'D' corresponds to the SOIC-8 package variant. Confirm RoHS compliance status if required, noting that 'G' suffix variants explicitly denote Pb-Free packaging. Ensure ordering documentation matches the exact part number to avoid confusion with similar models like MC100EP16VT which include internal termination.

Specialty Logic Selection Notes

Select this component when variable output swing capability is necessary for impedance matching or noise margin optimization. Compare against standard EP16 devices if fixed amplitude is sufficient. Consider thermal resistance values provided in the datasheet for PCB layout planning, especially regarding junction-to-ambient ratings under different airflow conditions.

Specialty Logic Part Context

This device belongs to the MC100EP family of high-speed ECL components manufactured by onsemi. It is functionally equivalent to the standard MC100EP16 but adds the VCTRL pin for amplitude modulation. The 100 Series is characterized by temperature-compensated circuits designed for reliable operation in demanding digital communication environments.

Specialty Logic Replacement Considerations

MC100EP16VT offers similar functionality but includes internal input termination resistors. Standard MC100EP16 lacks the VCTRL pin and thus cannot adjust output swing. Verify pinout compatibility and electrical specifications before substituting any alternative part numbers.

Specialty Logic FAQ

How does the VCTRL pin affect the output amplitude?

The VCTRL pin controls the output amplitude relative to VCC. When VCTRL is less than or equal to VBB, the output achieves maximum swing. As VCTRL approaches VCC, the output swing decreases to its minimum level.

What is the purpose of the VBB pin?

VBB is an internally generated reference voltage. It can be used as a switching reference for unused differential inputs in single-ended configurations or to bias AC-coupled inputs. It should be decoupled with a 0.01 µF capacitor if used.

What happens to the output if the inputs are left open?

If the D or D* inputs are left open or pulled to VEE, the internal input clamping forces the Q output to default to a LOW state.