SY10EL33ZG

Overview

The SY10EL33ZG is a 3.3V ECL ÷4 divider integrated circuit manufactured by Microchip Technology. It operates within a power supply voltage range of 3.0V to 3.8V and supports toggle frequencies up to 4.2 GHz. The device features a typical propagation delay of 640ps from clock input to output and 460ps from reset to output. It includes internal 75kΩ input pull-down resistors and provides differential, single-ended, or AC-coupled interface options via the VBB reference voltage pin. The component is housed in an 8-lead SOIC package.

Feature Summary

• Integrated ÷4 divider functionality with asynchronous reset capability for system synchronization
• Supports differential, single-ended, and AC-coupled clock interfaces through dedicated inputs and VBB reference voltage
• Includes internal 75kΩ input pull-down resistors to simplify circuit design

Applications

• Clock signal division in high-speed digital systems
• Frequency synthesis circuits requiring precise timing references
• Data communication equipment utilizing PECL or NECL logic standards

Procurement Notes

Verify that the specific part number SY10EL33ZG matches the required industrial temperature range (-40°C to +85°C) and Pb-free NiPdAu finish specifications. Confirm compatibility with the 8-lead SOIC (Z8-1) package dimensions and ensure that the ordering suffix aligns with the desired packaging format, such as tube or reel quantities, as defined by the manufacturer's product identification system.

Selection Notes

Select this component when a 3.3V ECL ÷4 divider is required for applications demanding high bandwidth output transitions and toggle frequencies up to 4.2 GHz. Ensure the design accommodates the specified propagation delays and utilizes the VBB pin correctly for biasing if single-ended or AC-coupled inputs are employed. Verify that the operating environment remains within the -40°C to +85°C temperature range for guaranteed electrical characteristics.

Part Context

This device belongs to the SY10/100EL33L family of Precision Edge dividers designed for high-frequency clock distribution. It serves as a replacement for legacy Micrel parts and is intended for use in systems requiring reliable frequency division under strict timing constraints. The integration of internal pull-downs and flexible input coupling options distinguishes it within the broader category of ECL logic components.

Replacement Considerations

SY100EL33LZG

FAQ

How should the VBB pin be handled if not used as an input bias?

If the VBB pin is not utilized for input biasing on the EL33L, it should be left open.

What is the function of the Reset pin on the SY10EL33ZG?

The Reset pin is asynchronous and is asserted on the rising edge, allowing for the synchronization of multiple dividers in a system upon power-up.