SY100EPT28LKG-TR

Translators, Level Shifters Overview

The SY100EPT28LKG-TR is a dual-directional voltage level translator from the ECL Pro series, manufactured by Microchip Technology. It integrates LVPECL-to-LVTTL and LVTTL-to-differential LVPECL translation within an 8-pin MSOP package. The device operates on a single +3.3V power supply with a tolerance of ±10%. It supports maximum frequencies exceeding 275MHz for LVTTL and 700MHz for LVPECL toggling. Propagation delays are less than 2ns for LVPECL-to-LVTTL conversion and under 600ps for LVTTL-to-LVPECL conversion. The component functions reliably across an industrial temperature range of –40°C to +85°C.

Translators, Level Shifters Feature Summary

• Provides bidirectional translation between Low Voltage TTL (LVTTL) and differential Low Voltage Positive ECL (LVPECL) logic levels.
• Operates exclusively on a single +3.3V power supply, eliminating the need for negative voltage rails.
• Features internal 75kΩ pull-down resistors on the differential LVPECL inputs to ensure defined states.
• Includes temperature compensation to maintain constant logic levels throughout the operating temperature range.

Translators, Level Shifters Applications

• Backplane signal transmission and reception where mixed logic families are present
• Interfacing high-speed LVPECL sources with low-voltage TTL destinations
• Converting LVTTL control signals to differential LVPECL outputs for noise immunity

Translators, Level Shifters Procurement Notes

Verify that the specific ordering suffix matches the required package type and termination finish. Confirm RoHS compliance status if lead-free components are mandated for the assembly process. Ensure the procurement channel provides valid traceability documentation for the ECL Pro series components.

Translators, Level Shifters Selection Notes

Select this component when a compact solution is needed to bridge LVTTL and LVPECL domains without requiring multiple discrete translators. The integrated design reduces board space compared to using separate unidirectional devices. Verify that the system timing requirements align with the specified propagation delay limits for both conversion directions.

Translators, Level Shifters Part Context

This part belongs to the SY10/100EPT28L family, which combines two distinct translation functions in one package. The '100' designation indicates inclusion of temperature compensation features. Originally developed by Micrel, Inc., the product line was acquired by Microchip Technology, which continues to manufacture and support these ECL Pro series components.

Translators, Level Shifters Replacement Considerations

SY10EPT28LKG-TR: Identical functional specifications with standard Micrel marking instead of the 100-series marking.

Translators, Level Shifters FAQ

Does the device require external termination resistors?

Yes, the datasheet recommends parallel or three-resistor Y-termination networks for the LVPECL lines to ensure proper signal integrity and impedance matching.

What is the input configuration for the LVPECL side?

The LVPECL inputs are differential and include internal 75kΩ pull-down resistors to define the state when no signal is applied.