SY89251VMG-TR

Overview

The SY89251VMG-TR is an enhanced differential PECL/ECL receiver and buffer manufactured by Microchip Technology (originally Micrel). It operates on a single supply voltage of either 3.3V or 5V, with a power supply current of 46 mA. The device features a propagation delay of 250 ps to the /Q output and up to 780 ps to the QHG outputs. It includes a data-synchronous enable input for glitchless gating of the differential outputs. The component is housed in an ultra-small 8-pin DFN package measuring 2mm x 2mm.

Feature Summary

• Data-synchronous enable/disable functionality provides complete glitchless gating of the QHG and /QHG outputs.
• Includes a VBB reference output pin serving as a DC bias for AC-coupling applications.
• Operates with high voltage gain suitable for pulse amplifier and limiting amplifier roles.
• Designed for crystal oscillator applications allowing synchronous gating without adding extra counts.

Applications

• Oscillator modules
• Pulse amplifier circuits
• Limiting amplifier configurations

Procurement Notes

Verify that the specific ordering suffix matches the required tape and reel packaging configuration. Confirm the lead finish specification aligns with assembly requirements, noting the distinction between standard and Pb-Free variants. Ensure the industrial temperature range meets the operational environment constraints before finalizing procurement orders.

Selection Notes

Select this component when a compact footprint is critical, as it offers a 70% smaller area compared to functional equivalents like the SY100EL16VC. Choose this part if synchronized glitchless gating of differential outputs is required alongside a dedicated feedback output. Consider the 250ps propagation delay and low power consumption for high-frequency timing signal distribution.

Part Context

This component belongs to the SY89251V series of enhanced differential receivers. It is functionally equivalent to the SY100EL16VC and SY89250V but distinguishes itself through an active HIGH enable pin and a significantly reduced physical footprint. The device integrates internal pull-up and pull-down resistors on key control pins to simplify interface design.

Replacement Considerations

The SY89251VMG-TR is functionally equivalent to the SY100EL16VC and the SY89250V. Designers should note that these alternatives lack the active HIGH enable pin feature present in the SY89251V series.