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Product Detailed Parameters
- Description：IC RCVR/BUFFER PECL/ECL 8-MLF
- Series：SY89
- Mfr：Microchip Technology
- Package：Tape & Reel (TR),Bulk
- Logic Type：Differential Receiver
- Supply Voltage：3.3V, 5V
- Number of Bits：-
- Operating Temperature：-40°C ~ 85°C
- Mounting Type：Surface Mount
- Package / Case：8-VFDFN Exposed Pad, 8-MLF®
- Supplier Device Package：8-MLF® (2x2)
- Grade：-
- Qualification：-
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Overview
The SY89250VMG-TR is a differential PECL/ECL receiver and buffer manufactured by Microchip Technology. It operates on 3.3V or 5V power supplies with an operating temperature range of -40°C to +85°C. The device features a propagation delay of 250ps, a maximum input frequency of 2.5GHz, and a supply current of 46mA. It is housed in an ultra-small 8-pin MLF package measuring 2mm x 2mm.
Feature Summary
- Provides data-synchronous enable/disable functionality for glitchless gating of the QHG and /QHG outputs.
- Includes a VBB output pin serving as a DC bias reference for AC-coupling applications.
- Features very high voltage gain suitable for pulse amplifier and limiting amplifier configurations.
Applications
- Oscillator modules
- Pulse amplifier circuits
- Limiting amplifier designs
Procurement Notes
Verify that the component matches the specific Pb-free NiPdAu lead finish indicated by the 'G' suffix in the part number. Confirm the tape and reel packaging format aligns with automated assembly requirements. Ensure the industrial temperature rating meets the operational environment specifications.
Selection Notes
Select this component when a compact footprint is required for high-speed signal routing. It serves as a functional equivalent to older models but offers a significantly reduced physical size. Consider the synchronous enable feature if precise timing control without glitches is necessary for the design.
Part Context
This device belongs to the Precision Edge product line from Micrel, which was acquired by Microchip Technology. It represents an evolution in high-speed logic buffers designed to minimize board space while maintaining robust signal integrity for demanding digital communication interfaces.
Replacement Considerations
The datasheet identifies the SY100EL16VC as a functionally equivalent alternative. Designers should verify pin compatibility and electrical characteristics before substituting components in existing layouts.
FAQ
How does the /EN input affect the outputs?
The /EN input synchronizes with the data signal to provide glitchless gating of the QHG and /QHG outputs. It has no influence on the inverted /Q output.
What is the purpose of the VBB pin?
The VBB pin provides a reference bias voltage (typically VCC minus 1.3V) used as a DC bias for AC-coupling to the device's input.
