SY100EP14UK4I-TR

Clock Buffers, Drivers Overview

The SY100EP14UK4I-TR is a high-speed, 2 GHz differential PECL/ECL 1:5 fanout buffer optimized for ultra-low skew applications. It features a 2:1 input multiplexer for redundant clock switchover and a synchronous enable pin to prevent runt clock pulses. The device operates with flexible supply voltages of 2.5V, 3.3V, or 5V and includes an internal VBB reference for single-ended or AC-coupled inputs. It accepts PECL, LVPECL, ECL, LVECL, and HSTL logic inputs. Within-device skew is guaranteed to be less than 25ps over the operating temperature range.

Clock Buffers, Drivers Feature Summary

• Maximum frequency greater than 2 GHz
• Within-device skew less than 25 ps
• 2:1 Differential MUX input
• Flexible supply voltage: 2.5V/3.3V/5V

Clock Buffers, Drivers Applications

• Redundant clock switchover systems
• Ultra-low skew clock distribution networks
• High-speed data acquisition synchronization

Clock Buffers, Drivers Procurement Notes

Verify that the ordering suffix 'I' corresponds to the industrial temperature range (-40°C to +85°C) as specified in the datasheet's ordering information table. Confirm the 'TR' suffix indicates tape and reel packaging. Ensure compatibility with the specific power supply voltage (2.5V, 3.3V, or 5V) required by the target application circuit.

Clock Buffers, Drivers Selection Notes

Select this component when low skew (<25ps) and high-frequency operation (>2GHz) are critical. The integrated 2:1 MUX simplifies designs requiring clock redundancy without external switching logic. The synchronous enable feature ensures glitch-free output transitions during state changes. Verify termination resistor values based on the chosen supply voltage to maintain signal integrity.

Clock Buffers, Drivers Part Context

This part belongs to the Precision Edge® and ECL Pro™ families from Micrel, now Microchip Technology. It is specifically designed for high-speed clock synchronization tasks where minimal jitter and skew are paramount. The industrial grade variant ensures reliable performance across a wider temperature spectrum compared to commercial versions.

Clock Buffers, Drivers Replacement Considerations

The SY100EP14UK4C is the commercial temperature version of the same device. For lead-free requirements, the SY100EP14UK4G series serves as the environmentally compliant alternative within the same package and functional specification.

Clock Buffers, Drivers FAQ

How should the VBB pin be connected for single-ended PECL inputs?

Connect the VBB pin to the unused /CLK pin and bypass it to VCC through a 0.01µF capacitor.

What is the function of the /EN pin?

The /EN pin is a synchronous enable that forces outputs into a fixed logic state only after the outputs are in a LOW state, preventing runt clock pulses.

What is the maximum within-device skew?

The within-device skew is guaranteed to be less than 25ps over the operating temperature and supply voltage range.