SY89845U Datasheet PRECISION CML RUNT PULSE ELIMINATOR 2:1 MUX

Manufacturer: Micrel Semiconductor

SY89845U precision cml runt pulse eliminator 2:1 mux by Micrel Semiconductor - Datasheet Preview

Datasheet Details

Part number	SY89845U
Manufacturer	Micrel Semiconductor
File Size	553.98 KB
Description	PRECISION CML RUNT PULSE ELIMINATOR 2:1 MUX
Download	SY89845U Download (PDF)

General Description

The SY89845U is a low jitter CML, 2:1 differential input multiplexer (MUX) optimized for redundant source switchover applications.

Unlike standard multiplexers, the SY89845U unique 2:1 Runt Pulse Eliminator (RPE) MUX prevents any short cycles or “runt” pulses during switchover.

In addition, a unique Fail-Safe Input protection prevents metastable conditions when the selected input clock fails to a DC voltage (voltage between the pins of the differential input drops below 100mV).

Overview

SY89845U Precision CML Runt Pulse Eliminator 2:1 MUX with 1:2 Fanout and Internal Termination.

Key Features

Precision Edge®.
Selects between two sources, and provides a glitchfree, stable CML output.
Guaranteed AC performance over temperature and supply voltage:.
Wide operating frequency: 1kHz to >1.5GHz.
< 840ps In-to-Out tpd.
< 80ps tr/tf.
Unique, patent-pending input isolation design minimizes crosstalk.
Fail-Safe Input prevents oscillations.
Ultra-low jitter design:.

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