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SY89846U - LVPECL 1:5 Fanout

General Description

The SY89846U is a 2.5/3.3V, 1:5 LVPECL fanout buffer with a 2:1 differential input multiplexer (MUX).

Key Features

  • Precision Edge®.
  • Selects between two inputs, and provides 5 precision LVPECL copies.
  • Fail-Safe Input.
  • Prevents outputs from oscillating when input is invalid.
  • Guaranteed AC performance over temperature and supply voltage:.
  • DC-to >1.5GHz throughput.
  • < 900ps Propagation Delay (IN-to-Q).
  • < 250ps Rise/Fall times.
  • Ultra-low jitter design:.
  • 150fs RMS phase jitter (Typ).
  • 0.7psRMS MUX crosstalk induced jitter.
  • Unique, paten.

📥 Download Datasheet

Datasheet Details

Part number SY89846U
Manufacturer Micrel Semiconductor
File Size 764.59 KB
Description LVPECL 1:5 Fanout
Datasheet download datasheet SY89846U Datasheet

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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SY89846U 1.5GHz Precision, LVPECL 1:5 Fanout with 2:1 MUX and Fail Safe Input with Internal Termination Precision Edge® General Description The SY89846U is a 2.5/3.3V, 1:5 LVPECL fanout buffer with a 2:1 differential input multiplexer (MUX). A unique Fail-Safe Input (FSI) protection prevents metastable output conditions when the selected input clock fails to a DC voltage (voltage between the pins of the differential input drops significantly below 100mV). The differential input includes Micrel’s unique, 3-pin internal termination architecture that can interface to any differential signal (AC- or DC-coupled) as small as 100mV (200mVPP) without any level shifting or termination resistor networks in the signal path.