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SY89858U

Status: In Production

Features:

  • Precision 1:8, LVPECL fanout buffer
  • Low power: 238mW (2.5V)
  • Wide operating frequency: DC to 2.0GHz
  • <380ps In-to-Out tpd
  • <200ps tr/tf
  • <30ps skew
  • 710fsRMS phase jitter (typ.)
  • 100k LVPECL compatible outputs
  • Fully differential inputs/outputs
  • Accepts an input signal as low as 100mV (200mVpp)
  • Unique patent pending input termination and VT pin accepts DC-coupled and AC-coupled differential inputs (LVPECL, LVDS, and CML)
  • Power supply 2.5V ±5% or 3.3V ±10%
  • -40°C to +85°C industrial temperature range
  • Available in 32-pin (5mm x 5mm) QFN package
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Overview
Documents
Development Environment
RoHS Information
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Device Overview

Summary

The SY89858U is a 2.5V/3.3V precision, high-speed, fully differential LVPECL 1:8 fanout buffer optimized to provide eight identical output copies with less than 30ps of skew and less than 10pspp total jitter. It can process clock signals as fast as 2.0GHz.The differential input includes Micrel's unique, 3-pin input termination architecture that allows the SY89858U to directly interface to LVPECL, CML, and LVDS differential signals (AC- or DC-coupled) as small as 100mV without any level shifting or termination resistor networks in the signal path. The result is a clean, stub-free, low-jitter interface solution. The LVPECL (100k temperature compensated) outputs feature 800mV typical swing into 50Ω loads, and provide fast rise/fall times guaranteed to be less than 200ps.The SY89858U operates from a 2.5V ±5% supply or 3.3V ±10% supply and is guaranteed over the full industrial temperature range of -40°C to +85°C. For applications that require a higher speed fanout buffer, consider the SY58032U. The SY89858U is part of Micrel's high-speed, Precision Edge® product line.

Additional Features
    • Precision 1:8, LVPECL fanout buffer
    • Low power: 238mW (2.5V)
    • Guaranteed AC performance over temperature and supply voltage:
      • Wide operating frequency: DC to 2.0GHz
      • <380ps In-to-Out tpd
      • <200ps tr/tf
      • <30ps skew
    • Ultra-low jitter design:
      • 710fsRMS phase jitter (typ.)
    • 100k LVPECL compatible outputs
    • Fully differential inputs/outputs
    • Accepts an input signal as low as 100mV (200mVpp)
    • Unique patent pending input termination and VT pin accepts DC-coupled and AC-coupled differential inputs (LVPECL, LVDS, and CML)
    • Power supply 2.5V ±5% or 3.3V ±10%
    • -40°C to +85°C industrial temperature range
    • Available in 32-pin (5mm x 5mm) QFN package
Parametrics
Name
Value
Product Type
Fanout & Buffer and Drivers
Description
1:8
Input
ANY
Output
LVPECL
Supply Voltage
2.5/3.3
Max Freq (GHz)
3
Max Prop Delay (ps)
380
Icc (mA)
95
Max Within Device Skew (ps)
30
OE
False
RPE
False
FSI
False
Input Mux
False
Input EQ
False
Output Type
LVPECL

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RoHS Information

Part Number
Device Weight (g)
Shipping Weight (Kg)
Lead Count
Package Type
Package Dimension
Solder Composition
JEDEC Indicator
RoHS
China EFUP
SY89858UMG
0.064100
0.230833
32
VQFN
5x5x0.9mm
NiPdAu
e4
SY89858UMG-TR
0.064100
0.214000
32
VQFN
5x5x0.9mm
NiPdAu
e4
To see a complete listing of RoHS data for this device, please Click here
Shipping Weight = Device Weight + Packing Material weight. Please contact sales office if device weight is not available.

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