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SY89851U

Status: In Production

Features:

  • Precision 1:2, 800mV LVPECL fanout buffer
  • Low power consumption: 80mW typ. (2.5V)
  • – DC to >3GHz clock throughput
  • – <340ps propagation delay
  • – <180ps rise/fall time
  • – <20ps output-to-output skew
  • – <1psRMS random jitter
  • – <10psPP deterministic jitter
  • – <10ps PP total jitter (clock)
  • Unique, patented input termination and VT pin accepts DC- and AC-coupled inputs (CML, LVPECL, LVDS)
  • 100K LVPECL-compatible outputs
  • Power supply 2.5V ±5% or 3.3V ±10%
  • –40°C to +85°C industrial temperature range
  • Available in 16-pin (3mm x 3mm) MLF® package
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Overview
Documents
Development Environment
RoHS Information
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Device Overview

Summary

The SY89851U is a low jitter, low skew, high-speed 1:2 differential fanout buffer optimized for precision telecom and enterprise server distribution applications. The SY89851U distributes clock frequencies from DC to >3GHz, and data rates to 2.5Gbps guaranteed over temperature and voltage.The SY89851U differential input includes Micrel's unique, 3-pin input termination architecture that directly interfaces 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. The outputs are 800mV, 100Kcompatible LVPECL with extremely fast rise/fall time guaranteed to be less than 180ps.The SY89851U operates from a 2.5V ±5% or 3.3V ±10% supply and is guaranteed over the full industrial temperature range of –40°C to +85°C. The SY89851U is part of Micrel's high-speed, Precision Edge® product line.

Additional Features
    • Precision 1:2, 800mV LVPECL fanout buffer
    • Low power consumption: 80mW typ. (2.5V)
    • Guaranteed AC performance over temperature and voltage:
      • – DC to >3GHz clock throughput
      • – <340ps propagation delay
      • – <180ps rise/fall time
      • – <20ps output-to-output skew
    • Ultra-low jitter design:
      • – <1psRMS random jitter
      • – <10psPP deterministic jitter
      • – <10ps PP total jitter (clock)
    • Unique, patented input termination and VT pin accepts DC- and AC-coupled inputs (CML, LVPECL, LVDS)
    • 100K LVPECL-compatible outputs
    • Power supply 2.5V ±5% or 3.3V ±10%
    • –40°C to +85°C industrial temperature range
    • Available in 16-pin (3mm x 3mm) MLF® package
Parametrics
Name
Value
Product Type
Fanout & Buffer and Drivers
Description
1:2
Input
ANY
Output
LVPECL
Supply Voltage
2.5/3.3
Max Freq (GHz)
3
Max Data (Gbps)
2.5
Max Prop Delay (ps)
340
Icc (mA)
32
Max Within Device Skew (ps)
20
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
SY89851UMG
0.021300
0.050000
16
VQFN
3x3x1.00mm
NiPdAu
e4
SY89851UMG-TR
0.021300
0.801700
16
VQFN
3x3x1.00mm
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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