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SY58021U

Status: In Production

Features:

  • Precision 1:4 LVPECL fanout buffer
  • 70fsRMS phase jitter (typical)
  • Accepts an input signal as low as 100mV
  • Unique input termination and VT pin accepts DC-coupled and AC-coupled differential inputs: LVPECL, LVDS, and CML
  • 100k LVPECL-compatible 800mV swing output
  • Power supply 2.5V ±5% and 3.3V ±10%
  • -40°C to +85°C temperature range
  • Available in 16-pin (3mm x 3mm) QFN package
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Overview
Documents
Development Environment
RoHS Information
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Device Overview

Summary

The SY58021U is a 2.5V/3.3V precision, high-speed, fully differential 1:4 LVPECL fanout buffer. Optimized to provide four identical output copies with less than 15ps output skew and only 70 fsRMS phase jitter, the SY58021U can process clock signals as fast as 4GHz.The differential input includes Micrel's unique, 3-pin input termination architecture interfaces to differential LVPECL, CML, and LVDS signals (AC- or DC-coupled) as small as 100mV without any level-shifting or termination resistor networks in the signal path. For AC-coupled input interface applications, an on-board output reference voltage (VREF-AC) is provided to bias the VT pin. The outputs are 100k LVPECL compatible, with extremely fast rise/fall times guaranteed to 70fs.The SY58021U operates from a 2.5V ±5% supply or 3.3V ±10% supply and is guaranteed over the full industrial temperature range (-40°C to +85°C). For applications that require faster rise/fall times, or greater bandwidth, consider the SY58022U 1:4 fanout buffer with 400mV LVPECL output swing, or the SY58020U 1:4 CML fanout buffer. The SY58021U is part of Micrel's high-speed, Precision Edge® product line.

Additional Features
    • Precision 1:4 LVPECL fanout buffer
    • Low jitter performance:
      • 70fsRMS phase jitter (typical)
    • Accepts an input signal as low as 100mV
    • Unique input termination and VT pin accepts DC-coupled and AC-coupled differential inputs: LVPECL, LVDS, and CML
    • 100k LVPECL-compatible 800mV swing output
    • Power supply 2.5V ±5% and 3.3V ±10%
    • -40°C to +85°C temperature range
    • Available in 16-pin (3mm x 3mm) QFN package
Parametrics
Name
Value
Product Type
Fanout & Buffer and Drivers
Description
1:4
Input
ANY
Output
LVPECL
Supply Voltage
2.5/3.3
Max Freq (GHz)
4
Max Data (Gbps)
5
Max Prop Delay (ps)
300
Icc (mA)
125
Max Within Device Skew (ps)
15
OE
False
RPE
False
FSI
False
Input Mux
False
Input EQ
False
Output Type
LVPECL

Documents

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Data Sheets

  
674KB

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RoHS Information

Part Number
Device Weight (g)
Shipping Weight (grams)
Lead Count
Package Type
Package Width
Solder Composition
JEDEC Indicator
RoHS
China EFUP
SY58021UMG
0.021300
0.050000
16
VQFN
3x3x1.00mm
NiPdAu
e4
SY58021UMG-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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