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SY89855U

Status: In Production

Features:

  • Select 1 of 4 differential inputs
  • Provides two copies of the selected input
  • Low power 260mW (VCC = 2.5V)
  • DC-to- >2.5Gbps data rate throughput
  • <410ps In-to-Q tpd
  • <180ps tr/ tf times
  • <10psPP total jitter (clock)
  • <1psRMS random jitter
  • <10psPP deterministic jitter
  • <0.7psRMS crosstalk-induced jitter
  • Unique, patent-pending input design minimizes crosstalk
  • Accepts an input signal as low as 100mV
  • Unique patented input termination and VT pin accepts DC- and AC-coupled inputs (CML, LVPECL, LVDS)
  • 800mV 100K LVPECL output swing
  • Power supply 2.5V ±5% or 3.3V ±10%
  • -40°C to +85°C 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 SY89855U is a 2.5V/3.3V precision, high-speed, 4:1 differential multiplexer with 100K LVPECL (800mV) compatible outputs, capable of handling clocks up to 2.5GHz and data streams up to 2.5Gbps. In addition, a 1:2 fanout buffer provides two copies of the selected inputs.The differential input includes Micrel's unique, 3-pin input termination architecture that allows customers to interface to any differential signal (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 outputs are 800mV LVPECL, (100K temperature compensated) with fast rise/fall times guaranteed to be less than 180ps.The SY89855U operates from a 2.5V ±5% supply or a 3.3V ±10% supply and is guaranteed over the full industrial temperature range of -40°C to +85°C. For applications that require higher performance, consider the SY58029U. The SY89855U is part of Micrel's highspeed, Precision Edge® product line.

Additional Features
    • Select 1 of 4 differential inputs
    • Provides two copies of the selected input
    • Low power 260mW (VCC = 2.5V)
    • Guaranteed AC performance over temperature and voltage:
      • DC-to- >2.5Gbps data rate throughput
      • <410ps In-to-Q tpd
      • <180ps tr/ tf times
    • Ultra low-jitter design:
      • <10psPP total jitter (clock)
      • <1psRMS random jitter
    • <10psPP deterministic jitter
    • <0.7psRMS crosstalk-induced jitter
    • Unique, patent-pending input design minimizes crosstalk
    • Accepts an input signal as low as 100mV
    • Unique patented input termination and VT pin accepts DC- and AC-coupled inputs (CML, LVPECL, LVDS)
    • 800mV 100K LVPECL output swing
    • Power supply 2.5V ±5% or 3.3V ±10%
    • -40°C to +85°C temperature range
    • Available in 32-pin (5mm x 5mm) QFN package
Parametrics
Name
Value
Product Type
Multiplexers
Description
4:02
Input
ANY
Output
LVPECL
Supply Voltage
2.5/3.3V
Max Freq (GHz)
2.5
Max Data (Gbps)
2.5
Max Prop Delay (ps)
410
Icc (mA)
65
Max Within Device Skew (ps)
20
OE
False
RPE
False
FSI
False
Input Mux
False
Input EQ
False
Channels
Single
Output Type
LVPECL
Output Voltage
2.5/3.3V

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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
SY89855UMG
0.064100
0.230833
32
VQFN
5x5x0.9mm
NiPdAu
e4
SY89855UMG-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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