Microchip logo
  • All
  • Products
  • Documents
  • Applications Notes
product primary image

SY89464U

Status: In Production

Features:

  • Selects between two sources, and provides 10 precision LVPECL copies
  • Wide operating frequency: 1kHz to >1.5GHz
  • <1100ps In-to-Out tpd
  • <220ps tr/tf
  • Unique, patent-pending MUX input isolation design minimizes adjacent channel crosstalk
  • Fail-Safe Input prevents oscillations
  • Ultra-low jitter design:
  • <1psRMS random jitter
  • <1psRMS cycle-to-cycle jitter
  • <10psPP total jitter (clock)
  • <0.7psRMS MUX crosstalk induced jitter
  • Unique patented internal termination and VT pin accepts DC- and AC-coupled inputs (CML, PECL, LVDS)
  • 800mV LVPECL output
  • 2.5V ±5% or 3.3V ±10% supply voltage
  • Output enable
  • -40°C to +85°C industrial temperature range
  • Available in 44-pin (7mm x 7mm) QFN package
View More
Overview
Documents
Development Environment
RoHS Information
Add To Cart

Device Overview

Summary

The SY89464U is a low jitter 1:10 LVPECL fanout buffer with a 2:1 differential input multiplexer (MUX) optimized for redundant source switchover applications. Unlike standard multiplexers, the SY89464U's unique 2:1 Runt Pulse Eliminator (RPE) MUX prevents any short cycles or "runt" pulses during switchover. In addition, 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 below 100mV).The differential input includes Micrel's unique, 3-pin internal termination architecture that allows customers to 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. The outputs are 800mV, 100K-compatible LVPECL with fast rise/fall times guaranteed to be less than 220ps.The SY89464U 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 SY89464U is part of Micrel's high-speed, Precision Edge® product line.

Additional Features
    • Selects between two sources, and provides 10 precision LVPECL copies
    • Guaranteed AC performance over temperature and supply voltage:
      • Wide operating frequency: 1kHz to >1.5GHz
      • <1100ps In-to-Out tpd
      • <220ps tr/tf
    • Unique, patent-pending MUX input isolation design minimizes adjacent channel crosstalk
    • Fail-Safe Input prevents oscillations
    • Ultra-low jitter design:
      • <1psRMS random jitter
      • <1psRMS cycle-to-cycle jitter
      • <10psPP total jitter (clock)
      • <0.7psRMS MUX crosstalk induced jitter
    • Unique patented internal termination and VT pin accepts DC- and AC-coupled inputs (CML, PECL, LVDS)
    • 800mV LVPECL output
    • 2.5V ±5% or 3.3V ±10% supply voltage
    • Output enable
    • -40°C to +85°C industrial temperature range
    • Available in 44-pin (7mm x 7mm) QFN package
Parametrics
Name
Value
Product Type
Fanout & Buffer and Drivers
Description
2:10 RPE
Input
ANY
Output
LVPECL
Supply Voltage
2.5/3.3
Max Freq (GHz)
2
Max Prop Delay (ps)
1150
Icc (mA)
120
Max Within Device Skew (ps)
25
OE
False
RPE
True
FSI
True
Input Mux
True
Input EQ
False
Output Type
LVPECL

Documents

Jump to:

Data Sheets

  
730KB

User Guides


Development tools data is currently unavailable.

RoHS Information

Part Number
Device Weight (g)
Shipping Weight (Kg)
Lead Count
Package Type
Package Width
Solder Composition
JEDEC Indicator
RoHS
China EFUP
SY89464UMY
0.127600
0.722685
44
VQFN
7x7x0.9mm
Matte Tin
e3
SY89464UMY-TR
0.127600
0.620478
44
VQFN
7x7x0.9mm
Matte Tin
e3
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.

Buy from Microchip

Grid
View
Table
View
Filter:
Apply
Clear
Only show products with samples
Product
Leads
Package Type
Temp Range
Packing Media
5K Pricing
Buy