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SY89467U

Status: In Production

Features:

  • Selects between two inputs, and provides 20 precision LVPECL copies
  • Prevents outputs from oscillating when input is invalid
  • DC-to >1.5 GHz throughput
  • <1200ps Propagation Delay (In-to-Q)
  • 270ps Rise/Fall times
  • <1psRMS random jitter
  • <1psRMS cycle-to-cycle jitter
  • <10psPP total jitter (clock)
  • <0.7psRMS MUX crosstalk induced jitter
  • Unique, patented MUX input isolation design minimizes adjacent channel crosstalk
  • Unique patented internal termination and VT pin accepts DC- and AC-coupled inputs (CML, PECL, LVDS)
  • Wide input voltage range: VCC to GND
  • 2.5V ±5% or 3.3V ±10% supply voltage
  • -40°C to +85°C industrial temperature range
  • Available in 64-pin TQFP package
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Overview
Documents
Development Environment
RoHS Information
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Device Overview

Summary

The SY89467U is a 2.5/3.3V, 1:20 LVPECL fanout buffer with a 2:1 differential input multiplexer (MUX). A unique Fail-Safe Input (FSI) protection prevents metastable output conditions when the selected input clock fails to a DC voltage (when voltage between the pins of the differential input drops significantly below 100mV).The differential input includes Micrel's unique, 3-pin internal termination architecture that can 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, LVPECL with fast rise/fall times guaranteed to be less than 270ps.The SY89467U 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 SY89467U is part of Micrel's high-speed, Precision Edge® product line.

Additional Features
    • Selects between two inputs, and provides 20 precision LVPECL copies
    • Fail-Safe Input
      • Prevents outputs from oscillating when input is invalid
    • Guaranteed AC performance over temperature and supply voltage:
      • DC-to >1.5 GHz throughput
      • <1200ps Propagation Delay (In-to-Q)
      • 270ps Rise/Fall times
    • Ultra-low jitter design:
      • <1psRMS random jitter
    • <1psRMS cycle-to-cycle jitter
    • <10psPP total jitter (clock)
    • <0.7psRMS MUX crosstalk induced jitter
    • Unique, patented MUX input isolation design minimizes adjacent channel crosstalk
    • Unique patented internal termination and VT pin accepts DC- and AC-coupled inputs (CML, PECL, LVDS)
    • Wide input voltage range: VCC to GND
    • 2.5V ±5% or 3.3V ±10% supply voltage
    • -40°C to +85°C industrial temperature range
    • Available in 64-pin TQFP package
Parametrics
Name
Value
Product Type
Fanout & Buffer and Drivers
Description
2:20
Input
ANY
Output
LVPECL
Supply Voltage
2.5/3.3
Max Freq (GHz)
1.5
Max Prop Delay (ps)
1200
Icc (mA)
120
Max Within Device Skew (ps)
20
OE
False
RPE
False
FSI
True
Input Mux
True
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 Width
Solder Composition
JEDEC Indicator
RoHS
China EFUP
SY89467UHY
0.261300
1.607500
64
TQFP
10x10x1.0mm
Matte Tin
e3
SY89467UHY-TR
0.261300
0.904600
64
TQFP
10x10x1.0mm
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.

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