AND8090 Datasheet, PDF (1/20 Pages) ON Semiconductor – AC Characteristics of ECL Devices

AND8090/D
AC Characteristics of ECL
Devices
APPLICATION NOTE USAGE
This application note provides a general overview of the
AC characteristics that are specified on the
ON Semiconductor data sheets for MECL 10K™, 10H™,
100H, ECLinPS™, ECLinPS Lite™, and GigaComm™ SiGe
devices. Data sheet information takes precedence over this
application note if there are differences. This application
note includes the following information:
• AC Test Bench Information
• AC Characteristic Definitions
• AC Characteristic Test Methods
• AC Characteristic Examples
• AC Characteristic Symbols
• AC Characteristic References
TABLE OF CONTENTS
Lab Testing
Test Bench Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Test Initialization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Test Bench Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . 3
AC Test Boards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Signal Levels
AC HIGH and LOW Levels . . . . . . . . . . . . . . . . . . . . . . 5
Oscilloscope Averaging . . . . . . . . . . . . . . . . . . . . . . . . . 5
Input Levels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Output Levels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Output Swing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Signal Timing
Duty Cycle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Maximum Input Frequency . . . . . . . . . . . . . . . . . . . . . . 6
Differential Characteristics
Differential Input Application . . . . . . . . . . . . . . . . . . . . . 7
Unused Output Termination . . . . . . . . . . . . . . . . . . . . . . 7
Differential Crosspoint . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Input Voltage Swing . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Test Input Swing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
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APPLICATION NOTE
Differential Characteristics (continued)
Common Mode Range . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Differential Input Example . . . . . . . . . . . . . . . . . . . . . . . 8
Single−Ended Characteristics
Single−Ended Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Single−Ended 50% Points . . . . . . . . . . . . . . . . . . . . . . . 8
Single–Ended Input Voltage Range . . . . . . . . . . . . . . . 8
Single–Ended Input Test Level . . . . . . . . . . . . . . . . . . . 8
Differential Inputs (Single–Ended Mode) . . . . . . . . . . . 9
Timing Characteristics
Output Rise and Fall Times . . . . . . . . . . . . . . . . . . . . . . 9
Propagation Delay . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Skew (Duty Cycle) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Skew (Within Device) . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Skew (Device to Device) . . . . . . . . . . . . . . . . . . . . . . . 11
Minimum Input Pulse Width . . . . . . . . . . . . . . . . . . . . . 11
Setup and Hold Time . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Set and Reset Recovery Time . . . . . . . . . . . . . . . . . . 14
Jitter
Jitter Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Random Jitter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
RJ Confidence Levels . . . . . . . . . . . . . . . . . . . . . . . . . 15
Total RJ Test Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Test Equipment RJ Test Setup . . . . . . . . . . . . . . . . . . 16
DUT RJ Calculation . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Deterministic Jitter . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Total DJ Test Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Test Equipment DJ Test Setup . . . . . . . . . . . . . . . . . . 18
DUT DJ Calculation . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Symbols and Acronyms
Symbols and Acronyms Table . . . . . . . . . . . . . . . . . . . 19
References
AC Characteristic References . . . . . . . . . . . . . . . . . . . 20
© Semiconductor Components Industries, LLC, 2003
1
November, 2003 − Rev. 1
Publication Order Number:
AND8090/D