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Semiconductor Components Industries, LLC, 2003
November, 2003 Rev. 1
1
Publication Order Number:
AND8090/D
AND8090/D
AC Characteristics of ECL
Devices
APPLICATION NOTE USAGE
This application note provides a general overview of the
AC
characteristics
that
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
are
specified
on
the
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
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Differential Characteristics (continued)
Common Mode Range
7
. . . . . . . . . . . . . . . . . . . . . . . . . .
Differential Input Example
8
. . . . . . . . . . . . . . . . . . . . . . .
SingleEnded Characteristics
SingleEnded Inputs
8
. . . . . . . . . . . . . . . . . . . . . . . . . . .
SingleEnded 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
. . . . . . . . . . . . . . . . . . .
APPLICATION NOTE
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