1000BASE-T/100BASE-TX/10BASE-T Physical Layer Compliance Tests Manual
Intel Confidential
85
10Base-T Transmitter Output Timing Jitter without Cable Model
22 10Base-T Transmitter Output Timing
Jitter without Cable Model
ANSI Section 1411.10.13
22.1
Test Purpose
To verify the jitter added by the UUT when directly driving a 100
Ω
resistive load.
22.2
Specification
The jitter added to the signal on the DO circuit as it propagates through the UUT, driving a 100-
ohm resistive load, shall be no more than 11.0 ns.
22.3
Test Equipment
•
Digitizing Oscilloscope (100 MHz or greater bandwidth)
•
Differential Probes (100 MHz or greater bandwidth)
•
CAT 5 twisted pair cable (under 2 inches in length)
22.4
Test Fixtures
•
100
Ω
UTP test load (
)
22.5
Test Procedure
1. Insert CAT 5 cable into UUT and attach differential probe to the test load as shown in