1Overview
28 Keysight E6961A User Guide and Method of Implementation
Test Mode 2. MASTER Clock Frequency and Jitter Tests
Test Setup
This test may be run using either a differential output or single-ended output from
the transmitter (MDI). Refer to “General Test Setup” on page 14 for connection
details.
Specification References
[1] BroadR-Reach Physical Layer Transceiver Specification, v3.2, Section 5.4.5.
[2] BroadR-Reach Physical Layer Transceiver Specification, v3.2, Section 5.2.
[3] BroadR-Reach Physical Layer Transceiver Specification, v3.2, Section 5.4.3.
Transmit Clock Frequency (MASTER) Test Information
This test measures the frequency of the transmitter clock when the PHY is
operating in MASTER mode.
Reference [1] specifies the symbol transmission rate of a compliant PHY. The
symbol transmission rate of the MASTER PHY shall be within the range if 66 2/3
MHz ±100 ppm.
The Reference [2] specifies that Test Mode 2 shall transmit the data symbol
sequence {+1,-1} repeatedly on the channel. The transmitter shall time the
transmitted symbols from a symbol rate clock in the MASTER timing mode. The
measured data rate of the Test Mode 2 signal is thus equal to the MASTER
Transmit Clock Frequency of the PHY.
Use the software supplied with your transmitter PHY to control the Device Under
Test.
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