R&S RTO6, User Manual

Page: 1117 / 2677

Jitter analysis and clock data recovery
R&S
®
RTO6
1117 User Manual 1801.6687.02 ─ 05
The source cannot be changed if the CDR trigger is selected in the trigger setup. In
this case, the instrument triggers on the recovered clock; trigger source and CDR
source are the same.
Remote command:
CDR:HARDware:SOURce
on page 2515
Serial standard
The following predefined standards are currently available:
Serial standard Nom. bit rate
USB 2.0 480 Mbps
Displayport 1.1 1.296 Gbps
Fibre Channel 1x 1 Gbps
Fibre Channel 2x 2 Gbps
HDMI 1.2 1.32 Gbps
PCI-E_Gen_1 2.5 Gbps
SATA Gen 1 (1/500) 1.5 Gbps
SATA Gen 1 (1/1667) 3 Gbps
Remote command:
CDR:HARDware:SERStandard
on page 2516
Data level
Sets the threshold to determine the position of rising and falling edges in the data input
signal. The threshold level is also the trigger level for the specified input channel.
Remote command:
TRIGger<m>:LEVel<n>[:VALue]
on page 1391
Data edges
Selects the edges of the data stream that are used for the clock recovery.
●
"Either": Both positive and negative edges are used
●
"Positive / Negative": Only one edge direction is used. Use one of these settings if
the other edge might deliver unreliable results.
Remote command:
CDR:HARDware:ESLope
on page 2516
Nominal bit rate
Sets the quiescent frequency of the PLL. It corresponds to the data rate of the data
stream from which the clock is to be recovered.
Remote command:
CDR:HARDware:BITRate
on page 2516
Estimate
Estimates the bite rate once, for the current acquisition.
Clock data recovery