:JSAMemory:PLLoop:OJTF:BWIDth?

Instrument:
DCA-X
DCA-M
Instrument mode:
Scope
Eye
Jitter

Deprecated command. For FlexDCA revision A.06.70 and above, use the :JSAMemory:PLLoop:OJTF:BANDwidth? command.

Query Syntax

:JSAMemory:PLLoop:OJTF:BWIDth?

Query Response

Returns <bandwidth> which is a double.

Description

From the JSA memory database, returns the clock recovery emulation's bandwidth of the Observed Jitter Transfer Function (OJTF) for a first- or second-order PLL. The following table shows the bandwidth settings for some standards. The maximum bandwidth setting is 20 MHz. Use the :JSAMemory:PLLoop:JTF:BWIDth query to return the bandwidth for an Jitter Transfer Function (JTF).

Standard JTF Bandwidth Settings
Standard First-Order Loop Filter Second-Order Loop Filter
SAS 1.5 Gb/s 900.0 kHz 900.0 kHz
SAS-SSC 1.5 Gb/s 2.328 MHz
SATA 1.5 Gb/s 4.097 MHz
SAS 3.0 Gb/s 1.800 MHz 1.800 MHz
SAS-SSC 3.0 Gb/s 3.291 MHz
SATA 3.0 Gb/s 1.791 MHz
SAS 6.0 Gb/s 3.600 MHz 3.600 MHz
SAS-SSC 6.0 Gb/s 4.655 MHz
SATA 6.0 Gb/s 8.194 MHz
QPI 5.692 MHz
USB 3.0 10.03 MHz

JSA requires an 86108A/B module with Option JSA. To use JSA in Jitter Mode, 86100D Option 200 Enhanced Jitter Analysis or N1010A Option 200 Enhanced Jitter Analysis is required.

Requires FlexDCA revision A.02.50 and above.