:JSAMemory:PLLoop:OJTF:BWIDth?
Instrument:
N1000A
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 | 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, L-RND package license (includes feature F-JIT Enhanced Jitter Analysis) is required.
Requires FlexDCA revision A.02.50 and above.