:CHANnel:SCRecovery:PLLoop:JTF:PEAKing
Instrument:
UXR Scope
Meas. mode:
Scope
Eye
Flex Apps:
FlexDCA
FlexRT
Command Syntax
:CHANnelN:SCRecovery:PLLoop:JTF:PEAKing <peaking>
<peaking> is a double.
Where N identifies a specific channel and must be selected from {1:8}{A|B|C|D}. For example, CHANnel3C.
Query Syntax
:CHANnelN:SCRecovery:PLLoop:JTF:PEAKing?
Description
For the selected channel's software clock recovery, defines the peaking of a second-order PLL's Jitter Transfer Function (JTF). The following table shows the peaking settings for some standards.
JTF for 2nd Order PLLs
| Standard | Peaking |
|---|---|
| SAS 1.5 Gb/s | 0 dB |
| SAS-SSC 1.5 Gb/s | 1.57 dB |
| SATA 1.5 Gb/s | 1.86 dB |
| SAS 3.0 Gb/s | 0 dB |
| SAS-SSC 3.0 Gb/s | 1.57 dB |
| SATA 3.0 Gb/s | 1.57 dB |
| SAS 6.0 Gb/s | 0 dB |
| SAS-SSC 6.0 Gb/s | 1.57 dB |
| SATA 6.0 Gb/s | 1.86 dB |
| QPI | 1.75 dB |
| USB 3.0 | 2.08 dB |
Before this command can take effect, you must disable shared acquisition parameters with the :CHANnel:RTSCope:TRACkcommand.
Requires FlexDCA revision A.06.70 and above.