:CRECovery:JSANalysis:PLLoop:ORDer

Command Syntax

:CRECovery{1:8}:JSANalysis:PLLoop:ORDer  {FIRSt | SECond | THIRd}

Where the {1:8} specifier identifies a slot number. The slot number is associated with the N1060A, N1076A/B, N1077A, N1078A, or 86108B module with Option JSA. When an 86108B module is used, the slot number is always 1.

Query Syntax

:CRECovery{1:8}:JSANalysis:PLLoop:ORDer?

Query Response

{FIRS | SEC | THIR}

Description

Selects a first, second, or third order low-pass filter for the emulated clock recovery phase lock loop. The following arguments are used:

FIRSt

Selects a first-order loop. Use the :CRECovery1:JSANalysis:PLLoop:MODE command to define either the Jitter Transfer Function (JTF) or Observed Jitter Transfer Function (OJTF) type of PLL. The transfer functions are defined using the :CRECovery1:JSANalysis:PLLoop:JTF:BWIDth and :CRECovery1:JSANalysis:PLLoop:OJTF:BWIDth commands.

SECond

Selects a second-order loop. This is the default selection. Use the :CRECovery1:JSANalysis:PLLoop:MODE command to define either the Jitter Transfer Function (JTF) or Observed Jitter Transfer Function (OJTF) type of PLL. The JTF is defined using the :CRECovery1:JSANalysis:PLLoop:JTF:BWIDth and :CRECovery1:JSANalysis:PLLoop:JTF:PEAKing commands. The OJTF is defined using the :CRECovery1:JSANalysis:PLLoop:OJTF:BWIDth and :CRECovery1:JSANalysis:PLLoop:OJTF:DFACtor commands.

THIRd

Selects a third-order loop. Use the :CRECovery1:JSANalysis:PLLoop:FGAIn command to enter the frequency for the loop's gain. Use the :CRECovery1:JSANalysis:PLLoop:FPOLe command to enter the frequency for the loop's pole. Use the :CRECovery1:JSANalysis:PLLoop:FZERo command to enter the frequency for the loop's zero.

Command Compatibility

• N1060A Option JSA
• 86108A/B Option JSA
• N107X-series Option JSA

Example Command Sequence

:CRECovery{1:8}:JSANalysis:PLLoop:ORDer SECond