Jitter, Stability, Pulse Levels, 115 | Agilent Technologies 660MHz

Specifications

Pulse Parameter Definitions

Jitter

Short-term instability of one edge relative to a reference edge. Usually specified as rms value, which is one standard deviation or sigma. If distribution is assumed Gaussian, six sigma represents 99.74% of the peak-peak jitter.

The reference edge for period jitter is the previous leading edge. That for delay jitter is the leading edge of the trigger output. Width jitter is the stability of the trailing edge with regard to the leading edge.

Stability

Long-term average instability over a specific time, for example, hour, year. Jitter is excluded.

Pulse Levels

Pulse output is specified as pulse top and pulse base (usually referred to as high level and low level), or as peak to peak amplitude and median offset. A window specification shows the limits within which the pulse can be positioned.

High Level

Amplitude					Median				Max
Amplitude									High
									High
									Level
							Window
							Window
Low Level					Offset
					Offset

									Min
									Min
									Low
									Level
	Zero Volts

115

Image 115

Agilent Technologies 660MHz, Agilent 81130A 400 manual Jitter, Stability, Pulse Levels, 115

Contents

Reference Guide Front Panel Display and Softkeys Reference Guide Agilent 81130A 400/660 MHz Pulse/Data Generator Copyright Warranty Certification Limitation of WarrantyServices and Support Exclusive Remedies Environmental Conditions Safety SummaryBefore Applying Power General Do Not Remove the Instrument Cover Ground the InstrumentFuses Do Not Operate in an Explosive Atmosphere Protective earth ground terminal Manuals Safety Symbols About this Book Conventions Used in this Book Contents 105 Agilent 81130A Specifications102 103 General Programming Aspects General Programming Aspects GP-IB Interface Bus Agilent 81130A Remote Control DISPlay OFF Programming Recommendations OPC? Common Command Summary Questionable Status Status Model Transition Filters Condition RegisterEvent Register NTR PTR Enable Register Standard Event Status Group Status Byte OPERation Status Group QUEStionable Status Group Programming Reference Programming Reference Agilent 81130A Scpi Command Summary DIGital Copy High Hold SOURce ROSCillator STATus OPERation EVENt? KEY Parameter RST, Default Values Default Values, Standard Settings Load TTL TRIGger COUNt PULSes LEVel TERMination SOURce Programming the Instrument Trigger Modes Pulses ContinuousStarted Gated Pattern Burst Started Manually Starting and Gating Scpi Instrument Command List Armmode Armlevterm Armsour Armsens Output 2 can be used in parallel Instrument with two Output channels installed To setup an infinite loop over segment 2 to segment Use this command to set up a counted loop across one or more See previous example Use this command to set up the destination segment Digpatt DigpattlooplengDigpattprbs Segment 2 to Segment 4 set to all bits set to zero –1 Prbs on OutputData Segment See DIGPATTSEGM1DATA2 #1501011 Restrictions 32, 0, 0, 0 segment 1 = 32, segments 2, 3, and 4 =Be overwritten no undo DIGPATTSEGM1234TYPE12 DIGSIGN12FORM DIGitalSTIMulusPATTernUPDateUpdate the hardware with the new pattern data by sending a Pattern generating hardware following a Disp Directoryname QueryFiletype is always blank. a directory name has filesize = Event Mmemdel Only select a directory name within the current directoryFilename,A,copyname,A Directory of the current directory Mmemstorstat Mmeminit OFF OUTP12COMP CURR12 CORR12EDELayOutput signals are the same at the device-under-test –25.0 ns to +25.0 ns Amplitude Execute the SOURceHOLD CURRent command to enableCURR12OFFSet ∝A 50 Ω into 50 Ω +10 mA 50 Ω into 50 Ω Execute Sourcehold CURRent command to enableLow-level High-level –10 mA 50 Ω into 50 Ω8V Outputs 50 Ω into short max mA typical 0V Outputs 50 Ω into short max mA typical CURR12LIMSTAT –10.0 mA Agilent 81131A 1 kHz to 400 MHz Output limits cannot program the output-levels beyondHz with engineering prefixes, or MHZ for Megahertz 00 MHz Once Connector as the frequency source Trigsour EXTUse this command to enable either of the SOURceVOLTage or Freqauto PULSDCYC12 To 360 constrained by delay and period limitsProgramming the pulse phase also executes SOURcePULSeHOLD PHAS12 To 3.00 µs Specified limits 0.1 – 99.9%, depends on Width & Period PHAS2 180DEG Pulse-delay PULSHOLD12 PULSDEL12UNITPulsper Agilent 81131A 2.5 ns to 1 ms Agilent 81132A 1.5 ns to 1 ms Programmed by this command. Note that the specified limitsAvailable resolution depend on the selected source Connector as the frequency source Trigsour EXT2 PULSTRAN12 PULSTRAN12UNIT Trailing-edge = Leading-edge fixed coupled Agilent 81131A 0.8 ns or 1.6 nsWithin the defined pulse-width PULSTRIG1POS PULSTRIG1MODEPULSTRIG1VOLT To set width as dutycycle use SOURcePULSeDCYCle12 Roscextfreq MHz, 2 MHz, 5 MHz or 10 MHz reference signal using Execute VOLT12Agilent 81131A 0.10 Vpp to 3.80 Vpp Agilent 81132A 0.10 Vpp to 2.50 Vpp VOLT12HIGH Execute the SOURceHOLD VOLTage command to enable VOLT12LOW Hardware, this is a software limit +500 mV–500 mV Limits are always enabled/disabled together Scpi Instrument Command List STATusPRESet Long STATusQUEStionableNTRansition STATusQUEStionableENABleSTATusQUEStionableEVENt? STATusQUEStionableCONDition? Systkey Message are put into the instruments output bufferReplaced with -350meaning Queue overflow Output example Key Description Scpi Instrument Command List Specified limits Systkey 19 sets the instrument to Local mode Emptied by *RST and returns the value -1 when empty Systsec Systpres SYSTVERS? Active Separator between the messagesTrigcoun Set by TRIGgerCOUNt. Changes of the number of pulses on BurstChanges on the channels TRIGCOUNPULS1? ⇒ TRIGCOUN? ⇒ Triglevterm Output 1 or Output Command Trigsour Scpi Instrument Command List Warranted Performance Temperature81132A Used by the instrument Declaration of Conformity Specifications Maximum Dimensions H x W x D Agilent 81130A SpecificationsSafety Power requirements Recalibration period WeightAcoustic Noise Emission Period & Frequency Width Delay100 Digital Channel Add Compensation for different cable delaysDeskew Transition Times Main Output Level Specifications External Clock/PLL Reference Input External Input 104 Specifications of EXT INPUT/CLK-IN REF Input Externally Gated Externally StartedGenerate continuous pulses, bursts, or patterns Output Modes Specification of Trigger Output Patterns and Sequences Burst Mode107 Overprogramming Human Interface Function Code Help KeyNon-Volatile Memory Memory Card All checks and display off Programming Times110 Pulse Parameter Definitions Pulse Width Trigger DelayTime Reference Point Pulse Period Interchannel Delay Skew Pulse Delay Linearity Transition Time114 115 JitterStability Pulse Levels Settling Time Preshoot, Overshoot, Ringing116 Repeatability 118 119 Index 120 Scpi 121 122 Front Panel Controls