Deskew, Transition Times | Agilent Technologies 660MHz instruction

			Specifications
			Agilent 81130A Specifications
	Deskew
	Compensation for different cable delays.

	Deskew	Agilent 81130A with	Agilent 81130A with
	Deskew	Agilent 81131A	Agilent 81132A
		Agilent 81131A	Agilent 81132A

	Range:		± 25 ns
	Resolution:	4 digits, 2 ps best case

For frequencies >170 kHz only.

Transition Times

Measured between 10% and 90% of amplitude, except for ECL levels (20% and 80% of amplitude).

Agilent 81130A with	Agilent 81130A with
Transition Times	Agilent 81132A
Agilent 81131A	Agilent 81132A

Range:

Minimum transition:

At ECL levels:

800 ps or 1600 ps (selectable)

≤600 ps for Vpp ≤ 1 V

≤900 ps for Vpp > 1 V

<450 ps

fixed

500 ps typ.

< 350 ps (200 ps typ.)

Digital Channel Add

In this mode, channel 1 and channel 2 are added and fed to channel 1 output. Channel 2 is still available.

101

Image 101

Agilent Technologies 660MHz manual Deskew, Transition Times, Digital Channel Add, Compensation for different cable delays

Contents

Reference Guide Front Panel Display and Softkeys Reference Guide Agilent 81130A 400/660 MHz Pulse/Data Generator Copyright Warranty Services and Support Limitation of WarrantyExclusive Remedies Certification Before Applying Power Safety SummaryGeneral Environmental Conditions Fuses Ground the InstrumentDo Not Operate in an Explosive Atmosphere Do Not Remove the Instrument Cover Protective earth ground terminal Manuals Safety Symbols About this Book Conventions Used in this Book Contents 102 Agilent 81130A Specifications103 105 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 Event Register Condition RegisterTransition Filters 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 Started ContinuousGated Pulses 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 Digpattprbs DigpattlooplengDigpatt Data –1 Prbs on OutputSegment Segment 2 to Segment 4 set to all bits set to zero See DIGPATTSEGM1DATA2 #1501011 Be overwritten no undo 32, 0, 0, 0 segment 1 = 32, segments 2, 3, and 4 =Restrictions DIGPATTSEGM1234TYPE12 Update the hardware with the new pattern data by sending a DIGitalSTIMulusPATTernUPDatePattern generating hardware following a DIGSIGN12FORM Disp Filetype is always blank. a directory name has filesize = QueryEvent Directoryname Filename,A,copyname,A Only select a directory name within the current directoryDirectory of the current directory Mmemdel Mmemstorstat Mmeminit OFF OUTP12COMP Output signals are the same at the device-under-test CORR12EDELay–25.0 ns to +25.0 ns CURR12 CURR12OFFSet Execute the SOURceHOLD CURRent command to enable∝A 50 Ω into 50 Ω Amplitude Low-level Execute Sourcehold CURRent command to enable+10 mA 50 Ω into 50 Ω 8V Outputs 50 Ω into short max mA typical –10 mA 50 Ω into 50 Ω0V Outputs 50 Ω into short max mA typical High-level CURR12LIMSTAT –10.0 mA Hz with engineering prefixes, or MHZ for Megahertz Output limits cannot program the output-levels beyond00 MHz Agilent 81131A 1 kHz to 400 MHz Use this command to enable either of the SOURceVOLTage or Connector as the frequency source Trigsour EXTFreqauto Once Programming the pulse phase also executes SOURcePULSeHOLD To 360 constrained by delay and period limitsPHAS12 PULSDCYC12 To 3.00 µs Specified limits 0.1 – 99.9%, depends on Width & Period PHAS2 180DEG Pulse-delay Pulsper PULSDEL12UNITPULSHOLD12 Available resolution depend on the selected source Programmed by this command. Note that the specified limitsConnector as the frequency source Trigsour EXT2 Agilent 81131A 2.5 ns to 1 ms Agilent 81132A 1.5 ns to 1 ms PULSTRAN12 PULSTRAN12UNIT Within the defined pulse-width Agilent 81131A 0.8 ns or 1.6 nsTrailing-edge = Leading-edge fixed coupled PULSTRIG1VOLT PULSTRIG1MODEPULSTRIG1POS To set width as dutycycle use SOURcePULSeDCYCle12 Roscextfreq MHz, 2 MHz, 5 MHz or 10 MHz reference signal using Agilent 81131A 0.10 Vpp to 3.80 Vpp VOLT12Agilent 81132A 0.10 Vpp to 2.50 Vpp Execute VOLT12HIGH Execute the SOURceHOLD VOLTage command to enable VOLT12LOW –500 mV +500 mVHardware, this is a software limit Limits are always enabled/disabled together Scpi Instrument Command List STATusPRESet Long STATusQUEStionableEVENt? STATusQUEStionableENABleSTATusQUEStionableCONDition? STATusQUEStionableNTRansition Replaced with -350meaning Queue overflow Message are put into the instruments output bufferOutput example Systkey 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? Trigcoun Separator between the messagesActive Changes on the channels BurstSet by TRIGgerCOUNt. Changes of the number of pulses on TRIGCOUNPULS1? ⇒ TRIGCOUN? ⇒ Triglevterm Output 1 or Output Command Trigsour Scpi Instrument Command List 81132A TemperatureUsed by the instrument Warranted Performance Declaration of Conformity Specifications Safety Agilent 81130A SpecificationsPower requirements Maximum Dimensions H x W x D Acoustic Noise Emission WeightRecalibration period Period & Frequency 100 DelayWidth Deskew Compensation for different cable delaysTransition Times Digital Channel Add Main Output Level Specifications External Clock/PLL Reference Input External Input 104 Specifications of EXT INPUT/CLK-IN REF Input Generate continuous pulses, bursts, or patterns Externally StartedExternally Gated Output Modes Specification of Trigger Output 107 Burst ModePatterns and Sequences Overprogramming Human Interface Non-Volatile Memory Help KeyMemory Card Function Code 110 Programming TimesAll checks and display off Pulse Parameter Definitions Time Reference Point Trigger DelayPulse Period Pulse Width Interchannel Delay Skew Pulse Delay 114 Transition TimeLinearity Stability JitterPulse Levels 115 116 Preshoot, Overshoot, RingingSettling Time Repeatability 118 119 Index 120 Scpi 121 122 Front Panel Controls