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Operator’s Manual Simple AFG Application

Berkeley Nucleonics Corporation

[email protected] | www.berkeleynucleonics.com

2955 Kerner Blvd, San Rafael, CA 94901 | 800-234-7858

Rev 1.1

The modulation types are:

•

Amplitude Modulation (AM)

•

Frequency Modulation (FM)

•

Phase Modulation (PM)

•

Frequency Shift Keying (FSK)

•

Phase Shift Keying (PSK)

•

Pulse Width Modulation (PWM)

The PWM modulation is the only modulation supported by the Pulse waveform.
The types of modulation are explained in detail in the following sections of this chapter.

Touching the “Shape” button the modulation type menu opens. The possibility to choose the shape is
only available for AM, FM, PM and PWM modulations.

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Summary of Contents for 685 2C-PAT

Page 1: ...Model 685 Performance AWG User Manual Active Technology MODEL 685 Series Rev 1 0 June 2021...

Page 2: ...faces Clean and Dry 7 Provide Proper Ventilation 7 SAFETY REQUIREMENTS 8 Safety Symbols 8 ENVIRONMENTAL CONSIDERATIONS 10 PRODUCT END OF LIFE HANDLING 10 EQUIPMENT RECYCLING 10 PREFACE 11 PACKAGECONTE...

Page 3: ...utput Connector 31 Digital Output connector 31 External Clock Input Connector 31 Sync Clock Output Connector 31 Sync In Sync Out Connectors 31 INTRODUCTION 32 SIMPLE AFG SOFTWARE 32 SIMPLE AFG TOUCH U...

Page 4: ...ODULATION 55 Marker Out behaviour in Modulation Run Mode 57 Modulation General Parameter 58 Modulation Types and associated parameters 58 SWEEP 59 Sweep Mode 60 Parameters 60 Sweep Trigger Mode 61 Mar...

Page 5: ...5 Berkeley Nucleonics Corporation info berkeleynucleonics com www berkeleynucleonics com 2955 Kerner Blvd San Rafael CA 94901 800 234 7858 Rev 1 1 SAFETY COMPLIANCE 86 ENVIRONMENTAL COMPLIANCE 87...

Page 6: ...document may be reproduced copied transmitted transcribed stored in a retrieval system or translated in any form or by any means such as electronic mechanical magnetic optical chemical manual or other...

Page 7: ...ound Before making connections to the input or output terminals of the product ensure that the product is properly grounded Observe All Terminal Ratings To avoid fire or shock hazard observe all ratin...

Page 8: ...ymbol is used where caution is required Refer to the accompanying information or documents in order to protect against personal injury or damage to the instrument This symbol warns of a potential risk...

Page 9: ...its conditions are fully understood and met WARNING The WARNING sign indicates a potential hazard It calls attention to a procedure practice or condition which if not followed could possibly cause bod...

Page 10: ...atural resources The equipment may contain substances that could be harmful to the environment or human health if improperly handled at the product s end of life In order to avoid release of such subs...

Page 11: ...ignal can reach up to 3 Volts pk pk into 100 Ohm with a common mode voltage of 2 Volts into 50 Ohm The Model 685 can generate signals up to 2 GHz The software architecture provides the possibility to...

Page 12: ...with Simple AFG application MODEL 685 2C 4G O 4G Memory license for MODEL 685 2C MODEL 685 4C 4G O 4G Memory license for MODEL 685 4C MODEL 685 8C 4G O 4G Memory license for MODEL 685 8C AT DTTL8 A LV...

Page 13: ...ize with the possibility of rack mounting Mechanical Characteristics Model 685 2C Net Weight 10 5 kg Net Weight with Package 11 kg Overall Dimensions Height 135 mm Width 445 mm Depth 320 mm Model 685...

Page 14: ...s out of service Environmental requirements Before using this product ensure that its operating environment is maintained within these parameters Temperature Operating 5 C to 40 C 41 F to 104 F Non op...

Page 15: ...surface perform the following steps Remove loose dust on the outside the instrument with a lint free cloth Use care to avoid scratching the front panel display Use a soft cloth dampened with water to...

Page 16: ...the Instrument On and Off and Launch AFG Application Power On Insert the AC power cord into the power receptacle on the rear panel Use the front panel power button to power on the instrument Wait unt...

Page 17: ...the Latest Version Releases The latest release of the software may not be installed on your instrument The latest version could be found on Berkeley Nucleonics Corporation website www berkeleynucleon...

Page 18: ...ive and Recovery Procedure In case of software failure or corrupted applications it s possible reinstall the full factory image of the software using the 32 GB Usb Pen Drive included in the package No...

Page 19: ...ber to leave only the one on which you want to launch the procedure the other must be removed Note A keyboard is required for the recovery procedure from USB Pen Drive Recovery Procedure 1 Insert the...

Page 20: ...fael CA 94901 800 234 7858 Rev 1 1 5 Enter the code 1234 to confirm the execution of the recovery procedure 6 Once the procedure is complete press enter to shut down the instrument 7 Remove the Recove...

Page 21: ...cs com www berkeleynucleonics com 2955 Kerner Blvd San Rafael CA 94901 800 234 7858 Rev 1 1 Instrument Overview Front Panel Model 685 2C 7 Capacitive Touch Screen Soft Keyboard and Rotary Knob Numeric...

Page 22: ...nucleonics com www berkeleynucleonics com 2955 Kerner Blvd San Rafael CA 94901 800 234 7858 Rev 1 1 Front Panel Model 685 4C 7 Capacitive Touch Screen Soft Keyboard and Rotary Knob Single ended analog...

Page 23: ...l 685 2C 4C 8C differ from that shown in the picture above because they have twice the SMA analog output connectors because each output channel has two complementary outputs and The Touch screen funct...

Page 24: ...ker Out Specification Value Connector 1 SMA for each pair of channels on the Front Panel Output impedance 50 Output level into 50 0 5 V to 1 65 V Model Marker Out Connectors Model 685 2C 1 SMA on the...

Page 25: ...25 Operator s Manual Simple AFG Application Berkeley Nucleonics Corporation info berkeleynucleonics com www berkeleynucleonics com 2955 Kerner Blvd San Rafael CA 94901 800 234 7858 Rev 1 1...

Page 26: ...c keypad is available on the front panel and it can be used instead of the virtual numeric pad A useful central knob is available for fine tuning and adjustments during the on the fly set up operation...

Page 27: ...of the waveform FREQ PERIOD Use this button to set the period or the frequency of the waveform AWG AFG Use this button to switch between AFG mode and AWG operating mode OFFSET V LOW Use this button to...

Page 28: ...it will be GHz if you press T p nothing will happen because that range is not available for the selected parameter If both the two unit of measure of a Unit Measure Range button are available for the...

Page 29: ...gives the description of the corresponding connectors 2 Digital Output Connector Pod A Pod B 4 USB 3 0 ports 2 Gigabit LAN port 3 Audio IN OUT 1 HDMI 1 4 port 1 VGA port 1 DVI D port 1 Display 1 2 po...

Page 30: ...685 8C 4 Digital Output Connectors Pod A Pod B Pod C Pod D 1 HDMI 1 4 port 1 VGA port 1 DVI D port 1 Display 1 2 port 1 PS 2 Mouse Keyboard ports 1 COM port 4 USB 3 0 ports 2 Gigabit LAN port 3 Audio...

Page 31: ...ector outputs the internal 10MHz 100MHz Optional reference clock used to synthesize the DAC sampling clock If the clock source is internal it produces a signal at 10 MHz 100 MHz Optional if the source...

Page 32: ...ftware The MODEL 685 series instrument includes a 7 capacitive touch screen and an easy touch user interface based on a Microsoft Windows 10 platform You can control instrument operations using one or...

Page 33: ...condary tab The Carrier tab allows to choose the Run Mode and the Waveform type and to set its parameters The Secondary tab is used to define the Modulation Sweep or Burst parameters depending on the...

Page 34: ...34 7858 Rev 1 1 If you use the Swipe left or right gesture on the Graph Area you can switch between the Output Channel 1 and Output Channel 2 page If you use the Swipe left or right gesture on the Wav...

Page 35: ...relative chapter In the Secondary tab it is possible to define the parameters that describe the Modulation Sweep and Burst This tab changes title name and functionality depending on the selected Run...

Page 36: ...nt Unit After typing the numeric value these buttons can apply a different multiplier of the measurement unit When a measurement unit is pressed the value is applied on the fly 5 Coarse Fine the cours...

Page 37: ...s the value between the allowed minimum and the maximum The increment decrement value entered by the rotary knob or by the scrollbar are applied to the instrument on the fly Graph Area The graph area...

Page 38: ...a detailed description of this toolbar is provided Command Bar Buttons Description Running Stopped Button Use this button to set the instrument in Running state or Ready to receive a Trigger or in the...

Page 39: ...on please refer to the relative section Import Button This button opens the page where you can import a waveform from a file and use it as Carrier Waveform Modulation Law or Sweep Profile For more inf...

Page 40: ...For more information please refer to the relative section Save Setting Button This button stores the instrument settings to a file called Memory For more information please refer to the relative secti...

Page 41: ...IN 1 and TRIGGER IN 2 The External Modulation Input is an input signal available in a SMA connector located in the rear instrument panel Ext Mod In The Trigger In and the External Modulation Input sig...

Page 42: ...pening the menu beside the amplitude label Vpp Peak to Peak Voltage it is the difference between the highest and lowest level of the waveform Vrms Root Mean Square Voltage it is the rms value of the w...

Page 43: ...m 2955 Kerner Blvd San Rafael CA 94901 800 234 7858 Rev 1 1 High Level V It defines the maximum level of the waveform expressed in Volts Low Level V It defines the minimum level of the waveform expres...

Page 44: ...d Noise Symmetry This parameter is defined only for the Ramp function It represents the percentage of the period where the ramp function is rising Width s Duty Cycle It defines the duration of the Hig...

Page 45: ...perator s Manual Simple AFG Application Berkeley Nucleonics Corporation info berkeleynucleonics com www berkeleynucleonics com 2955 Kerner Blvd San Rafael CA 94901 800 234 7858 Rev 1 1 Auxiliary Chann...

Page 46: ...air of channels on the Front Panel Output impedance 50 Output level into 50 0 5 V to 1 65 V Marker out blue top synchronous with the analog signal red bottom Trigger In The Trigger In 1 SMA connector...

Page 47: ...ls Input Impedance 10 kOhm Input Voltage Range 1 V for all modulations except FSK PSK modulation FSK PSK 0V 3 3V with 1 65V fixed threshold Reference Clock Input Connector The MODEL 685 series instrum...

Page 48: ...Rear Panel Input impedance 50 Ohm AC coupled Input Frequency range 192 5 MHz 385 MHz 770 MHz or 1540 MHz selectable Sync Clock Output Connector This connector outputs a divided clock generated from sa...

Page 49: ...s also available the Arbitrary waveform that allows to load a waveform from a file or from remote Touching the Waveform button on the Carrier a dropdown menu opens where it is possible to select the w...

Page 50: ...fset Frequency Phase Square Amplitude Offset Frequency Phase Ramp Amplitude Offset Frequency Phase Symmetry Pulse Amplitude Offset Frequency Phase Duty Cycle Leading Edge Trailing Edge Double Pulse Co...

Page 51: ...PWM Sweep Burst DC Level Offset Gaussian Amplitude Offset Frequency Phase Lorentz Amplitude Offset Frequency Phase Exponential Rise Amplitude Offset Frequency Phase Exponential Decrease Amplitude Offs...

Page 52: ...bitrary waveform is selected the amplitude and offset of the original waveform are lost because the waveform in normalized Anyway the amplitude and offset of the normalized waveform can be modified as...

Page 53: ...Run Mode If Modulation Sweep or Burst is selected the software moves directly on the secondary tab that takes the name of the selected Run Mode Note after enabling a channel and pressing the Running b...

Page 54: ...Run Mode In Continuous mode the Marker Out generates a pulse with a duty cycle of about 50 Automatic width mode or a User predefined width Manual width mode at the beginning of each period The Marker...

Page 55: ...Carrier frequency 2 GHz Marker out blue top synchronous with the analog signal red bottom in Automatic width mode Marker out blue top synchronous with the analog signal red bottom in Manual width mode...

Page 56: ...n AM Frequency Modulation FM Phase Modulation PM Frequency Shift Keying FSK Phase Shift Keying PSK Pulse Width Modulation PWM The PWM modulation is the only modulation supported by the Pulse waveform...

Page 57: ...For the file specification please refer to the Import from File paragraph By default the Arbitrary waveform is a cosine function Marker Out behaviour in Modulation Run Mode If the modulating source is...

Page 58: ...all functions except for the Pulse Double Pulse DC level and Noise The parameter Depth controls the modulation depth between 0 and 120 Frequency Modulation FM the frequency of the carrier waveform is...

Page 59: ...he value of Hop Phase deg It is available for all functions except for the Pulse Double Pulse DC level and Noise The hop phase is between 0 and 360 deg Pulse Width Modulation PWM this modulation is av...

Page 60: ...function Upstair the frequency varies step by step The number of steps is selectable through the Step Number parameter User Defined allows to load a sweep profile from a file For the file specificatio...

Page 61: ...nt starts when the Run Stop button is pressed and repeats the sweep continuously The maximum marker s skew is 100s Trigger When the Run Stop button is pressed the instrument waits for a Trigger signal...

Page 62: ...fael CA 94901 800 234 7858 Rev 1 1 Marker out blue top synchronous with the sweep red bottom in Manual width mode only for Repeat mode Burst In Burst mode a waveform is repeated a predefined number of...

Page 63: ...ger returns to false the instrument terminates the current burst sequence then it returns waiting for the next trigger In Gated mode if the source of trigger is external from connector Trigger Inputs...

Page 64: ...55 Kerner Blvd San Rafael CA 94901 800 234 7858 Rev 1 1 In this case the user can set which voltage level will be generated between one burst and another the carrier s first or last sample Exponential...

Page 65: ...l So the marker s width parameter is meaningless while the maximum marker s skew is 2 25us Es 1 in the following picture the gated mode operation is shown From top to bottom there are C3 blue trace is...

Page 66: ...textbox it is possible to type a new name then pressing the Save button the memory will be saved In this page it is possible to choose to destination folder to save the current settings The pencil ac...

Page 67: ...tton in the More menu a page will open showing the list of all the saved memories Selecting a memory entry the current instrument settings will be immediately updated with those of the memory entry Th...

Page 68: ...rver If the text of the command is displayed in red it means that the command is wrong and it hasn t been accepted by the server At the top of the page the Host Name and the IP Address of the instrume...

Page 69: ...n using the GPIB General Purpose Interface Bus interface Connect one side of a GPIB cable to the GPIB port of the Model 685 on the rear panel and your GPIB controller on the other side In Remote Contr...

Page 70: ...municate using IEEE488 style messages This lets you run the SCPI commands using USB hardware Connect an appropriate USB cable A MALE B MALE between the USBTMC port of the Model 685 on the rear panel a...

Page 71: ...ment and one for the Device You can swipe left or right to switch among the tabs Touching a channel button or pressing the CHANNEL SEL button on keypad the settings page will switch between the channe...

Page 72: ...e amplitude please pay attention that Signal Noise does not exceed the amplitude of 5Vpp single ended Models or 1 5Vpp differential Models Internal Noise Use this control to enable or disable the nois...

Page 73: ...gs The Device Settings page contains the general setting of the instrument such as the clock source and the Marker Out setting Touching the Settings button in the menu bar or the SETTINGS button on th...

Page 74: ...is selected the DAC sampling clock is synthesized using the clock provided externally to the Ref Clock In SMA connector In this case the Ref Clk In Freq control will appear and the user must specify t...

Page 75: ...is provided to the instrument by pressing the Trigger button on the keyboard or the Trigger button on the menu toolbar or by issuing a trigger by Remote Command Timer the Trigger is internally generat...

Page 76: ...is External Impedance It selects the Trigger In 1 connector impedance 1 kOhm or terminated into 50 Ohm Ext Trig Mode When Slow Sync is selected the Trigger input signal is supposed to be asynchronous...

Page 77: ...Settings 8 Channels Model Note for 4 and 8 channels Models press the Marker 1 Marker 4 tab to visualize the corresponding marker s settings Marker Out Setting Description High Level V Specifies the Ma...

Page 78: ...ter has effect only for not Triggered modes Marker Width s Specifies the width of the marker out when Manual width mode is selected The range is from 1 3ns up to Carrier period 1 3ns Skew s Specifies...

Page 79: ...g Sweep of the channel For example if the Cosine txt is imported and assigned as Carrier Wave for the channel 1 than the imported waveform can be selected by choosing Arbitrary as carrier waveform typ...

Page 80: ...e right side of the Upload to label Waveform List This section contains a list of all the predefined and imported waveforms The Trash Bin deletes the selected waveforms It is not possible to delete a...

Page 81: ...on Berkeley Nucleonics Corporation info berkeleynucleonics com www berkeleynucleonics com 2955 Kerner Blvd San Rafael CA 94901 800 234 7858 Rev 1 1 4 Set the Modulation parameters as preferred 5 Press...

Page 82: ...ut amplitude To address this problem the channel coupling feature is provided Press this button in the More menu to open the Channel Coupling page Channel 1 parameters are used as the reference parame...

Page 83: ...available for coupling When a change of a parameter of Channel 1 causes an out of range error on the coupled channel the application will limit the parameters value to the latest valid ones When a ch...

Page 84: ...2 Carrier page will be disabled On the contrary the Channel 1 frequency parameter will be enabled and if the frequency is changed to 5 MHz then the channel 2 frequency will automatically change to 12...

Page 85: ...85 Operator s Manual Simple AFG Application Berkeley Nucleonics Corporation info berkeleynucleonics com www berkeleynucleonics com 2955 Kerner Blvd San Rafael CA 94901 800 234 7858 Rev 1 1...

Page 86: ...n I O signal data and control lines 4 EN 61000 4 5 2006 Power Line Surge 1 kV AC Mains L N L PE N PE 4 EN 61000 4 6 2009 RF Conducted Electromagnetic Field 3 Vrms 0 15 MHz 80 MHz EN 61000 4 11 2004 Ma...

Page 87: ...ronment where normally only dry non conductive pollution occurs Temporary conductivity caused by condensation should be expected Environmental Compliance END OF LIFE HANDLING The instrument is marked...

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