Operator's Manual MS-250 Mixed Signal Oscilloscope Option
MS-250 Mixed Signal Oscilloscope Option Operator's Manual November 2014
MS-250 Mixed Signal Oscilloscope Option Operator's Manual © 2014 Teledyne LeCroy, Inc. All rights reserved. Unauthorized duplication of Teledyne LeCroy documentation materials other than for internal sales and distribution purposes is strictly prohibited. However, clients are encouraged to distribute and duplicate Teledyne LeCroy documentation for their own internal educational purposes. MS-250 and Teledyne LeCroy are trademarks of Teledyne LeCroy, Inc.
Operator's Manual Contents Welcome ii Safety Operating Environment Specifications 1 2 2 Introduction Technical Overview Standard Hardware Accessories 3 3 5 7 Connecting the Mixed Signal Option Connecting to the Oscilloscope Digital Connections 9 9 12 Digital Setup Digital Logic Setup Digital Group Setup Displaying Digital Traces Renaming Digital Lines 13 13 15 16 17 Digital Triggering Setting Up Digital Triggers Pattern Trigger Edge Trigger Width Trigger Glitch Trigger Interval Trigger Dropout Tr
MS-250 Mixed Signal Oscilloscope Option Welcome Thank you for purchasing a Teledyne LeCroy MS-250 Mixed Signal Oscilloscope Option. The MS-250 is a powerful solution for the challenge of measuring multiple, mixed signals in a single oscilloscope. An enhancement to the Teledyne LeCroy oscilloscopes, the MS-250 extends their testing range by adding 18 digital channels for display or triggering.
Operator's Manual Safety Observe these instructions to keep the product operating in a correct and safe condition. You are required to follow generally accepted safety procedures in addition to the precautions specified in this section. The overall safety of any system incorporating this product is the responsibility of the assembler of the system. Symbols These symbols appear on the product or in its documentation to alert you to important safety considerations.
MS-250 Mixed Signal Oscilloscope Option Operating Environment Temperature: Humidity: Altitude: 5 to 40 °C Maximum relative humidity 80% (non-condensing) for temperatures up to 31° C, decreasing linearly to 50% relative humidity at 40° C Up to 2,000 m Specifications Detailed specifications are listed on the product datasheet at teledynelecroy.com. NOTE: Specifications are subject to change without notice.
Operator's Manual Introduction The MS-250 Mixed Signal Oscilloscope Option is a complete system that adds digital acquisition and triggering capabilities to a Teledyne LeCroy oscilloscope. Once properly connected to the oscilloscope and the device under test, you will be able to use the oscilloscope user interface for the following: l l l l Digital Logic Control: Set the logic threshold and hysteresis for each lead bank, choosing from standard logic families or entering a custom setting.
MS-250 Mixed Signal Oscilloscope Option The minimum high voltage level may be defined by the user (using the hysteresis controls) up to 1.4 V above the threshold. The maximum low voltage level may be defined to 1.4 V below the threshold. The minimum signal swing is 100 mV. The indeterminate range of 50 mV around the threshold voltage level is the level below which the MS-250 will not operate. However, the MS-250 can support a signal as low as 100 mV only if the input signal’s quality is adequate.
Operator's Manual Standard Hardware The MS-250 is delivered with the following hardware: Part Description QTY Mixed Signal Accessory Provides 18-channel digital acquisition and triggering. 1 16" Digital Leadset Interfaces the MS-250 to the device under test. The lead set terminates in a 25 mil pin socket. Microgripper probes of various sizes are available as accessories from Teledyne LeCroy, and may be connected to the lead set. The lead set is divided into two banks.
MS-250 Mixed Signal Oscilloscope Option Part Description QTY 3" Flexible Ground Lead Lead for grounding individual digital inputs 5 Ground Extender Connect to ground port of any digital input and make a simple signal and ground connection to a 0.1” square pin header.
Operator's Manual Accessories You may purchase these optional accessories separately to enhance the performance of an MS-250: Accessory Part Number Description Digital Leadset MSO-DLS-18 Additional 16" leadset for inputting lines D0-D17. This can be useful if you have more than one device under test and don't wish to disconnect/reconnect leads. Large Gripper Probe Set PK400-1 Large gripper probe set for 0.10 inch (2.54 mm) pin pitch. Includes 10 probes with color-coded leads.
MS-250 Mixed Signal Oscilloscope Option Accessory Part Number Description Small Gripper Probe Set PK400-3 Small gripper probe set for 0.008 inch (0.2 mm) pin pitch. Includes 10 probes with color-coded leads. Mictor Cable MSOMICTOR Mictor Connection cable, 16" (40.64 cm), 36 channel connector Interconnect Cable MSO-3M Interconnect cable, 16" (40.64 cm), mates with 3M connectors 2520-6002 and 2520-5002.
Operator's Manual Connecting the Mixed Signal Option Connecting to the Oscilloscope To connect the Mixed Signal accessory to your oscilloscope: 1. Connect the Bus Cable to the Bus connector on the oscilloscope. Be sure the head is turned so that the positioning wedge fits into the groove at the top of the connector. Fasten the thumb screws. 2. Connect the USB 2.0 cable (attached to the Bus Cable) to any of the USB ports on the oscilloscope.
MS-250 Mixed Signal Oscilloscope Option 3. Connect the other end of the Bus Cable to the MS-250. Again, be sure to align the wedge and the groove. Fasten the thumb screws. 4. Connect the other end of the USB 2.0 Cable to the MS-250.
Operator's Manual 5. Connect the Digital Leadset to the Digital Inputs D0 – D17 connector on the opposite end of the MS-250 and fasten the thumb screws. NOTE: Each digital line has a ground connection for optimal performance. Two additional ground leads common to the whole leadset are also available.
MS-250 Mixed Signal Oscilloscope Option Digital Connections Connect the Digital Leads to the digital lines you wish to observe (using accessory microgrippers, if desired). Digital Banks Each 18-channel lead set is divided into two physical banks of 9 leads, and each bank is bundled with a plastic separator. When connecting the leads, note that each bank (D0-D7, D8-D15, etc.
Operator's Manual Digital Setup Digital Logic Setup Each lead bank requires a Logic Setup to determine the assignment of a 1 or 0, depending on the measured voltage relative to the Threshold. Threshold Level The threshold level determines how the input signal is interpreted. Input voltages less than the threshold are converted to 0, while input voltages greater than the threshold are converted to 1. To set Threshold: 1. Go to Vertical > Digital 1 Setup to Display the Digital Setup dialog.
MS-250 Mixed Signal Oscilloscope Option Minimum Voltage Swing (Hysteresis) You can define the minimum high voltage and maximum low voltage levels using the Hysteresis controls. l Minimum high voltage may be set up to 1.4 V above the threshold. l Maximum low voltage may be set up to 1.4 V below the threshold. The minimum signal swing is 100 mV. The indeterminate range of 50 mV around the threshold voltage level is the level below which the MS-500 will not operate.
Operator's Manual Digital Group Setup This procedure organizes the digital lines into groups, which correspond to buses. The lines within a single group can be displayed individually, or collapsed into a Bus trace. You can set up a total of two, distinct groups: Digital1 and Digital2 . Each group is designated by its own Digital setup dialog. Any lines from any lead bank can be combined into a single group, and individual lines can be assigned to as many groups as you wish.
MS-250 Mixed Signal Oscilloscope Option Displaying Digital Traces The Trace On checkbox is selected by default, so if you are connected to a live input, you should see digital traces appear as you add lines to the group. To turn off the trace display, clear Trace On. CAUTION. Do not use the All Lines Off or All Lines On buttons to control the display. Doing so will erase your digital group set up. Use the Trace On checkbox to show or hide the traces.
Operator's Manual Digital bus trace 1 division high starting at position 4. Store Display To store the entire group and display setup to an internal memory, touch the Store button at the far right of the dialog. You can recall this setup to the grid in the future by choosing Math > Memory Setup and selecting Trace On for the respective memory. Renaming Digital Lines You can give each line a user-defined name to make the interface more intuitive. 1.
MS-250 Mixed Signal Oscilloscope Option Digital Triggering Setting Up Digital Triggers To access the Trigger setup dialogs, do one of the following: l Choose Trigger > Trigger Setup from the menu bar l Press the front panel Trigger Setup button l Touch the Trigger descriptor box The main Trigger dialog contains the trigger type selections. Other controls will appear depending on the trigger type selection (e.g., Slope for Edge triggers). These are described in the set up procedures for each trigger.
Operator's Manual 1. Open the Digital Pattern dialog. 2. At the far right of the dialog, choose either Logic Bus or Logic. 3. Optionally, deselect Filter Out Unstable Conditions. This default filter ignores short glitches in logic state triggers that last less than 3.5 ns. 4. If using Logic Bus, touch Source and select the digital group. Any lines that are not in this group will now be disabled. 5. To apply a digital logic pattern, either: l l Enter the hexadecimal value of the pattern (in Hex or Value).
MS-250 Mixed Signal Oscilloscope Option Analog Pattern 1. To add the analog pattern to the digital pattern, leave your digital pattern as is and skip to step 2. To create an analog-only pattern, touch Set All To... and select Don't Care. This will eliminate any meaningful digital pattern and activate all the Boolean operators. 2. Touch the Left Arrow button until the C1-EXT group of inputs is displayed in the main section of the dialog. 3.
Operator's Manual Edge Trigger Edge triggers upon a achieving a certain voltage level in the positive or negative slope of the waveform. It is the default trigger selection on standard oscilloscopes. On the Trigger dialog, select Edge trigger type to display the controls. 1. Choose the Source digital line. 2. Choose the Slope (edge) upon which to trigger. 3. Choose the Logic Family that marks the High-Low logic threshold.
MS-250 Mixed Signal Oscilloscope Option Width Trigger Width triggers upon finding a positive- or negative-going pulse width when measured at the specified voltage level. On the Trigger dialog, select Width trigger type to display the controls. 1. Choose the Source input line. 2. Choose the line Polarity on which to trigger. 3. Choose the Logic Family that marks the High-Low logic threshold. To enter a custom threshold, choose Logic Family User Defined and enter the voltage Level .
Operator's Manual Glitch Trigger Glitch triggers upon finding a fixed pulse-width time or time range. On the Trigger dialog, select Smart trigger type, then Glitch to display the controls. 1. Choose the Source input line. 2. Choose the Polarity on which to trigger. 3. Choose the Logic Family that marks the High-Low logic threshold. To enter a custom threshold, choose Logic Family User Defined and enter the voltage Level .
MS-250 Mixed Signal Oscilloscope Option Interval Trigger Interval triggers upon finding a specific interval, the time (period) between two consecutive edges of the same polarity: positive to positive or negative to negative. Use the interval trigger to capture intervals that fall short of, or exceed, a specified range. On the Trigger dialog, select Smart trigger type, then Interval to display the controls. 1. Choose the Source input line. 2. Choose the Slope (edge) from which to measure. 3.
Operator's Manual Dropout Trigger Dropout triggers when a signal loss is detected. The trigger is generated at the end of the timeout period following the last edge transition that meets the trigger conditions. It is used primarily in single-shot applications with a pre-trigger delay. On the Trigger dialog, select Smart trigger type, then Dropout to display the controls. 1. Choose the Source digital line. 2. Choose the Slope (edge) to watch for transitions. 3.
MS-250 Mixed Signal Oscilloscope Option Qualified Trigger Qualified arms the trigger on the A event, then fires on the B event. In Normal trigger mode, it automatically resets after the B event. The options for the B event depend on the type of A event. You may apply additional Holdoff by time or number of events. On the Trigger dialog, select Qualified or MultiStage > Qualified trigger type to display the controls, depending on your oscilloscope. Then, on the Qualified dialog choose the A and B events.
Operator's Manual Maintenance Cleaning Clean only the exterior of the product using a soft cloth moistened with water or an alcohol solution. Do not use harsh chemicals or abrasive elements. Under no circumstances submerge the device or allow moisture to penetrate it. CAUTION. Do not attempt to clean internal parts. Refer to qualified service personnel. Calibration Your MS-250 hardware does not need periodic calibration.
MS-250 Mixed Signal Oscilloscope Option The Datasheet published on the product page contains the detailed product specifications. You can also download Oscilloscope System Recovery Tools and Procedures, which contains instructions for using Acronis® True Image® Home included with the oscilloscope. Returning a Product for Service Contact your local Teledyne LeCroy service center for calibration or other service.
Operator's Manual Reference Certifications EMC Compliance EC DECLARATION OF CONFORMITY - EMC The product meets the intent of EC Directive 2004/108/EC for Electromagnetic Compatibility. Compliance was demonstrated to the following specifications as listed in the Official Journal of the European Communities: EN 61326-1:2:2013, EN 61326-2-1:2013 EMC requirements for electrical equipment for measurement, control, and laboratory use.
MS-250 Mixed Signal Oscilloscope Option Safety Compliance EC DECLARATION OF CONFORMITY - LOW-VOLTAGE The product meets the intent of EC Directive 2006/95/EC for Product Safety.
Operator's Manual Warranty THE WARRANTY BELOW REPLACES ALL OTHER WARRANTIES, EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED TO ANY IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS, OR ADEQUACY FOR ANY PARTICULAR PURPOSE OR USE. TELEDYNE LECROY SHALL NOT BE LIABLE FOR ANY SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, WHETHER IN CONTRACT OR OTHERWISE. THE CUSTOMER IS RESPONSIBLE FOR THE TRANSPORTATION AND INSURANCE CHARGES FOR THE RETURN OF PRODUCTS TO THE SERVICE FACILITY.
MS-250 Mixed Signal Oscilloscope Option Contact Us United States and Canada World Wide Corporate Office Teledyne LeCroy Corporation 700 Chestnut Ridge Road Chestnut Ridge, NY, 10977-6499, USA Ph: 800-553-2769 / 845-425-2000 FAX: 845-578-5985 teledynelecroy.com contact.corp@teledynelecroy.com customersupport@teledynelecroy.com United States - Protocol Solutions Group Teledyne LeCroy Corporation 3385 Scott Boulevard Santa Clara, CA, 95054, USA FAX: 408-727-0800 teledynelecroy.
924976-00 November, 2014
