Mixed-signal oscilloscope family
30 October 2008
The new Yokogawa DLM2000 Series is a new family of mixed-signal oscilloscopes (MSOs) that represent a major step forward in terms of price/performance specification and ease-of-use.
With up to 500 MHz bandwidth and 2 GS/s sampling speed, the new oscilloscopes have the longest memory (up to 125 M points) and fastest update rate (up to 450,000 waveforms per second) in this class of instrument. In addition, the combination of flexible analogue and digital inputs, plus a large-screen display in a compact ergonomically styled body, makes the instruments exceptionally easy to use.
"Mixed-signal oscilloscopes represent the fastest-growing sector of the oscilloscope market, and this new range brings advanced MSO performance into the same affordable price bracket as portable general-purpose oscilloscopes", comments Terry Marrinan, sales and marketing director, Europe and Africa, for Yokogawa Test & Measurement Centre Europe. "We believe that the DLM2000’s combination of high performance, user-friendly features and affordability will make it a real winner."
In addition to the key performance specifications, the DLM2000 Series features a number of advanced measurement and analysis features, including histogram and trending functions, up to 20,000 history memories, digital filtering, zoom windows, user-defined mathematics and serial bus analysis.
The DLM2000 Series consists of six models: three with two channels and three with four, each covering the bandwidths 200, 350 and 500 MHz, respectively. Mixed-signal oscilloscope operation is enabled on the 4-channel models by converting the fourth channel of analogue input to 8-bit logic, so that the instrument then functions as a 3-channel analogue plus 8-bit logic MSO. A high-resolution mode (up to 12-bit) is also available. This logic capability is complemented by the availability of new logic probes with individual bit threshold setting and 100 kilohm input impedance at 250 MHz.
The new instruments feature a large (8.4 inch, 21.3cm) high-resolution (XGA) display in a compact ‘portrait’ format package that occupies the size of a single A4 sheet of paper on the benchtop. The display is enhanced by a fine grid, high luminance and viewing angle, and on-screen markers with simultaneous display of cursors and automatic parameters. Other features include backlit buttons, additional knobs and jog shuttle, on-screen information in English, German, French, Italian and Spanish languages, two zoom windows with 80:20 or 50:50 zoom/main area split, and a choice of first-cycle or screen average mode for frequency measurement.
The combination of long memory and the history function, along with sophisticated trigger and search capabilities, means that the chances of missing elusive or intermittent waveforms are minimised. Using the /M2 option, up to 125 M points of storage capacity is available, allowing, for example, 10 kHz signals to be recorded for up to 5000 seconds. Even at a sampling rate of 1.25 GS/s, waveforms down to 0.1 sec can be captured.
With the history function, up to 20,000 previously captured waveforms can be saved in the acquisition memory, and any one or all of them can be displayed on screen with the ability to carry out cursor measurements and other analysis operations including FFT analysis and comprehensive user-defined maths. Waveforms can be displayed one at a time, in order, or automatically played back, paused, fast-forwarded or rewound.
The DLM2000 Series comes with a variety of easy-to-configure triggers combining analogue and logic inputs such as edge, enhanced and B-triggers. These include dedicated trigger functions for CAN, LIN, UART, I2C and SPI serial bus patterns as well as the ability to perform simultaneous analyses on two different buses operating at different speeds. This capability is enhanced by the extensive search facilities, allowing the user to look for specific data in the very long memory. The 4-channel models in the DLM2000 Series are also able to import the CAN DBC database and either trigger on, or decode, a physical value.
Prices for the DLM2000 Series start at €3300. A dedicated website has been set up for the Yokogawa DLM2000 Series at www.dlm2000.net.
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