Yokogawa is hailing its new DLM4000 as the industry’s first mixed-signal oscilloscope to feature eight channels.
Combining the large screen and 8-channel capability of the earlier 8-channel DL7480 oscilloscope with the mixed-signal technology of the DLM2000 series, the new instrument is ideally suited to test and debugging applications in the embedded systems, power electronics, mechatronics and automotive sectors.
The DLM4000 series comprises two models, with bandwidths of 350 and 500 MHz and a sampling rate of 1,25 GSps, expandable to 2,5 GS/s with interleaving. The channels can be allocated as eight analog channels or seven analog channels plus one 8-bit digital input. A future option will add 16 more channels of logic to allow seven channels of analog plus a 24-bit digital input.
The new instruments feature memory up to 62,5 Mpoints per channel and 125 Mpoints in interleave mode, allowing both long recordings and multiple waveforms to be acquired. A history memory function, which does not reduce the oscilloscope’s high waveform acquisition rate, allows up to 20 000 previously captured waveforms to be saved, with any one or all of them displayed on screen for cursor measurements to be carried out.
Waveforms can be displayed one at a time, in order, or automatically played back, paused, fast-forwarded or rewound. The history memory, in combination with the advanced waveform search features, enables users to capture and see the details of anomalies on individual waveforms when their characteristics are still unknown.
Advanced measurement and analysis features include histogram and trending functions, digital filtering, zoom windows, user-defined mathematics and serial bus analysis.
The scopes incorporate a high-resolution 12,1” XGA display, and are housed in a compact body which is less than 18 cm deep and weighs 6,5 kg. 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, 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 DLM4000 series comes with a variety of easy-to-configure triggers combining analog and logic inputs such as edge, enhanced and B-triggers. These include dedicated trigger functions for FlexRay, 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 extensive search facilities, allowing the user to look for specific data in the very long memory.
For more information contact Trevor Grundlingh, Protea Electronics, +27 (0)11 719 5700, [email protected], www.protea.co.za
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