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| The '''Tektronix TDS694C''' is a four-channel, 3 GHz, 10 GS/s digital scope. The project codename was 'Screamer'.
| | #redirect[[TDS694C]] |
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| No earlier revisions (TDS694B etc) appear to have been released.
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| These scopes contain ICs in the triggering system that are known to fail, commonly understood to be for thermal reasons. Three ICs are present: Ch 1/2, Ch 3/4, 'Other' (ext trig?). The ICs appear to have poor thermal contact with the PCB; when failed, the scope will no longer trigger on the relevant channels (however, signals will still be acquired). It is possible to transplant these ICs with standard SMT hot-air rework equipment. The 'Other' IC has been used as a donor in some cases.
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| Do not operate this scope without the case on, WITHOUT extra cooling means.
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| The low (by modern standards) memory length, coupled with the high sample rate of this scope, means that it is best described as a 'one-shot' (or 'transient') digitizer. At the fastest sweep (100ps/div), only 3uS of data can be captured with the standard memory allocation.
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| {{BeginSpecs}}
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| {{SpecGroup|Acquisition}}
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| {{Spec | Sampling rate | 10 GS/s on each channel simultaneously }}
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| {{Spec | Analog bandwidth | 3 GHz (all ranges; 10 mV - 1V/div) }}
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| {{Spec | Inputs | 4 Channels; 50 Ohm (DC/GND) only }}
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| {{Spec | Resolution | 8 bit }}
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| {{Spec | Record length | 30K samples per channel; 120K samples with option 1M }}
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| {{Spec | Modes | sample, envelope, peak detect, average }}
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| {{SpecGroup|Misc}}
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| {{Spec | Display | 7" diag (640 x 480) color CRT; Zoom }}
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| {{Spec | Trigger modes | Edge, logic, pulse }}
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| {{Spec | Storage | 1.44 Mbyte, 3.5 inch, DOS 3.3-or-later floppy disk. Internal hard disk drive (2.1 Gb capacity) with Option 2M. NVRAM storage for saving waveforms, hardcopies, and setups. 'Iomega Zip Drive compatible'. }}
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| {{Spec | I/O | Full GPIB programmability; VGA output }}
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| {{Spec | Hardcopy output | using GPIB, RS-232, or Centronics ports }}
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| {{EndSpecs}}
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| ==Pictures==
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| <gallery>
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| Tek tds694c trace.jpg|TDS694C
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| Tek tds694c trace2.jpg|TDS694C
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| Tek tds694c rear1.jpg|TDS694C
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| Tek tds694c rear2.jpg|TDS694C
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| </gallery>
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| [[Category:TDS600 series scopes]] | |
| [[Category:Introduced in (?)]]
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