Highland Technology V980
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Contents |
Overview
The V980 is a 16-channel time-to-digital converter used to record the time of occurrence of sixteen independent electrical pulse inputs, each measured relative to a single, common reference input. Each TDC input channel can time its event "hit" with 48.82-picosecond resolution and 48-bit dynamic range.
The module has provisions for adjustable input logic levels and selectable input edge polarity.
The V980 employs a highly linear interpolation technique, which requires a minimum of adjustments. Data is available within 200 ns of the completion of the measured time intervals, and the modules may be cleared and rearmed in less than one microsecond. All features are switch selectable.
Features
- 16-channel, 48-bit, 48-picosecond resolution TDC.
- Measures events up to 6800 seconds before or after common trigger, or 0 to +13,700 seconds after trigger.
- Adjustable trigger levels and edge polarity.
Usable as a 17-channel independent time-stamper.
- Fast readout available 200 ns after events.
- Jitter typically below 40ps RMS.
- Ultrastable, ovenized quartz crystal timebase may be locked to an external source.
- Optional custom internal microengine can qualify and analyze complex timing events.
Specifications
| CONFORMANCE | ANSI/IEEE 1014-1987 VMEbus specification. VXIC specification, Rev1.4. |
| DEVICE TYPE | Register-based slave: A16:D16:D08(EO). |
| PACKAGING | Single-width, C-size VXI module. |
| INPUTS | One common reference input (T16). Sixteen individual event inputs (T0-T15). One external input (GATE) enables event channels. Two inputs (AUX) support custom control logic. One clock I/O (CLK). |
| INPUT LEVELS | The thresholds of the event inputs are adjustable as a group in the range +-2.5 V. Their impedance (high-Z or 50 ohms) and polarity (rising or falling edge) can also be selected individually. The GATE input has a separate threshold level adjustment. Its impedance (high-Z or 50 ohms) and polarity (high or low) are also selectable. The AUX inputs are TTL-compatible. |
| OUTPUTS | AUX1 normally indicates module armed and ready to accept an event. |
| RESOLUTION | 48.828125ps, equivalent to 20.48 GHz clock. |
| RANGE | 48 bits (+-6871 seconds) for bipolar mode. |
| JITTER | Less than (75ps + 2 E-9 x measured time) RMS. |
| LINEARITY | +-0.25 LSB. |
| TIMEBASE | Internal ovenized oscillator. Accuracy is 0.01ppm/deg C; aging less than 1ppm/year. Internal phase-lock loop allows utilization of an external 10 MHz timebase. |
| INDICATORS | LEDs indicate VME access and acquisition/readout mode status. |
| CONNECTORS | Standard: SMB; Optional: LEMO. |
Manuals, drivers, downloads & other resources
http://www.highlandtechnology.com/DSS/V980DS.html
See also
V951 6-channel C-size digital delay generator
V951-6 6-channel C-sixe digital delay generator w/optical ouputs
Dealers, trainers, support, maintenance & service centers
Highland Technology, Inc.
United States
California
San Francisco
P: (415) 551-1700
F: (415) 551-5129
http://www.highlandtechnology.com
info@highlandtechnology.com
