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The TDC2 is a timestamping/timetagging device for processing electrical pulses in four independent inputs. It can accept standardized signal standards including (NIM and TTL) and requires an external +12V power input . The internal clock source can be disciplined by an external 10 MHz timing reference for precise absolute timing.
The device registers the absolute time of the leading edge every signal event (pulse) at any of the input lines with a resolution of 8ps (30ps jitter) for pulses separated by more than 50ns.
The TDC2 requires a driver which is available for Linux OS for now.
|Size||124 x 70 x 21mm
|Power Socket||+12V (accepts 2.1mm barrel plugs)|
|Input standards||TTL, NIM, custom (positive or negative pulses with a trigger
level between -1V and +2V)
|Maximum pulse width||10ns|
|Minimal pulse separation||50ns (30ps jitter), 10ns (>30ps)
|Connector||SMA size coaxial connector (other connectors available as custom)
|External reference frequency||10MHz nominal (accepts 9...11MHz)|
|External reference amplitude||100mVpp min, 2.3Vpp max|
Internal clock accuracy
|<100ppm, temperature drift TBD|
|Maximal event rate||>2Mevents/s average|
|Time between detectable events
||50ns (events <50ns interval will have larger jitter up to minimum of 10ns interval)
|Host connection||Requires minimum Linux Kernel 4.4. Driver will be provided.
|Text or binary|
||Sample scripts in C will be provided.