Appendix
-
Specification
ComTec GmbH
Appendix 4-2
4.1.4. Connectors
SIGNAL Input
Input impedance:
dc coupled ................................................................................. 1 k
Ω
Connector type:
....................................................................................................BNC
GATE / START Input
PHA/SVA mode:
Input impedance:
COINCidence mode ................................................. 4.7 k
Ω
to +5 V
ANTIcoincidence mode ............................................ 4.7 k
Ω
to GND
Input HIGH voltage:
........................................................................................ min. +2.5 V
Input LOW voltage:
....................................................................................... max. +0.4 V
Pulse width:
............................................................................................. > 100 ns
TDC mode:
Input impedance:
diode protected...........................................................................50
Ω
Threshold voltage:
............................................... -1 V … -100 mV, in steps of 1.22 mV
Pulse width:
below threshold ....................................................................... >2 ns
Sensitivity:
................................................. falling edge initiates time conversion
STOP Input
Input impedance:
diode protected...........................................................................50
Ω
Threshold voltage:
............................................... -1 V … -100 mV, in steps of 1.22 mV
Pulse width:
below threshold ....................................................................... >2 ns
Sensitivity:
.............................................falling edge terminates time conversion
MONITOR Output
Output impedance:
........................................................................................... 1.4
Ω
typ.
Output current:
.......................................................................... > 26 mA, 34 mA typ.
Short-circuit current:
V
OUT
= 0 V......................................................... > 40 mA, 54 mA typ.
Gain Error:
.........................................................................................
≤
±
2% typ.
Offset: ......................................................................................
≤
±
4 mV typ.
4.1.5. Default
Settings
ADC Conversion range:
.................................................................................................. 8192
TDC Time range:
.................................................................................................. 50 ns
TDC threshold:
............................................................................................. -500 mV
ADC threshold:
.............................................................................................. +20 mV