Hardware Description
ComTec GmbH
3-9
The AUX/REJECT inputs can be used for additional coincidence conditions (also refer the
corresponding software chapters).
The AUX I/O's also provide some software selectable output signals (ref. chapter 5.1.7).
3.3.3. ADC
GATE
Inputs
Each ADC port has an individual GATE input associated and a Common GATE as well.
These allow to selectively switch data acquisition on and off during a running measurement.
3.3.4. 48Bit
Realtime
Clock
A 48 bit Real Time Clock with a resolution of 6.4ns allows to investigate the timely development
of ADC events.
It provides the ability to tag any SINGLE or COINCIDENCE event with its corresponding arrival
time.
The active going edge of DEAD is used for realtime capture.
IOBUF
AUX_IO
GND
33
AUX
10k
+3.3V
AUX_IN
AUX_OUT
AUX_OE
Fig. 3.8: AUX / REJECT I/O logic
1
9
2
10
3
11
4
12
5
13
6
14
7
15
8
M1
M2
DB15HDF
GND
GND
GND
ADC_GATE_IN 1
ADC_GATE_ALL
COUNT_CARRY_OUT 1
COUNT_CARRY_OUT 2
ADC_GATE_IN 2
ADC_GATE_IN 3
ADC_GATE_IN 4
ADC_GATE_IN 5
ADC_GATE_IN 6
ADC_GATE_IN 7
ADC_GATE_IN 8
Fig. 3.9: ADC GATE input connector