Measurement Computing PCI-CTR20HD - Manual (Page 17)

PCI-CTR20HD User's Guide Specifications
Parameter Conditions
X2 clock frequency
scaler
BCD scaling (X2 divided by 10, 100, 1000 or 10000) or Binary scaling (X2 divided by 16,
256, 4096 or 65536)
High pulse width
(clock input) 70 ns min
Low pulse width
(clock input) 70 ns min
Gate width high 145 ns min
Gate width low 145 ns min
Input low voltage -0.5 V min, 0.8 V max
Input high voltage 2.2 V min, Vcc max
Output low voltage @
IIl = 3.2 mA 0.4 V max
Output high voltage @
IIH = -200 µA 2.4 V min
Crystal oscillator
frequency 10 MHz
Frequency accuracy 50 ppm
Interrupts
Table 2. Interrupt specifications
Number of user interrupt
inputs Two
PCI Interrupt PCI INTA# - mapped to IRQn via PCI BIOS at boot-time
Interrupt enable External: Programmable through PLX-9030;
0 = disabled (default)
1 = enabled
External: IRQAB_IN, IRQCD_ IN, polarity programmable through PLX-9030;
1 = active high
0 = active low (default)
IRQAB_IN and IRQCD_IN pulled up through 10K resistor to +5V
IRQAB_IN maps to PLX 9030 LINT1
Interrupt sources
IRQCD_IN maps to PLX 9030 LINT2
Power consumption
Table 3. Power consumption specifications
+5V 1 A typical, 1.2 A max. Does not include power consumed through the I/O connector.
+5V available at each
I/O connector 1 A max, protected with a resettable fuse
Resettable fuse Type: Raychem miniSMDC110.
Hold Current: 1.1 A max
Series resistance: 0.21 Ω max
Environmental
Table 4. Environmental specifications
Operating temperature range 0 to 55 °C
Storage temperature range -20 to 70 °C
Humidity 0 to 90% non-condensing
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