National Instruments 6023E, 6024E, 6025E Triggers Digital Trigger, Calibration, Power Requirement

AppendixA Specificationsfor PCMCIA Bus
©NationalInstruments Corporation A-17 6023E/6024E/6025EUser Manual
Baseclocks available
Counter/timers................................ 20 MHz, 100 kHz
Frequencyscalers ............................10 MHz, 100 kHz
Baseclock accuracy............................... ±0.01%
Maxsource frequency ............................20 MHz
Mins ource pulseduration ......................10 ns in edge-detect mode
Mingate pulse duration ..........................10 ns in edge-detect mode
Data transfers .........................................Interrupts, programmedI/O
Triggers
Digital Trigger
Compatibility......................................... TTL
Response................................................ Rising or falling edge
Pulsewidth ............................................. 10 ns min
Calibration
Recommendedwarm-up time ................ 30 min
Interval...................................................1 year
Externalcalibration reference ................ > 6 and < 10 V
Onboard calibration reference
Level............................................... 5.000 V (±3.5 mV) (actual
valuestored in EEPROM)
Temperaturecoefficient .................. ±5 ppm/°Cmax
Long-termstability .........................±15 ppm/
Power Requirement
+5VDC (±5%).......................................270 mA
Note Excludes powercon sumed through Vcc availableat the I/O connector.
Power available at I/O connector........... +4.65 to +5.25 VDC at 0.75 A
1 000 h,