AppendixA Specifications
NI5620 User Manual A-4 ni.com
Triggering
Modes.....................................................Immediate, software, digital
Sources....................................................PFI1, RTSI<0..7>, PXI star
Export.....................................................RTSI<0..7>, PFI 1
Slope.......................................................Rising, falling
Pretriggerdepth ......................................Up to 16 MS
Posttriggerdepth .....................................Up to 16 MS
Minimumpulse width .............................100 ns
PFI 1 Input/Output
PFI1 Connector......................................SMB male
Triggerlevel ...........................................TTL
Maxinput voltage ...................................5.5 V
External Frequency Reference Input
Connector(REF CLK IN) ......................SMA female
Impedance...............................................50Ω
Inputamplitude .......................................–5 to +15 dBm
Maxnonoperating input level .................+16 dBm
MaxDC input voltage ............................±10 VDC
Frequency...............................................10 MHz
Required frequency accuracy.................±40 ppm