Channel to Channel Phase Match
Using different filter selections (Wideband/Bessel IIR/Butterworth IIR/etc.) or different filter bandwidths results in phase mismatches between
channels. All specifications are typical static values and measured using a 100 kHz sine wave and 2 MS/s sample rate.
Wideband
Channels on card
0.5 deg (14 ns)
GN610 Channels within mainframe
0.5 deg (14 ns)
Bessel IIR, Filter frequency 200 kHz
Channels on card
0.6 deg (17 ns)
GN610 Channels within mainframe
0.6 deg (17 ns)
Butterworth IIR, Filter frequency 200 kHz
Channels on card
0.5 deg (14 ns)
GN610 Channels within mainframe
0.5 deg (14 ns)
Elliptic IIR, Filter frequency 200 kHz
Channels on card
0.5 deg (14 ns)
GN610 Channels within mainframe
0.5 deg (14 ns)
GN610 channels across mainframes
Defined by synchronization method used (None, IRIG, GPS, Master/Slave, PTP)
Channel to Channel Crosstalk
Channel to channel crosstalk is measured with a 50 Ω termination resistor on the input and uses sine wave signals on the channel above and
below the channel being tested. To test Channel 2, Channel 2 is terminated with 50 Ω and Channels 1 and 3 are connected to the sine wave
generator.
Frequency [kHz]
Magnitude
[dB
]
40 mV: Crosstalk overview
-140
-160
-180
-120
-100
-80
-60
-40
-20
0
0.01
0.1
1
10
100
1000
Figure A.102:
Representative Channel to Channel crosstalk
On
-
board Memory
Per card
2 GB (1 GS @ 16 bits, 500 MS @ 18 bits storage)
Organization
Automatically distributed amongst channels enabled for storage or real
-
time calculations
Memory diagnostics
Automatic memory test when system is powered on but not recording
Storage sample size
User selectable 16 or 18 bits
16 bits, 2 bytes/sample
18 bits, 4 bytes/sample (required for Timer/Counter usage)
GEN3i
506
I3763-3.1 en HBM: public
