Genesis GEN3t, User Manual

Page: 700 / 1124

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. Specifications valid for channel to channel and card to card, all specifications are typical statistical values and measured using a
500 kS/s sample rate with sine wave ranging from 100 Hz to 100 kHz or filter frequency, whichever is reached first.
Range
±
1 mV Ranges ≥
±
10 mV
Ranges combined
Wideband 200 ns 30 ns 200 ns
Bessel IIR 100 ns 30 ns 100 ns
Butterworth IIR 100 ns 30 ns 100 ns
Elliptic IIR 110 ns 30 ns 110 ns
Elliptic IIR Band Pass 80 ns 30 ns 80 ns
GN840B/GN1640B 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.
0
Frequency [kHz]
-180
-160
-140
-120
-100
-80
-60
-40
-20
0.01 0.1 1 10 100
±
1 mV: Crosstalk overview
Magnitude
[d
B
]
Figure A.248: Representative Channel to Channel crosstalk
On
-
board Memory
Per card 2 GB (1 GSample @ 16 bits, 500 MS @ 24 bits storage)
Organization Automatic distribution amongst enabled channels
Memory diagnostics Automatic memory test when system is powered and not recording
Storage sample size 16 bits, 2 bytes / sample
24 bits, 4 bytes / sample (Required for Timer/Counter usage)
GEN3t
700 I3995-3.1 en HBM: public