Appendix D
Data Streaming and Capture
173
SR865A DSP Lock-in Amplifier
If the packet contains integer XY data:
Data bytes
Byte
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
…
Data
X(0)
Y(0)
X(1)
Y(1)
X(2)
Y(2) X(3) Y(3) X(4) Y(4)
…
The maximum sample rate is 1.25MHz. If floating-point XYR
θ
data is streamed, then the
data rate can exceed 1.25 MHz × 4 channels × 4 bytes = 20 MBytes/s. This data rate
requires Gigabit ethernet to work. Fast (100Mb/s) ethernet is not sufficient to support the
maximum data rate. At high data rates, we recommend putting the SR865A and the
receiving computer on the same dedicated network. This reduces traffic congestion for
other users, and reduces the chance of dropped packets.
Summary of Contents for SR865A
Page 5: ...Safety and Preparation For Use iii SR865A DSP Lock in Amplifier...
Page 6: ...iv Safety and Preparation For Use SR865A DSP Lock in Amplifier...
Page 54: ...36 Getting Started Chapter 1 SR865A DSP Lock in Amplifier...
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Page 186: ...168 The FFT Display Appendix B SR865A DSP Lock in Amplifier...
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