Teledyne Princeton Instruments NIRvana HS, System Manual

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58 NIRvana HS System Manual Issue 1.0
8.1.3 Full Frame Readout versus Expose During Readout
When deciding on the readout mode to be used, keep in mind that:
• Expose During Readout provides the fastest Frame Rate;
• Full Frame Readout provides the lowest noise readout.
Table 8-1 compares frame rates for these two Readout modes for a variety of Exposure
Times and Readout Rates.
Table 8-1: Full Frame Readout vs. Expose During Readout Frame Rate Comparison
Expose
Time
Full Frame Readout Expose During Readout
Clock (MHz) Clock (MHz)
3 MHz 12 MHz 25 MHz 3 MHz 12 MHz 25 MHz
Readout Time (ms) Readout Time (ms)
31 7.8 3.9 31 7.8 3.9
100

s 32.3 128.9 257.7 32.3 129.0 258.4
500

s 32.2 128.2 255.1 32.3 129.0 258.4
1 ms 31.3 114.3 205.3 32.3 129.0 258.4
5 ms 27.8 78.4 112.7 32.3 129.0 200.0
10 ms 24.4 56.3 72.1 32.3 100.0 100.0
50 ms 12.3 17.3 18.3 20.0 20.0 20.0
100 ms 7.6 9.3 9.6 10.0 10.0 10.0
500 ms 1.9 2.0 2.0 2.0 2.0 2.0
1 sec 1.0 1.0 1.0 1.0 1.0 1.0
5 sec 0.2 0.2 0.2 0.2 0.2 0.2
10 sec 0.1 0.1 0.1 0.1 0.1 0.1
EDR Compared with FFR
Increase < 3%
Increase 3% – 10%
Increase 11% – 25%
Increase > 26%