Newport New Focus 3502, Руководство пользователя

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6
Specifications
6.1
Chopping Frequency
Please note that specifications are subject to change without notice.
Wheel
Min. Freq.
(F
outer
)
Max. Freq.
(F
outer
)
Jitter (
P
s p-p, typical)
@ Min.
Freq.
@ Max.
Freq.
100 200 Hz 10.65 KHz 200 5
60 120 Hz 6.40 KHz 150 3
42/30 84 Hz 4.48 KHz 150 5
7/5 14 Hz 746 Hz 1000 15
2 4 Hz 213 Hz 2000 50
6.2
Internal Synthesizer
Stability 100 ppm after one hour warm-up.
Drift Less than 10 ppm/°C.
Accuracy < 1/5 of least significant digit.
Resolution 4.00 Hz - 99.9 kHz, 3 significant digits.
Range limits (INT) Upper: [Highest wheel frequency]·S/H.
Lower: [Lowest wheel frequency]·S/H.
Range limits (EXT) 4.00 Hz – 99.9 kHz
6.3
Reference Input
Sync In
TTL-level pulse, with same frequency limits as internal
oscillator.
Pulse width ≥ 1 μ s.