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Reference Channel
Demodulators and Output Processing
Oscillator - General
Sinusoidal Input
Level
Frequency Range
Squarewave Input
Level
Frequency Range
Phase Set Resolution
Phase Noise at 100 ms TC, 12 dB/octave slope
Internal Reference
External Reference
Orthogonality
Acquisition Time
Internal Reference
External Reference
Reference Frequency Meter Resolution
Output Zero Stability
Digital Outputs
Displays
DAC Analog Outputs
Harmonic Rejection
Output Filters
Time Constant
Slope (roll-off)
5 ms
TC
TC > 10 ms
Synchronous Filter
Offset
Phase Measurement Resolution
Reference Monitor
Frequency
Range
Setting Resolution
Absolute Accuracy
Amplitude
Range
Setting Resolution
Accuracy
Stability
Distortion (THD)
Appendix A, SPECIFICATIONS
1.0 V rms
0.3 Hz to 250 kHz
250 mV rms
2 Hz to 250 kHz
0.001º increments
< 0.0001º rms
< 0.01º rms @ 1 kHz
90º ±0.0001º
instantaneous acquisition
2 cycles + 1 s
4 ppm or 1 mHz, whichever is the greater
No zero drift on all settings
No zero drift on all settings
< 100 ppm/ºC
-90 dB
10 µs to 100 ks in a 1-2-5 sequence
6 or 12 dB/octave
6, 12, 18 or 24 dB/octave
Available for F < 20 Hz
Auto/Manual on X and/or Y: ±300% F.S.
0.01º
TTL signal at current reference frequency,
internal or external
0.001 Hz to 250 kHz
1 mHz
± 50 ppm
1 µV to 5 V
1 µV when set to less than 1 mV
10 µV when set between 1 mV and 40 mV
250 µV when set between 40.001 mV and 1 V
1.25 mV when set between 1.000001 V and 5 V
±0.2% typ
50 ppm/ºC
-80 dB @ 1 kHz and 100 mV rms
A-3
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