Stanford SR620 频率计数器 (1.3 GHz)
制造商: Stanford Model: SR620 保障: 12 Month - 报价要求
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Timebase:
Frequency: Standard: 10.000 MHz; Option 01: 10.000 MHz
Type: Standard: TCVCXO; Option 01: Ovenized VCXO
Aging: Standard: 1 × 10-6/yr; Option 01: 5 × 10-10/day
Allan variance (1 s): Standard: 3 × 10-10; Option 01: <5 × 10-12
Stability 0 to 50 °C: Standard: 1 ppm; Option 01: <2 × 10-9
Settability: Standard: 0.01 ppm; Option 01: 0.001 ppm
Time Interval, Width, Rise/Fall Time:
Range: -1000 to +1000 s in +/-TIME mode; -1 ns to +1000 s in all other modes
Trigger rate: 0 to 100 MHz
Display LSD: 4 ps single sample, 1 ps with averaging
Resolution:
Std. timebase: (((25 ps typ. [50 ps max.])2 + (0.2 ppb × Interval)2) / N)1/2 rms
Option 01: (((25 ps typ. [50 ps max.])2 + (0.05 ppb × Interval)2) / N)1/2 rms, (N = sample size)
Error: <±(500 ps typ. [1 ns max.] + Timebase Error × Interval + Trigger Error)
Frequency:
Range: 0.001 Hz to 300 MHz via comparator inputs. 40 MHz to 1.3 GHz via internal UHF prescalers. RATIO A/B range: 10-9 to 103
Error: <±((100 ps typ. [350 ps max.])/Gate + Timebase Error ) × Frequency
Period:
Range: 0 to 1000 s; RATIO A/B range: 10-9 to 103
Error: <±((100 ps typ [350 ps max])/Gate + Timebase Error) × Period
Phase:
Definition: Phase = 360 × (Tb - Ta) / Period A
Range: -180 to +180 degrees, 0 to 100 MHz
Resolution: (25 ps × Freq. × 360 + 0.001)°
Error: <±(1 ns × Freq. × 360 + 0.001)°
Counts:
Range: 1012, RATIO A/B range: 10-9 to 103
Count Rate: 0 to 300 MHz
Gates: Same as frequency
Display: 12 digits
Inputs:
Bandwidth: 300 MHz, 1.2 ns rise time
Threshold: -5.00 to +5.00 VDC (10 mV resolution)
Accuracy: 15 mV + 0.5 % of setting
General:
Operating: 0 °C to 50 °C
Power: 70 W, 100/120/220/240 VAC (+5 %, -10 %), 50/60 Hz
Dimensions: 14" × 3.5" × 14" (WHL)
Weight: 11 lbs.
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