Tektronix VX4101A A6 VX4101A MultiPaq Instrument User Manual, Table A11: Time Interval , Table A12: Frequency Ratio , Table A13: Channels 1 and 2 Totalizer , Table A14: Channels 1 and 2 Rise/Fall Time

Appendix A: Specifications
A–6 VX4101A MultiPaq Instrument User Manual
Table A–11: Time Interval
Characteristics Description
Frequency Range Up to 250 MHz (500 MHz with option 1C)
Up to 150 MHz for Time Interval with Delay
Range –1 ns to 9 million seconds
Least Significant Digit 250 ps for N = 1, single-shot
(1 ns/√N) for N > 1 rounded downward to the nearest decade.
Resolution ±LSD±1.414 ((TJE1 + TJE2)/√N)±2 ps
Accuracy ±TBE (Time Interval) ± Resolution + (TLE1/SlewS – TLE2/SlewE)±200 ps
Table A–12: Frequency Ratio
Characteristics Description
Ch 1/Ch 2 and Ch 2/Ch 1 10–14 to 1014
Ch 1/Ch 3 and Ch 2/Ch 3 with Option 2C 10–15 to 1
Ch 3/Ch 1 and Ch 3/Ch 2 with Option 2C 1 to 1015
Table A–13: Channels 1 and 2 Totalizer
Characteristics Description
Range 1 to 252 (4.5 × 1015)
Least Significant Digit One count.
Table A–14: Channels 1 and 2 Rise/Fall Time
Characteristics Description
Frequency Range Up to 250 MHz
(0.5 Vp-p minimum signal for specified accuracy).
Range 250 ps single-shot
1 ns to 9 million seconds
Least Significant Digit 250 ps for N = 1, single-shot
(1 ns√N) for N > 1 rounded downward to the nearest decade.
Resolution LSD±1.414 ((TJE1 + TJE2)/√N)±2 ps RMS
Accuracy ±TBE (Time Interval) ±Resolution + (TLE2/SlewS – TLE1/SlewE)±200 ps