A simple, precise, and low jitter delay/gate generator

Kalisz, J.; Poniecki, A.; Różyc, K.

doi:10.1063/1.1578707

Cited by 24 publications

(13 citation statements)

References 7 publications

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“…Some solutions have been presented in the literature, based on ring oscillators [18] or delay locked loops [19], but still they do not achieve the required performance in terms of timing jitter since they feature a time resolution greater than 100 ps. A third solution implemented in a complex programmable logic device (CPLD) [20] meets all of the timing specifications and is based on a high accuracy programmable desktop signal generator. The FPGA can substitute the CPLD, whereas the Si5326 chip can replace the signal generator, to create this same structure.…”

Section: B Logic Stagementioning

confidence: 99%

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Eight-Channel Fully Adjustable Pulse Generator

Miari

Antonioli

Labanca

et al. 2015

IEEE Trans. Instrum. Meas.

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This paper describes an eight-channel differential pulse generator based on a fast differential bipolar transistor output stage. It has been designed specifically to test new multichannel time-correlated single-photon counting (TCSPC) instruments, while maintaining a wide range of regulation possibilities in terms of frequency, amplitude, delay, and duty cycle. The input signal for each channel can be provided either by an on-board programmable frequency synthesizer or by an external reference shared by all channels. The chosen input is delivered to a delayer loop controlled by a field programmable gate array (FPGA), which provides the desired delay, minimizing the jitter contribution. The delayed signal is fed to an analog differential stage that provides the fast output, whose amplitude and offset are adjusted by a digital-to-analog converter, controlled by the FPGA. The experimental results on the instrument show an output slew rate of 1600 V/$mu text{s}$ over the complete full-scale range, which is between -2 and 6 V. The feedback delayer regulates the delay between 0 ns and 30 $mu text{s}$ whereas the high time is adjustable from a minimum of 10 ns to a maximum of 30 $mu text{s}$ . Finally, the frequency range is from 2 kHz to 50 MHz. All these adjustable parameters are managed by a microcontroller that works as an interface between the FPGAs and dedicated PC software. The implemented structure allows the system to achieve a time resolution down to 6 ps across all channels, making this instrument perfect for testing high time resolution TCSPC systems

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Section: B Logic Stagementioning

confidence: 99%

“…This has been evaluated through a state-of-theart TCSPC system (SPC-130 from Becker and Hickl, used in single acquisition mode [20]) by sending two outputs of the pulse generator to its start and stop inputs, and using them to measure the time resolution between different channels of the pulse generator. Fig.…”

Section: B Time Resolutionmentioning

confidence: 99%

Eight-Channel Fully Adjustable Pulse Generator

Miari

Antonioli

Labanca

et al. 2015

IEEE Trans. Instrum. Meas.

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“…A commonly used interpolation method in TIGs involves phase shifting of a reference clock [3, 13−16]. Other ways of getting both wide generation range and high TI resolution are based on counting a certain number of periods of selected values [17] or finding coincidence between two clocks that operate on slightly different frequencies [18].…”

Section: Introductionmentioning

confidence: 99%

“…Programmable arrays can be used either as a complete platform that performs timing generation [3,15,16,18] or just as a part of generator [13,14,17,19,20]. FPGA buildin DLLs and PLLs greatly facilitate TIG integration in a single chip but, so far, cannot generate as low-jitter TIs as those using external modules, e.g.…”

Section: Introductionmentioning

confidence: 99%

5 ps Jitter Programmable Time Interval/Frequency Generator

Kwiatkowski

Różyc

Sawicki

et al. 2017

Metrology and Measurement Systems

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A new time interval/frequency generator with a jitter below 5 ps is described. The time interval generation mechanism is based on a phase shifting method with the use of a precise DDS synthesizer. The output pulses are produced in a Spartan-6 FPGA device, manufactured by Xilinx in 45 nm CMOS technology. Thorough tests of the phase shifting in a selected synthesizer are performed. The time interval resolution as low as 0.3 ps is achieved. However, the final resolution is limited to 500 ps to maximize precision. The designed device can be used as a source of high precision reference time intervals or a highly stable square wave signal of frequency up to 50 MHz.

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“…Of special importance are the precise TI generators, on which stringent stability requirements for generated intervals are imposed. The TI instability value characterizes a level of random changes of the intervals, and for the precise generators it varies from tens of picoseconds (for the already out of date И1 8 time shift source) to a few picoseconds (for the T5300U up to date generator from the VIGO System S.A. company [1]). …”

Section: Introductionmentioning

confidence: 99%

An instability estimation of precision time intervals

2012

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A method for estimating the instability of time intervals (TIs) is described, when they are mea sured simultaneously (in parallel) by two measuring units. The method is based on the calculation of the cova riance of parallel measurement results and statistical averaging and is intended to investigate instabilities in picosecond and subpicosecond ranges. The relative error of the method is estimated by a computing experi ment and depends on the amount of the measured data and error values of the used TI meters. An example of the setup, which allows one to evaluate the TI instability up to 0.4 ps with a relative error of no more than 10%, is given. The experimental data on the TI instability in the picosecond (for AFG3252 two channel gen erator, it varies from 2.4 to 5.2 ps for intervals of the microsecond range) and subpicosecond (for the TI gen erator based on a quartz voltage controlled oscillator from the FORDAHL company, it is 0.86 ps) ranges are obtained.

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A simple, precise, and low jitter delay/gate generator

Cited by 24 publications

References 7 publications

Eight-Channel Fully Adjustable Pulse Generator

Eight-Channel Fully Adjustable Pulse Generator

5 ps Jitter Programmable Time Interval/Frequency Generator

An instability estimation of precision time intervals

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