Multiphase clock based vernier TDC on FPGA for on-chip temperature measurement application

Magadum, Sachin M; Mattada, Mahantesh P; Guhilot, Hansraj

doi:10.1109/i2ct.2017.8226244

Cited by 5 publications

(4 citation statements)

References 7 publications

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“…This process is performed by the combined effort of PLL, DCM, Array of counters and Adder shown in Fig.4. TDC used in [13] has dual PLL for time measurement with 4 phases and has an error of ¼ of time pulse. The 4 channel TDC implemented in [14] has time resolution in terms of ns.…”

Section: Time Detection Circuit (Tdc)mentioning

confidence: 99%

Enhancement of Commercial Grade VLSI Chips into Industrial Grade using a Novel Thermal Monitoring and Control Technique

Magadum*,

Guhilot

2020

IJRTE

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The aerospace and military applications demanding low cost, high performance, reliable computing chips at low operating temperature environment. In the proposed work a cost-effective solution has developed with novel mechanism to enhance use of commercial grade VLSI chips for industrial grade applications. Here the commercial grade FPGA worked satisfactorily beyond its lower temperature range typically up to - 15°C. A thermoelectric cooler is used for temperature grade extension along with temperature sensor and TDC. A fully digital onchip temperature sensor based on delay line is implemented on FPGA. The TDC used, provides a digital equivalent of variation in delay due to change in temperature with time resolution of 213ps and temperature resolution of 0.06°C throughout the operating range.

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Section: Time Detection Circuit (Tdc)mentioning

confidence: 99%

Enhancement of Commercial Grade VLSI Chips into Industrial Grade using a Novel Thermal Monitoring and Control Technique

Magadum*,

Guhilot

2020

IJRTE

Self Cite

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“…The Time-to-amplitude Converter (TAC) TDC is also easy to be implemented. However, TAC-TDC suffers from a large dead time, and the time resolution is limited by the ADC [7] . Another popular structure is the multiphase clock FPGA-TDC, which generates clocks with different phases and compares them to interpolate the clock.…”

Section: Introductionmentioning

confidence: 99%

FPGA-Based Time-to-Digital Converter for Pulsed Laser Ranging

Zhang²

2023

J. Phys.: Conf. Ser.

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This paper implements a Time-to-digital Converter (TDC) in a field-programmable gate array (FPGA), which is made for a single-photon-counting-based pulsed laser ranging system. The fine time is measured by the Tapped Delay Line (TDL) constructed in an internal dedicated carry chain of the FPGA. The length of the TDC is longer than one clock period, and the whole CARRY4 is utilized as a delay unit. The proposed TDC is made up of the fine time measurement module, encoder, coarse time counter, and data transport module, which are achieved in a resource-tensed FPGA Xilinx-ZYNQ. As this paper is done in a shared FPGA, the presented TDC can replace the ASIC-TDC GP22 as the TOF measurement module. By measuring the same time interval and modifying the fixed error in TDC, the results show that the time resolution can reach 53 ps. Compared with the ASIC-TDC GP22, both linearity and measurement range are improved in the proposed TDC, which makes the pulsed laser ranging system more flexible and integrated.

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“…Utilizing this relationship between power and supply-voltage, on-chip sensors have been successfully used for power-consumption monitoring on FPGAs [ZS + 13]. Additionally, measuring physical parameters such as temperature (beyond the scope of this paper) has also been shown to be viable [MMG17].…”

Section: Introductionmentioning

confidence: 99%

VITI: A Tiny Self-Calibrating Sensor for Power-Variation Measurement in FPGAs

Udugama

Jayasinghe

Saadat

et al. 2021

TCHES

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On-chip sensors, built using reconfigurable logic resources in field programmable gate arrays (FPGAs), have been shown to sense variations in signalpropagation delay, supply voltage and power consumption. These sensors have been successfully used to deploy security attacks called Remote Power Analysis (RPA) Attacks on FPGAs. The sensors proposed thus far consume significant logic resources and some of them could be used to deploy power viruses. In this paper, a sensor (named VITI) occupying a far smaller footprint than existing sensors is presented. VITI is a self-calibrating on-chip sensor design, constructed using adjustable delay elements, flip-flops and LUT elements instead of combinational loops, bulky carry chains or latches. Self-calibration enables VITI the autonomous adaptation to differing situations (such as increased power consumption, temperature changes or placement of the sensor in faraway locations from the circuit under attack). The efficacy of VITI for power consumption measurement was evaluated using Remote Power Analysis (RPA) attacks and results demonstrate recovery of a full 128-bit Advanced Encryption Standard (AES) key with only 20,000 power traces. Experiments demonstrate that VITI consumes 1/4th and 1/16th of the area compared to state-of-the-art sensors such as time to digital converters and ring oscillators for similar effectiveness.

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Multiphase clock based vernier TDC on FPGA for on-chip temperature measurement application

Cited by 5 publications

References 7 publications

Enhancement of Commercial Grade VLSI Chips into Industrial Grade using a Novel Thermal Monitoring and Control Technique

Enhancement of Commercial Grade VLSI Chips into Industrial Grade using a Novel Thermal Monitoring and Control Technique

FPGA-Based Time-to-Digital Converter for Pulsed Laser Ranging

VITI: A Tiny Self-Calibrating Sensor for Power-Variation Measurement in FPGAs

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