TDC GP21 PDF

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TDC-GP21 1K ams Data Acquisition ADCs/DACs – Specialized TDC-GP21 1K VQFN32 LF T&R datasheet, inventory, & pricing. The measurement is fairly automated by the TDC-GP The microprocessor just sends a start command. The TDC then fires the transducers and measures the. The TDC-GP21 is a Universal 2-Channel Time to Digital Converter.

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Ultrasonic heat meters Ultrasonic gas meters Ultrasonic flow indicators Laser rangefinders Magnetostrictive sensors. This is done by measuring one and two periods of a reference oscillator. On the base of the ATMD-System we also develop complete solutions and additional modules to fit your application.

The figure shows the principle of operation. Resolutions in the range of 14 ps can be achieved by a simple set-up of the measuring core and the use of a state-of-the art CMOS process.

This type of TDC uses the absolute propagation time of signals through simple logical elements for fine quantisation of time intervals. Ideally this measurement and the following calculation is done by the TDC itself.

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The propagation delay itself depends on temperature and supply voltage. Clever circuit set-ups, redundant elements and special layout methods on the chip enable the exact reconstruction of the number of basic time intervals.

TDC-GP21 Applications

TDC-GP21 is a 2-channel TDC with additional analog elements like extended fire-pulse generator, zero-cross detection and analog switches for simplifying the use in ultrasonic flow meter applications. The TDC-GPF01 firmware does the linearization and temperature compensation based on spool piece specific calibration data and completes the system-on-chip approach.

The addition first-hit detection makes TDC-GP22 suitable for high dynamic applications as ultrasonic water meters. Evaluation software package for GPX2 incl. The high resolution is all the more impressive as this TDC is realized tc a radiation hard process. This product suits for the following applications: For more information, please email sales gpta.

TDC-GP21 – Time to Digital Converter with Integrated Analog Frontend

The latest software can be downloaded here: General Description TDC-GP21 is a 2-channel TDC with additional analog elements like extended fire-pulse generator, zero-cross detection and analog switches for simplifying the use in ultrasonic flow meter applications. Therefore the measured value must be calibrated. For more information, please contact RoentDek. In other words, tdf determines how many inverter cycles the measured time interval consists of.

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It drastically simplifies the design of ultrasonic heat and water meters and is the necessary step for compact energy-saving ultrasonic water meters.

The resolution strictly depends upon the basic delay time in the chip. The wealth of experience acam has gathered assures the ability to integrate all necessary funtions on a single circuit and so to provide a system-on-chip solution.