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TLC548CD датащи(PDF) 9 Page - Texas Instruments |
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TLC548CD датащи(HTML) 9 Page - Texas Instruments |
9 / 20 page TLC548C, TLC548I, TLC549C, TLC549I 8-BIT ANALOG-TO-DIGITAL CONVERTERS WITH SERIAL CONTROL SLAS067C – NOVEMBER 1983 – REVISED SEPTEMBER 1996 9 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 PRINCIPLES OF OPERATION For certain applications, such as strobing applications, it is necessary to start conversion at a specific point in time. This device accommodates these applications. Although the on-chip sample-and-hold function begins sampling upon the high-to-low transition of the fourth I/O CLOCK cycle, the hold function does not begin until the high-to-low transition of the eighth I/O CLOCK cycle, which should occur at the moment when the analog signal must be converted. The TLC548 and TLC549 continue sampling the analog input until the high-to-low transition of the eighth I/O CLOCK pulse. The control circuitry or software then immediately lowers I/O CLOCK and starts the holding function to hold the analog signal at the desired point in time and starts the conversion. |
Аналогичный номер детали - TLC548CD |
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Аналогичное описание - TLC548CD |
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