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prescaler

   Also found in: Wikipedia 0.07 sec.
prescaler [′prē‚skāl·ər]
(electronics)
A scaler that extends the upper frequency limit of a counter by dividing the input frequency by a precise amount, generally 10 or 100.


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It has a wide range of peripheral functions, including high-speed DMA, multi-channel SIO, programmable timer, PLL, prescaler along with additional functionality.
It consists of a low-noise digital PFD (phase frequency detector), a precision charge pump, a programmable reference divider, programmable A (6-bit) and B (13-bit) counters, and a dual-modulus prescaler (P/P + 1).
In testing we now solve 90 percent of customer-supplied large and complex circuits, such as direct-conversion receivers, prescalers and complex LO generation networks, when in the past we solved roughly 50 percent of these types of circuits.
 
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