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  2. Elliptic filter - Wikipedia

    en.wikipedia.org/wiki/Elliptic_filter

    Design an Elliptic filter with a pass band ripple of 1 dB from 0 to 1 rad/sec and a stop band ripple of 40 dB from at least 1.25 rad/sec to . Applying the calculations above for the value for n prior to applying the ceil() function, n is found to be 4.83721900 rounded up to the next integer, 5, by applying the ceil() function, which means a 5 ...

  3. File:Asynchronous Counter.pdf - Wikipedia

    en.wikipedia.org/wiki/File:Asynchronous_Counter.pdf

    This file was moved to Wikimedia Commons from en.wikibooks using a bot script. All source information is still present. It requires review.Additionally, there may be errors in any or all of the information fields; information on this file should not be considered reliable and the file should not be used until it has been reviewed and any needed corrections have been made.

  4. Filter (signal processing) - Wikipedia

    en.wikipedia.org/wiki/Filter_(signal_processing)

    In signal processing, a filter is a device or process that removes some unwanted components or features from a signal.Filtering is a class of signal processing, the defining feature of filters being the complete or partial suppression of some aspect of the signal.

  5. Counter (digital) - Wikipedia

    en.wikipedia.org/wiki/Counter_(digital)

    An asynchronous (ripple) counter is a "chain" of toggle (T) flip-flops in which the least-significant flip-flop (bit 0) is clocked by an external signal (the counter input clock), and all other flip-flops are clocked by the output of the nearest, less significant flip-flop (e.g., bit 0 clocks the bit 1 flip-flop, bit 1 clocks the bit 2 flip ...

  6. Chebyshev filter - Wikipedia

    en.wikipedia.org/wiki/Chebyshev_filter

    The order of a Chebyshev filter is equal to the number of reactive components (for example, inductors) needed to realize the filter using analog electronics. An even steeper roll-off can be obtained if ripple is allowed in the stopband, by allowing zeros on the -axis in the complex plane. While this produces near-infinite suppression at and ...

  7. Frequency divider - Wikipedia

    en.wikipedia.org/wiki/Frequency_divider

    For power-of-2 integer division, a simple binary counter can be used, clocked by the input signal. The least-significant output bit alternates at 1/2 the rate of the input clock, the next bit at 1/4 the rate, the third bit at 1/8 the rate, etc. An arrangement of flipflops is a classic method for integer-n division. Such division is frequency ...

  8. Digital filter - Wikipedia

    en.wikipedia.org/wiki/Digital_filter

    A general finite impulse response filter with n stages, each with an independent delay, d i, and amplification gain, a i.. In signal processing, a digital filter is a system that performs mathematical operations on a sampled, discrete-time signal to reduce or enhance certain aspects of that signal.

  9. Finite impulse response - Wikipedia

    en.wikipedia.org/wiki/Finite_impulse_response

    A direct form discrete-time FIR filter of order N.The top part is an N-stage delay line with N + 1 taps. Each unit delay is a z −1 operator in Z-transform notation. A lattice-form discrete-time FIR filter of order N.