Series Polyphase Phase Accumulator
A phase accumulator and phase adder technology, applied in the direction of electrical components, automatic power control, etc., can solve the problems of cumbersome process, large hardware resources, and a large amount of hardware resource overhead, so as to reduce production costs, reduce resource occupancy, Solve the effect of consuming too much hardware resources
Active Publication Date: 2017-11-17
HUAZHONG NORMAL UNIV
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Problems solved by technology
However, the phase-splitting storage waveform synthesis technology has application defects: it involves odd multiples of frequency control word processing, the process is cumbersome and will bring a lot of hardware resource overhead
The invention mainly solves the problem that the traditional phase-separation storage technology consumes too much hardware resources
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[0025] In order to make the object, technical solution and advantages of the present invention more clear, the present invention will be further described in detail below in conjunction with the examples. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
[0026] Such as figure 1 as shown, figure 1 Taking four phases as an example, a serial multi-phase phase accumulator described in the present invention. For simplicity, FTW is used instead of the frequency control word. figure 1 Including 4 times FTW, FTW, phase 1 output phase word, phase 2 output phase word, phase 3 output phase word, phase 4 output phase word, 1 4-level D flip-flop array, 1 3-level D flip-flop array, 1 2-stage D flip-flop array, 1 1-stage D flip-flop array, phase adders 1, 2, 3, 1 phase accumulator, 1-stage D flip-flop array 1, 2, 1 pipelined D flip-flop array . figure 1 In K=32, M=16, it means that t...
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The invention discloses a serial multiphase phase accumulator, which comprises 1 phase accumulator, N-1 phase adders, N D flip-flop arrays, and N-2 1-stage D flip-flops array, a pipelined D flip-flop array; the first phase adder to the N-1th phase adder are connected in series with the phase accumulator in sequence; the phase accumulator and the N-1 phase adders are respectively connected to N D flip-flops A corresponding D flip-flop array in the device array; The pipeline D flip-flop array is used to receive the frequency control word; The N-2 1-level D flip-flop arrays are connected in series with the pipeline D flip-flop arrays; the pipeline D The output of the flip-flop array is connected to the first phase adder; the outputs of the N-2 1-level D flip-flop arrays are connected to the second phase adder in turn and connected to the N-1th phase adder correspondingly. The invention changes the design of the traditional phase-separated storage phase accumulator, and can effectively reduce the resource occupation rate.
Description
technical field [0001] The invention relates to the technical field of integrated circuit design, in particular to a serial multiphase phase accumulator. Background technique [0002] The phase-separated storage waveform synthesis technology is a technology proposed in recent years to increase the sampling rate. It mainly solves the problem of device technology limiting the working speed of the phase accumulator and waveform memory, and has a good application prospect. However, the phase-splitting storage waveform synthesis technology has application defects: it involves odd multiple frequency control word processing, the process is cumbersome and will bring a lot of hardware resource overhead. The invention mainly solves the problem that the traditional phase-separation storage technology consumes too much hardware resources. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a serial multi-phase phase accumulator...
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IPC IPC(8): H03L7/24
Inventor黄光明程振洪严建桥
OwnerHUAZHONG NORMAL UNIV