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Signal generator with higher waveform data reading speed

A technology of signal generator and waveform data, applied in the direction of digital function generator, etc., can solve the problem of slow data reading speed and achieve the effect of improving data reading speed

Active Publication Date: 2015-07-15
RIGOL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0016] In order to solve the problem that the data reading speed of the random access memory is relatively slow in the signal generator of the prior art, the present invention provides a signal generator with a faster data reading speed of the random access memory

Method used

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  • Signal generator with higher waveform data reading speed
  • Signal generator with higher waveform data reading speed
  • Signal generator with higher waveform data reading speed

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Embodiment Construction

[0038] A preferred embodiment of the signal generator of the present invention is introduced below.

[0039] Please refer to Figure 4 , the signal generator 2 of a preferred embodiment of the present invention includes a control system 20 and a channel unit 28 connected to each other. The control system 20 includes a control unit 21 , a nonvolatile memory 22 , an interface unit 23 , an input unit 24 and a clock unit 211 . The channel unit 28 includes a waveform processing unit 25 , a digital-to-analog conversion unit 26 and four random access memories 27 . Nonvolatile memory 22, input unit 24, interface unit 23 are connected to control unit 21 respectively, interface unit 23 and clock unit 211 are connected to waveform processing unit 25 respectively, digital-to-analog conversion unit 26 and RAM 27 are connected to waveform processing unit Unit 25.

[0040] Control unit 21 is made of DSP, nonvolatile memory 22 is made of flash memory (FLASH), input unit 24 is made of keybo...

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Abstract

The invention discloses a signal generator, which comprises a control system, a waveform processing unit 25 connected with the control system, a D / A (digital / analogue) conversion unit connected with the waveform processing unit, and a plurality of random access memories 27a-27d. A public address line 271 of the plurality of random access memories 27a-27d is connected with the waveform processing unit 25, and each of the random access memories 27a-27d is independently connected with the waveform processing unit 25 through corresponding data lines 262a-262d. The signal generator provided by the invention has higher speed in reading and writing the data of the plurality of random access memories 27a-27d.

Description

technical field [0001] The invention relates to a signal generator, in particular to a direct digital frequency synthesis (DDS, Direct Digital Frequency Synthesis) signal generator with high waveform data reading speed. Background technique [0002] As a common excitation source, signal generators have been widely used in scientific research and industrial engineering. A typical application of the signal generator is to simulate various signals in the laboratory, as the input stimulus of the circuit and system under test, and provide a simulation environment for testing various performance indicators of the circuit and system under test. Signal generators in the traditional sense are divided into four categories according to their signal waveforms: (1) sinusoidal signal generators: mainly used to measure frequency characteristics, nonlinear distortion, gain and sensitivity of circuits and systems; (2) function ( Waveform) signal generator: generate some specific periodic ti...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F1/03
Inventor 王悦王铁军李维森
Owner RIGOL