Two-step type time-to-digital converter based on time amplifier
A technology of time amplifier and time digital, which is applied in the direction of electrical unknown time interval measurement, devices and instruments for measuring time interval, etc., can solve the problems of circuit complexity and performance loss, and achieve the effect of reducing complexity and power consumption
Active Publication Date: 2018-09-18
INST OF MICROELECTRONICS CHINESE ACAD OF SCI
View PDF6 Cites 8 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
However, the extensive use of time amplifiers will cause a great loss in performance both in terms of circuit complexity and power consumption.
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0036] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be described in further detail below in conjunction with specific embodiments and with reference to the accompanying drawings.
[0037] Certain embodiments of the invention will be described more fully hereinafter with reference to the accompanying drawings, in which some, but not all embodiments are shown. Indeed, various embodiments of the invention may be embodied in many different forms and should not be construed as limited to these set forth embodiments; rather, these embodiments are provided so that this invention will satisfy applicable legal requirements.
[0038]In a first exemplary embodiment of the present invention, a two-step time-to-digital converter based on a time amplifier is provided. Figure 5 It is a schematic diagram of a circuit principle of a two-step TDC based on a time amplifier according to the first embodiment of the pre...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention provides a two-step type time-to-digital converter based on a time amplifier. The converter comprises a first-stage Coarse TDC module, a delay unit, a multiplexer Mux, the time amplifierand a second-stage Fine TDC module, wherein the first-stage coarse TDC module performs coarse quantization on two paths of input signals including a start signal and a stop signal; the delay unit isused for delaying a start [i] signal and the stop signal, and a time error t between an Mux output signal of the multiplexer and an actual signal is eliminated; the output end of the delay unit is connected with the multiplexer Mux, and the output end of the multiplexer MUX is connected to the time amplifier; the output end of the time amplifier is connected to the second-stage Fine TDC module andcarries out fine quantization on the signals passing through the time amplifier. According to the converter, the complexity of a circuit is greatly reduced, and the power consumption is reduced.
Description
technical field [0001] The invention belongs to the technical field of all-digital phase-locked loops for frequency synthesis, in particular to a two-step time-to-digital converter based on a time amplifier. Background technique [0002] The function to be completed by the TDC (time-to-digital converter) is to use a specific time precision to quantify the time interval of the rising edges of the two input signals. like figure 1 As shown, the time interval T of the rising edge of the two input signals is quantized. The time interval between the two vertical dotted lines is TLSB, which represents the quantization accuracy and is also called resolution. The smaller the TLSB, the higher the resolution. In the design of TDC, resolution is the most important design index, and many new structures are designed for the purpose of improving resolution. [0003] The basic method of realizing TDC is to use the gate delay method to quantify the time interval, and the quantization accur...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Applications(China)
IPC IPC(8): G04F10/00
CPCG04F10/00
Inventor 盖林冲王海永陈岚
Owner INST OF MICROELECTRONICS CHINESE ACAD OF SCI