Data rate bit-by-bit variable digital-to-analog conversion device and configuration method

A technology of digital-to-analog conversion and data rate, applied in the direction of digital-to-analog converters, etc., can solve problems such as high cost, complex hardware circuit, and inability to realize self-adaptive configuration, and achieve the goal of reducing storage space, simplifying design, and simplifying hardware circuit design Effect
CN112242848AActive Publication Date: 2021-01-19NO 54 INST OF CHINA ELECTRONICS SCI & TECH GRP
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
NO 54 INST OF CHINA ELECTRONICS SCI & TECH GRP
Publication Date
2021-01-19

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Abstract

The invention discloses a data rate bit-by-bit variable digital-to-analog conversion device and a configuration method, and belongs to the technical field of digital-to-analog conversion. The device comprises a configuration unit, a digital-to-analog conversion unit, a clock unit, a power supply unit, and a table lookup unit, a storage unit, an operation unit and a parameter configuration unit which are realized in a software module form. The configuration unit is used for configuring the data rate clock of the analog-to-digital conversion unit to be rapidly switched within the stepping rangeof 1Hz and the range of 1MHz-125MHz. The digital-to-analog conversion unit outputs a required data rate clock according to the control instruction. The clock unit provides 8MHz and 50MHz reference clock sources for the configuration unit and the digital-to-analog conversion unit respectively. The power supply unit supplies required direct-current power to the configuration unit, the digital-to-analog conversion unit and the clock unit. The device has the advantages of being simple in hardware circuit, low in cost, simple in configuration algorithm structure, small in occupied resource and capable of achieving self-adaptive switching.
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Description

technical field

[0001] The invention relates to the technical field of digital-to-analog conversion, in particular to a digital-to-analog conversion device and a configuration method with variable data rate bit by bit. Background technique

[0002] Faced with the situation of diversified functions, integrated functions, and miniaturized equipment in the field of mobile communication and satellite communication, the modem needs to integrate more functions under the premise of miniaturized equipment, especially a communication system that covers a wider range of data rates. The AD9361 RF Agile Transceiver encapsulates its signal chain in a software-configurable IC, and has been widely used in the communication field due to its configurability, low power consumption, and small size. At present, a bit-by-bit variable digital-to-analog conversion device based on a dedicated digital-to-analog conversion chip requires an additional clock management chip to provide a clock, which is...

Claims

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