Single-chip numerical control attenuator chip driven by single voltage and positive voltage

A digitally controlled attenuator, single-voltage technology, applied in frequency-independent attenuators, multi-terminal pair networks, etc., can solve problems such as poor practicability, low integration, and complex control.

Pending Publication Date: 2020-02-28
XIAN BORUI JIXIN ELECTRONICS TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, it is very necessary to provide an attenuator chip with high integration, strong versatility, and single-voltage positive-volta

Method used

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  • Single-chip numerical control attenuator chip driven by single voltage and positive voltage
  • Single-chip numerical control attenuator chip driven by single voltage and positive voltage
  • Single-chip numerical control attenuator chip driven by single voltage and positive voltage

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Embodiment Construction

[0027] In order to enable those skilled in the art to better understand the solution of the application, the technical solution in the embodiment of the application will be clearly described below in conjunction with the drawings in the embodiment of the application. Obviously, the described embodiment is the All the way to the embodiment, but not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the scope of protection of this application.

[0028] The terms "comprising" and any variations thereof in the specification and claims of the present application and the above drawings are intended to cover non-exclusive inclusion. For example, a process, method or system, product or device comprising a series of steps or units is not limited to the listed steps or units, but optionally also includes steps or units not listed, or optionally further inc...

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Abstract

The invention provides a single-chip numerical control attenuator chip driven by a single voltage and a positive voltage. A chip circuit comprises an attenuation module, a power supply protection module and a level conversion module, a power supply voltage is inputted into the input end of the power supply protection module, and the output end of the power supply protection module is connected with the input end of the attenuation module and the power supply input end of the level conversion module. A control voltage is inputted into the control input end of the level conversion module, and the control output end of the level conversion module is connected with the control input end of the attenuation module. A radio frequency signal is inputted into the attenuation module and is outputtedafter attenuation control. Compared with the traditional attenuator design, the attenuator provided by the invention realizes a positive voltage controlled attenuator by changing the structure of a traditional attenuation unit, at the same time, the single chip is integrated with a driver, so that the control ports are reduced, the attenuator controlled by the single voltage is realized, the chipcan be compatible with TTL/CMOS signals, and the integration degree of the single chip is improved.

Description

technical field [0001] The application belongs to the technical field of numerically controlled attenuators, and in particular relates to a single-chip numerically controlled attenuator chip driven by a single positive voltage. Background technique [0002] Numerical control attenuator is an important microwave control circuit, which is widely used in electronic equipment such as broadband communication, electronic countermeasure system, microwave radio communication, radar and space communication. It mainly plays the function of gain setting and control in the circuit. Microwave systems have had a huge impact. Therefore, it is of great application value and practical significance to study single-chip digitally controlled attenuator chips driven by single-voltage positive voltage. [0003] The switch control device of the attenuator mostly adopts GaAs pseudo-high electron mobility transistor (pHEMT) device, which has the characteristics of smaller conduction insertion loss,...

Claims

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Application Information

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IPC IPC(8): H03H11/24
CPCH03H11/24
Inventor 杜琳
Owner XIAN BORUI JIXIN ELECTRONICS TECH
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