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Phase-locked loop circuit, transmitter and wireless transceiver system

A phase-locked loop and transmitter technology, applied in the electrical field, can solve problems such as increased system power consumption and chip area, and achieve the effect of improving power utilization and saving power consumption

Active Publication Date: 2021-11-23
上海橙群微电子有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, each of the above LDOs results in increased system power consumption and chip area

Method used

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  • Phase-locked loop circuit, transmitter and wireless transceiver system
  • Phase-locked loop circuit, transmitter and wireless transceiver system
  • Phase-locked loop circuit, transmitter and wireless transceiver system

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Embodiment Construction

[0025] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. In the case of no conflict, the following embodiments and technical features thereof can be combined with each other. 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] see figure 1 , is a schematic diagram of the power supply architecture of the wireless transceiver system of the present application. The wireless transceiver system 1 includes a transmitter 10 for transmitting wireless signals, a receiver 20 for receiving wireless signals, a linear regulator (LDO) 30 , a voltage converter 40 and a battery 50 . The battery 50 is used to provide a battery voltage VBAT, and the voltage converter 40 is used to convert the battery voltage VBAT ...

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Abstract

The application discloses a wireless transceiver system, including a transmitter, a receiver, a voltage converter, a linear voltage regulator and a battery. The battery is used to provide a battery voltage, and the voltage converter is used to convert the battery voltage into an operating voltage. The transmitter includes a voltage-controlled oscillator, the operating voltage directly supplies power to circuits other than the voltage-controlled oscillator of the receiver and the transmitter, and the linear voltage regulator is used to receive the operating voltage and output to the voltage-controlled oscillator after filtering the ripple. The application also discloses a transmitter and a phase-locked loop circuit. The application can improve battery utilization rate and save power consumption.

Description

technical field [0001] This application relates to the field of electricity, in particular, to a phase-locked loop circuit, a transmitter and a wireless transceiver system. Background technique [0002] With the advancement of science and technology and the improvement of living standards, portable electronic products are widely used in people's daily life. Generally, a portable electronic product needs a battery to provide power when it is working. A general battery can provide an output voltage of 3.0V or 1.5V. In integrated circuits, such as transmitters using wireless transmission, 1.2V or less is mainly used as an operating voltage. Therefore, it is necessary to design a voltage conversion circuit to convert the voltage of the battery into the required working voltage of the integrated circuit. A common implementation is to use a switch-mode voltage converter (DC-DC Converter), which can convert the battery voltage within a certain range into the working voltage of t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H03L7/08H03L7/093H03L7/099H03L7/10H03L7/18
CPCH03L7/0802H03L7/093H03L7/0992H03L7/10H03L7/18
Inventor 罗素·莫恩刘瑞峰顾永如汤钧吴群喻士楷胡祥
Owner 上海橙群微电子有限公司