CN202471973U

CN202471973U - GPS (global positioning system) navigation SoC (system on chip)

Info

Publication number: CN202471973U
Application number: CN2012200656924U
Authority: CN
Inventors: 华东
Original assignee: Wenzhou Polytechnic
Current assignee: Wenzhou Polytechnic
Priority date: 2012-02-27
Filing date: 2012-02-27
Publication date: 2012-10-03
Anticipated expiration: 2022-02-27

Abstract

A GPS (global positioning system) navigation SoC (system on chip) comprises a GPS base band processing module and an interface module which are integrated on the chip. A CPU (central processing unit), an ROM (read only memory), an SRAM (static random access memory), a flash, an RTC (real time clock), a PLL (phase locking loop) module and a PM (power management) module are further integrated on the chip to form a high-integration SoC structure. By the aid of the high-integration SoC structure, the chip is provided with a complete system on chip, is perfect in performance, small in size, high in integration, fine in specialization, low in power consumption and cheap in product price, and can be effectively applied and popularized to the field of consumables such as vehicular navigation and mobile phones and the professional field of voyage, aviation, meteorology, communication and the like.

Description

Gps satellite location navigation SoC chip

Technical field: the utility model relates to a kind of chip that uses gps satellite location navigation signal that receives.

Background technology: gps satellite location navigation chip product mainly contains two big types, and one type is the GPS module product, comprises RF, GPS engine, ROM etc.; This series products is mainly used in consumer goods markets such as vehicle mounted guidance, mobile phone; Be characterized in that volume is little, be easy to integrated, highly sensitive; But the price of its individual module is higher, and professional application is not strong.Another kind of is the GPS chip product, and this chip has comprised modules such as catching, follow the tracks of, be synchronous, possesses perfect Base-Band Processing function, can work but on using, need on peripheral circuit, to increase peripheral components such as RF circuit, DDR, Flash, CPU.Such chip is mainly used in fields such as professional navigation, aviation, meteorology, communication, is characterized in providing according to different application different solutions, in professional domains such as time service, location, navigation more excellent performance is arranged; But its sales volume is little; Cost an arm and a leg, volume is big, is unfavorable for industrialization.

Summary of the invention: to the deficiency of prior art, the utility model provides a kind of integrated level high, the gps satellite location navigation SoC chip that professional performance is good.

The utility model comprises GPS BaseBand baseband processing module and the INTERFACE interface module that is integrated on the chip; Also be integrated with CPU, ROM, SRAM, Flash, RTC clock and PLL phase-locked loop module and PM power management module on the chip, constitute the high integration SoC of system structure.

The chip of the utility model adopts the high integration SoC of system structure, has complete SOC(system on a chip), perfect performance; Volume is little; Integrated level is high, and professional good, power consumption is few; Product price is low, all can applications well promote in consumer product area such as vehicle mounted guidance, mobile phone and navigation, aviation, meteorology, professional domain such as communicate by letter.

Further specify the utility model below in conjunction with accompanying drawing and embodiment.

Description of drawings: Fig. 1 is the system principle diagram of embodiment.

Embodiment: as shown in the figure; GPS BaseBand baseband processing module and INTERFACE interface module are integrated on the chip; Also be integrated with CPU, ROM, SRAM, Flash, RTC clock and PLL phase-locked loop module and PM power management module on the chip, constitute the high integration SoC of system structure.General CPU can adopt RISC CPU, can effectively promote the CPU treatment effeciency.The INTERFACE interface module can contain UART, SPI, GPIO, I ²Multiple interfaces such as C and USB conveniently is connected with the data transmission of external system.

When the SoC chip operation, GPS BaseBand baseband processing module is used for base band signal process, and the signal of input catches, follows the tracks of, synchronously, exports navigation message and carrier information, doppler information then.CPU partly controls Base-Band Processing and navigation message is resolved, formation time and positional information.ROM is used for application storing and driver, and SRAM is used for the storage of instruction repertorie and data program, and Flash can storing subscriber information, is used to improve reacquisition and warm start time.In addition, the RTC clock can provide the stable clock signal, and then to the clock phase Collaborative Control of whole SOC chip, the PM power management module carries out the power management of different conditions to the PLL phase-locked loop module to chip.

Claims

1. gps satellite location navigation SoC chip; Comprise the GPS BaseBand baseband processing module and the INTERFACE interface module that are integrated on the chip; It is characterized by: also be integrated with CPU, ROM, SRAM, Flash, RTC clock and PLL phase-locked loop module and PM power management module on the chip, constitute the high integration SoC of system structure.

2. gps satellite location navigation SoC chip according to claim 1 is characterized by: CPU adopts RISC CPU.

3. gps satellite location navigation SoC chip according to claim 1 and 2, it is characterized by: the INTERFACE interface module contains UART, SPI, GPIO, I ²C and USB interface.