CN105510937A - Multi-mode multi-frequency baseband chip pin control circuit and control method - Google Patents
Multi-mode multi-frequency baseband chip pin control circuit and control method Download PDFInfo
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- CN105510937A CN105510937A CN201510855697.5A CN201510855697A CN105510937A CN 105510937 A CN105510937 A CN 105510937A CN 201510855697 A CN201510855697 A CN 201510855697A CN 105510937 A CN105510937 A CN 105510937A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
- G01S19/01—Satellite radio beacon positioning systems transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
- G01S19/13—Receivers
- G01S19/32—Multimode operation in a single same satellite system, e.g. GPS L1/L2
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- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Circuits Of Receivers In General (AREA)
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
Abstract
The invention relates to a multi-mode multi-frequency baseband chip pin control circuit. The pin control circuit is arranged between a radio frequency chip and a baseband signal processing module; sampling clock and multi-mode multi frequency signal sampling data which are outputted by the radio frequency chip are sent to the pin control circuit; and the pin control circuit performs sampling clock edge selection, pin position selection or multiplexing function selection control on input data according to selection control signals outputted by the baseband signal processing module, and sends processed data to the baseband signal processing module for processing the data. The implementation cost of the multi-mode multi-frequency baseband chip pin control circuit is low; altogether N bits of baseband signal are inputted; only 2*N triggers, (N+1) alternative data selectors, and N one-out-N data selectors are required; as for intermediate-frequency signals outputted by the radio frequency chip, a sampling clock can be selected to carry out rising edge or falling edge sampling, and therefore, the usability of the baseband chip and the compatibility of the radio frequency chip can be greatly improved, and the number of pins in chip DIE encapsulation can be decreased, and functions are not affected basically.
Description
Technical field
The present invention relates to satellite navigation baseband chip design field, be specifically related to a kind of multimode multi-frequency baseband chip pin control circuit and control method.
Background technology
Along with GNSS (GlobalNavigationSatelliteSystem, GLONASS (Global Navigation Satellite System)) fast development of technology and improving constantly of application demand, the multimode GNSS system utilizing multisystem signal to carry out co-located shows great advantage.Multimode multi-frequency receiver can receive the satellite-signal of multiple frequency simultaneously, utilizes multisystem combined location technology, and positioning precision and reliability are got a greater increase, and becomes rapidly the investigation and application focus of navigation field.
In the satellite navigation receiver that baseband chip is separated with radio frequency chip, radio frequency chip is responsible for radio-frequency receiving-transmitting, frequency synthesis, power amplification and analog to digital conversion, exports intermediate frequency baseband signal.Baseband chip is responsible for signal transacting and protocol processes.During baseband chip design, intermediate frequency baseband signal through the pin input of chip PIN pin and chip DIE (a piece of the pending encapsulation cut out from wafer has the bare chip of complete function) to carry out subsequent treatment.
When using baseband chip and radio frequency chip to carry out plate level or Development of Module, the if signal sampling clock that the radio frequency chip of different manufacturers exports is different from sampled data timing requirements, if PCB (PrintedCircuitBoard in board level system exploitation in addition, printed circuit board) the long signal lag that makes of signal lead is larger, cause the use sampling clock rising edge that needs had to be sampled, what have needs with the sampling of sampling clock negative edge.Sampling by mistake may be caused to cause corrupt data according to the sampling of fixed clock edge.
Current unifrequent intermediate frequency baseband signal data bit wide is 2 bit ~ 5 bits, to the multimode multi-frequency receiver baseband chip of a common M frequency signal, for supporting optimal performance and ensureing that radio frequency chip is compatible, the baseband signal data of common 5*M bit bit wide is usually needed to input.As typical multimode multi-frequency baseband chip support the input of 3 frequency intermediate-freuqncy signals time, need signal input (also needing to provide sampling clock) of 16 bits.But chip PIN pin resource is very valuable, especially higher to dimensional requirement receiver module wishes that baseband chip size is as far as possible little, and the PIN pin of corresponding chip package is the least possible.If a kind of typical area is 5mm*5mm, the baseband chip PIN pin totally 44 supporting three frequency signals, and the PIN pin distributing to baseband signal input may only have about 10.If select the pin package of segment chip DIE at the PIN pin of chip fixing, then again limit chip processing capacity or performance, even some function or performance cannot realize.Therefore we need a kind of pin control method taking the least possible PIN pin not influential system function or performance again.
Summary of the invention
Technical matters to be solved by this invention be to provide solve baseband chip intermediate-freuqncy signal can be less and affect multimode multi-frequency baseband chip pin control circuit and the control method of the problem of multimode multi-frequency systemic-function or performance with PIN pin.
The technical scheme that the present invention solves the problems of the technologies described above is as follows:
A kind of multimode multi-frequency baseband chip pin control circuit, comprising:
N number of rising edge flip-flops, for carrying out rising edge sampling with sampling clock RF_CLK to common N bit signal RF_DIN (0) ~ RF_DIN (N-1) that M channel inputs, obtain signal din (0) _ pos ~ din (N-1) _ pos;
N number of negative edge trigger, for carrying out negative edge sampling with N bit radiofrequency signal RF_DIN (the 0) ~ RF_DIN (N-1) of sampling clock RF_CLK to input, obtain signal din (0) _ neg ~ din (N-1) _ neg;
Also comprise N number of alternative data selector, signal din (0) _ pos and din (0) _ neg inputs two data input pins of an alternative data selector respectively, corresponding sampling clock edge selects control signal edge (0) _ sel to input the selecting side of alternative data selector, for carrying out alternative selection to data, the signal obtained after selection is a (0);
Signal din (1) _ pos ~ din (N-1) _ pos inputs different alternative data selector data input pins respectively, signal din (1) _ neg ~ din (N-1) _ neg inputs another data input pin of corresponding alternative data selector respectively, sampling clock edge selects control signal edge (1) _ sel ~ edge (N-1) _ sel to input the selecting side of corresponding alternative data selector respectively, carry out alternative selection to data, the signal obtained after selection is a (1) ~ a (N-1);
Also comprise N number of N and select a data selector, described all N select the signal of N number of data input pin input of a data selector to be a (0) ~ a (N-1), selecting side input signal is respectively pin (0) _ sel ~ pin (N-1) _ sel, the signal exported is respectively dout (0) ~ dout (N-1), the bit wide of corresponding each channel input signal again, being divided into M channel to export, is ch (0) data ~ ch (M-1) data.
The invention has the beneficial effects as follows:
(1) intermediate-freuqncy signal that radio frequency chip of the present invention (or radio frequency chip DIE) exports can select sampling clock rising edge or negative edge sampling, and the clock of each signal bit selects all independent control along sampling.So can realize the compatibility of multiple radio frequency chip (or radio frequency chip DIE).
(2) each signal bit that pin control circuit exports can select any one IF input signals bit, baseband chip can be reduced and finally encapsulate shared pin (PIN), also chip DIE PIN Pin locations design efforts would when chip package is reduced, simultaneously both can the radiofrequency signal of compatible many bits bit wide, baseband chip chip pin position assignment error when multi-chip DIE encapsulation or the application of single baseband chip also can be avoided to cause inoperable problem.
Therefore, the pin control circuit that the present invention proposes makes the ease for use of baseband chip, radio frequency chip compatibility is greatly improved, and can reduce PIN pin number when chip DIE encapsulates, and function is substantially unaffected simultaneously.
On the basis of technique scheme, the present invention can also do following improvement.
Further, the common N bit signal of described M channel input is radiofrequency signal or the playback of data for gathering in advance.Further, the present invention also comprises 1 alternative data selector, a data input pin of described alternative data selector connects the data output end that any one N selects a data selector, another data input pin input logic level " 1 ", control end input data effectively indicate control signal dvld_sel, export intermediate-freuqncy signal data effective index signal dout_vld;
When external radiofrequency signal, control signal dvld_sel is 1, and output signal dout_vld is logic level " 1 ", represents that radiofrequency signal data are effective all the time; When external playback of data, control signal dvld_sel is 0, and output signal dout_vld is the playback of data signal of alternative data selector data input pin input, represents that playback of data is effective.The beneficial effect of above-mentioned further scheme is adopted to be: pin control circuit is that data effectively indicate to wherein any one signal bit reusable, when using the data gathered in advance to carry out playback to verify baseband chip function, precisely controls playback of data.But so occupying volume external pin can not realize data readback authentication function.
Further, described N is natural number, and is not more than 20.
Further, described M is natural number, and is not more than 5.A kind of multimode multi-frequency baseband chip pin control method, comprises the following steps:
(1) with sampling clock RF_CLK, rising edge sampling is carried out to common N bit signal RF_DIN (0) ~ RF_DIN (14) that M channel inputs, obtain signal din (0) _ pos ~ din (N-1) _ pos;
With sampling clock RF_CLK to M channel input common N bit signal RF_DIN (0) ~ RF_DIN (14) carry out negative edge sampling, obtain signal din (0) _ neg ~ din (N-1) _ neg;
(2) sampling clock edge is utilized to select control signal edge (0) _ sel ~ edge (N-1) _ sel to carry out alternative to signal din (0) _ pos ~ din (N-1) _ pos and signal din (0) _ neg ~ din (N-1) _ neg respectively and obtain signal a (1) ~ a (N-1);
(3) pin positions is utilized to select signal pin (0) _ sel ~ pin (N-1) _ sel to select signal a (1) ~ a (N-1) respectively, select through N time, obtain output signal dout (0) ~ dout (N-1), the bit wide of corresponding each input radio frequency chip input signal again, being divided into M channel to export, is ch (0) data ~ ch (M-1) data.
Further, the common N bit signal of described M channel input is radiofrequency signal or the playback of data for gathering in advance.
Further, the present invention also comprises and utilizes data effectively to indicate control signal dvld_sel to select any one in output signal dout (0) ~ dout (N-1) and logic level " 1 ", exports the step of intermediate-freuqncy signal data effective index signal dout_vld;
When external radiofrequency signal, control signal dvld_sel is 1, and output signal dout_vld is logic level " 1 ", represents that radiofrequency signal is effective all the time; When external playback of data, control signal dvld_sel is 0, and output signal dout_vld is the playback of data signal carrying out alternative, represents that playback of data is effective.
Further, described N is natural number, and is not more than 20.
Further, described M is natural number, and is not more than 5.
A kind of base band signal processing chip, comprises above-mentioned multimode multi-frequency baseband chip pin control circuit and baseband processing module, and described multimode multi-frequency baseband chip pin control circuit and baseband processing module are electrically connected,
Described baseband processing module sends sampling clock edge to multimode multi-frequency baseband chip and selects control signal edge (0) _ sel ~ edge (N-1) _ sel and pin positions to select signal pin (0) _ sel ~ pin (N-1) _ sel;
Described multimode multi-frequency baseband chip pin control circuit is to the channel of the M after baseband processing module transmission processing N bit signal ch (0) data ~ ch (M-1) data altogether.
Further, described baseband processing module also sends data to multimode multi-frequency baseband chip pin control circuit and effectively indicates control signal dvld_sel, and described multimode multi-frequency baseband chip pin control circuit sends intermediate-freuqncy signal data effective index signal dout_vld to baseband processing module.
Accompanying drawing explanation
Fig. 1 is the radio frequency chip and the baseband chip connection diagram that do not use pin control chip;
Fig. 2 is the position of pin control circuit in whole baseband chip;
Fig. 3 is pin control circuit signal input and output schematic diagram;
Fig. 4 is the principle of work schematic diagram of pin control circuit.
In accompanying drawing, the list of parts representated by each label is as follows:
1 ~ 15 is rising edge flip-flops; 16 ~ 30 is negative edge trigger; 31 ~ 45 select a data selector for alternative, and 46 ~ 61 is 15 select a data selector.
Embodiment
Be described principle of the present invention and feature below in conjunction with accompanying drawing, example, only for explaining the present invention, is not intended to limit scope of the present invention.
As shown in Figure 1, for not using radio frequency chip and the baseband chip connection diagram of pin control chip, pin takies many, and can not the radiofrequency signal of compatible many bits bit wide, if the pin of chip DIE input baseband signal is directly drawn out to the chip PIN pin after encapsulation, once apply this chip design circuit board or module data-signal order wrong, as the sign bit of signal data and the position of value bit wrong, whole design just can not be used, if but realize the selection of chip pin position by software merit rating, just can realize the position adjustment of data-signal and realization design is fault-tolerant.
Be illustrated in figure 2 the position of pin control circuit in whole baseband chip, pin control circuit is positioned between radio frequency chip (or radio frequency chip DIE) and baseband signal processing module.The sampled data of the sampling clock that radio frequency chip (or radio frequency chip DIE) exports and multimode multi-frequency signal gives pin control circuit.The selection control signal that pin control circuit sends according to baseband signal processing module carries out edge sampling selection to input data, pin positions is selected or multiplexing function is selected to control, and then gives follow-up baseband signal processing module and processes.
Be illustrated in figure 3 pin control circuit signal input and output schematic diagram.The sampled data N bit altogether of the sampling clock RF_CLK that input signal has radio frequency chip (or radio frequency chip DIE) to export and multiple frequency signal, in the present embodiment, M is 3, N is 15, each channel bit wide is 5 bits, sampled data is respectively RF_DIN0 ~ RF_DIN14, but chip PIN can be drawn out to by optional part pin when using this chip DIE to encapsulate, ensure that the external PIN pin of chip is less than 15.The control signal that input signal also has baseband signal processing module to export, comprises data bit sampling clock edge and selects control signal edge0_sel ~ edge14_sel, pin positions to select control signal pin0_sel ~ pin14_sel and data effectively to indicate demultiplex control signal dvld_sel.Pin control circuit exports and comprises the sampled data that data effectively indicate dout_vld and three frequency channels after treatment totally 15 bits (each frequency channel 5 Bit data).
As shown in Figure 4, for the principle of work schematic diagram of pin control circuit, pin control circuit obtains din0_pos ~ din14_pos, din0_neg ~ din14_neg through the sampling of the rising edge of sampling clock RF_CLK and negative edge sampling respectively to 15 bit radiofrequency signals of input, uses edge0_sel ~ edge14_sel to carry out alternative respectively obtain 15 Bit data a (the 1) ~ a (N-1) after clock edge selection sampling to the two.Final each signal bit is undertaken 15 by a (1) ~ a (N-1) and is selected one to obtain, and 15 signal bit export selects signal pin0_sel ~ pin15_sel to control by 15 pin positions respectively.Select 15 Bit datas after controlling by each frequency channel 5 bit, exporting the data of 3 frequency channels altogether, is ch0data ~ ch2data.
Need a large amount of checking work during design baseband chip, comprise the checking of simulating, verifying and hardware playback of data.These verification modes all need additionally to provide a data effective index signal, to realize the accurate control of data readback, ensure that playback checking is correct.But when true application connects radio frequency chip output data, these data effectively indicate and do not need (each sampling clock has a data sampled point), if effectively indicate the PIN pin taking a chip to data, also compare waste.The multiplexing then head it off of pin function of chip DIE is realized by software merit rating.
Therefore, the present invention also effectively indicates by producing data with logical one alternative again to any one signal bit (dout0 as in Fig. 4) exported.Data effectively indicate and are controlled by dvld_sel, when dvld_sel is 1, represent external radiofrequency signal, and the data of output effectively indicate effective all the time; When dvld_sel is 0, represents and use playback of data, the data that the data of output are effectively designated as playback effectively indicate, and sampled point alignment when realizing data readback checking with this and controlling functions, ensure that data readback authentication function is correct.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. a multimode multi-frequency baseband chip pin control circuit, is characterized in that, comprising:
N number of rising edge flip-flops, for carrying out rising edge sampling with sampling clock RF_CLK to common N bit signal RF_DIN (0) ~ RF_DIN (N-1) that M channel inputs, obtain signal din (0) _ pos ~ din (N-1) _ pos;
N number of negative edge trigger, for carrying out negative edge sampling with N bit radiofrequency signal RF_DIN (the 0) ~ RF_DIN (N-1) of sampling clock RF_CLK to input, obtain signal din (0) _ neg ~ din (N-1) _ neg;
Also comprise N number of alternative data selector, signal din (0) _ pos and din (0) _ neg inputs two data input pins of an alternative data selector respectively, corresponding sampling clock edge selects control signal edge (0) _ sel to input the selecting side of alternative data selector, for carrying out alternative selection to data, the signal obtained after selection is a (0);
Signal din (1) _ pos ~ din (N-1) _ pos inputs different alternative data selector data input pins respectively, signal din (1) _ neg ~ din (N-1) _ neg inputs another data input pin of corresponding alternative data selector respectively, sampling clock edge selects control signal edge (1) _ sel ~ edge (N-1) _ sel to input the selecting side of corresponding alternative data selector respectively, carry out alternative selection to data, the signal obtained after selection is a (1) ~ a (N-1);
Also comprise N number of N and select a data selector, described all N select the signal of N number of data input pin input of a data selector to be a (0) ~ a (N-1), selecting side input signal is respectively pin positions and selects signal pin (0) _ sel ~ pin (N-1) _ sel, the signal exported is respectively dout (0) ~ dout (N-1), the bit wide of corresponding each channel input signal again, being divided into M channel to export, is ch (0) data ~ ch (M-1) data.
2. multimode multi-frequency baseband chip pin control circuit according to claim 1, is characterized in that, the common N bit signal of described M channel input, is radiofrequency signal or the playback of data for gathering in advance.
3. multimode multi-frequency baseband chip pin control circuit according to claim 2, it is characterized in that, also comprise 1 alternative data selector, a data input pin of described alternative data selector connects the data output end that any one N selects a data selector, another data input pin input logic level " 1 ", control end input data effectively indicate control signal dvld_sel, export intermediate-freuqncy signal data effective index signal dout_vld;
When external radiofrequency signal, control signal dvld_sel is 1, and output signal dout_vld is logic level " 1 ", represents that radiofrequency signal is effective all the time; When external playback of data, control signal dvld_sel is 0, and output signal dout_vld is the playback of data signal of alternative data selector data input pin input, represents that playback of data is effective.
4. multimode multi-frequency baseband chip pin control circuit according to claim 1, it is characterized in that, described N is natural number, and is not more than 20.
5. multimode multi-frequency baseband chip pin control circuit according to claim 1, it is characterized in that, described M is natural number, and is not more than 5.
6. a multimode multi-frequency baseband chip pin control method, is characterized in that, comprise the following steps:
(1) with sampling clock RF_CLK, rising edge sampling is carried out to common N bit signal RF_DIN (0) ~ RF_DIN (14) that M channel inputs, obtain signal din (0) _ pos ~ din (N-1) _ pos;
With sampling clock RF_CLK to M channel input common N bit signal RF_DIN (0) ~ RF_DIN (14) carry out negative edge sampling, obtain signal din (0) _ neg ~ din (N-1) _ neg;
(2) sampling clock edge is utilized to select control signal edge (0) _ sel ~ edge (N-1) _ sel to carry out alternative to signal din (0) _ pos ~ din (N-1) _ pos and signal din (0) _ neg ~ din (N-1) _ neg respectively and obtain signal a (1) ~ a (N-1);
(3) pin positions is utilized to select signal pin (0) _ sel ~ pin (N-1) _ sel to select signal a (1) ~ a (N-1) respectively, select through N time, obtain output signal dout (0) ~ dout (N-1), the bit wide of corresponding each channel input signal again, being divided into M channel to export, is ch (0) data ~ ch (M-1) data.
7. multimode multi-frequency baseband chip pin control method according to claim 6, is characterized in that, the common N bit signal of described M channel input, is radiofrequency signal or the playback of data for gathering in advance.
8. multimode multi-frequency baseband chip pin control method according to claim 7, it is characterized in that, also comprise and utilize data effectively to indicate control signal dvld_sel to carry out alternative to any one in output signal dout (0) ~ dout (N-1) and logic level " 1 ", export the step of intermediate-freuqncy signal data effective index signal dout_vld;
When external radiofrequency signal, control signal dvld_sel is 1, and output signal dout_vld is logical signal " 1 ", represents that radiofrequency signal is effective all the time; When external playback of data, control signal dvld_sel is 0, and output signal dout_vld is the playback of data signal carrying out alternative, represents that playback of data is effective.
9. a base band signal processing chip, it is characterized in that, comprise the multimode multi-frequency baseband chip pin control circuit described in any one of claim 1-8 and baseband processing module, described multimode multi-frequency baseband chip pin control circuit and baseband processing module are electrically connected
Described baseband processing module sends sampling clock edge to multimode multi-frequency baseband chip and selects control signal edge (0) sel ~ edge (N-1) sel and pin positions to select signal pin (0) sel ~ pin (N-1) sel;
Described multimode multi-frequency baseband chip pin control circuit is to the channel of the M after baseband processing module transmission processing N bit signal ch (0) data ~ ch (M-1) data altogether.
10. base band signal processing chip according to claim 9, it is characterized in that, described baseband processing module also sends data to multimode multi-frequency baseband chip pin control circuit and effectively indicates control signal dvld_sel, and described multimode multi-frequency baseband chip pin control circuit also sends intermediate-freuqncy signal data effective index signal dout_vld to baseband processing module.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110146902A (en) * | 2019-05-20 | 2019-08-20 | 武汉梦芯科技有限公司 | A kind of satellite navigation baseband signal playback reproducer, automatic Verification system and method |
| CN113534995A (en) * | 2021-06-24 | 2021-10-22 | 合肥松豪电子科技有限公司 | TDDI chip shared by SPI interfaces |
| CN116800293A (en) * | 2023-08-24 | 2023-09-22 | 苏州门海微电子科技有限公司 | Base band chip and radio frequency chip synchronization method, base band chip and radio frequency chip |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102508267A (en) * | 2011-10-09 | 2012-06-20 | 东南大学 | Intermediate frequency data acquisition and playback system in GNSS (global navigation satellite system) receiver |
| CN202818280U (en) * | 2012-05-17 | 2013-03-20 | 天津里外科技有限公司 | Mobile terminal and radio frequency front end thereof with radio frequency digital-to-analogue conversion type linear transmitter |
| US20130120036A1 (en) * | 2011-11-16 | 2013-05-16 | Qualcomm Incorporated | Apparatus and method for recovering burst-mode pulse width modulation (pwm) and non-return-to-zero (nrz) data |
| CN103117767A (en) * | 2013-01-15 | 2013-05-22 | 武汉大学 | Multi-mode multi-frequency global navigational satellite system receiver radio frequency front end device |
| CN103323862A (en) * | 2013-06-28 | 2013-09-25 | 武汉大学 | Anti-interference GNSS receiver device combining multiple modes and multiple frequencies with array processing |
| CN104579455A (en) * | 2015-02-04 | 2015-04-29 | 上海航天测控通信研究所 | Multi-data-channel automatic selection type processing device of satellite-borne data transmission transmitter |
| CN204376885U (en) * | 2015-02-12 | 2015-06-03 | 成都大公博创信息技术有限公司 | Based on the wideband digital receiver data acquisition unit of High-speed I/O technology |
-
2015
- 2015-11-27 CN CN201510855697.5A patent/CN105510937B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102508267A (en) * | 2011-10-09 | 2012-06-20 | 东南大学 | Intermediate frequency data acquisition and playback system in GNSS (global navigation satellite system) receiver |
| US20130120036A1 (en) * | 2011-11-16 | 2013-05-16 | Qualcomm Incorporated | Apparatus and method for recovering burst-mode pulse width modulation (pwm) and non-return-to-zero (nrz) data |
| CN202818280U (en) * | 2012-05-17 | 2013-03-20 | 天津里外科技有限公司 | Mobile terminal and radio frequency front end thereof with radio frequency digital-to-analogue conversion type linear transmitter |
| CN103117767A (en) * | 2013-01-15 | 2013-05-22 | 武汉大学 | Multi-mode multi-frequency global navigational satellite system receiver radio frequency front end device |
| CN103323862A (en) * | 2013-06-28 | 2013-09-25 | 武汉大学 | Anti-interference GNSS receiver device combining multiple modes and multiple frequencies with array processing |
| CN104579455A (en) * | 2015-02-04 | 2015-04-29 | 上海航天测控通信研究所 | Multi-data-channel automatic selection type processing device of satellite-borne data transmission transmitter |
| CN204376885U (en) * | 2015-02-12 | 2015-06-03 | 成都大公博创信息技术有限公司 | Based on the wideband digital receiver data acquisition unit of High-speed I/O technology |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110146902A (en) * | 2019-05-20 | 2019-08-20 | 武汉梦芯科技有限公司 | A kind of satellite navigation baseband signal playback reproducer, automatic Verification system and method |
| CN113534995A (en) * | 2021-06-24 | 2021-10-22 | 合肥松豪电子科技有限公司 | TDDI chip shared by SPI interfaces |
| CN113534995B (en) * | 2021-06-24 | 2023-02-28 | 合肥松豪电子科技有限公司 | TDDI chip shared by SPI interfaces |
| CN116800293A (en) * | 2023-08-24 | 2023-09-22 | 苏州门海微电子科技有限公司 | Base band chip and radio frequency chip synchronization method, base band chip and radio frequency chip |
| CN116800293B (en) * | 2023-08-24 | 2023-11-03 | 苏州门海微电子科技有限公司 | Base band chip and radio frequency chip synchronization method, base band chip and radio frequency chip |
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|---|---|
| CN105510937B (en) | 2017-09-19 |
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