CN105846836A - Chip special for wireless radio frequency transmission - Google Patents
Chip special for wireless radio frequency transmission Download PDFInfo
- Publication number
- CN105846836A CN105846836A CN201610146231.2A CN201610146231A CN105846836A CN 105846836 A CN105846836 A CN 105846836A CN 201610146231 A CN201610146231 A CN 201610146231A CN 105846836 A CN105846836 A CN 105846836A
- Authority
- CN
- China
- Prior art keywords
- circuit
- module
- wireless radio
- power amplifier
- osc
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/02—Transmitters
- H04B1/04—Circuits
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/02—Transmitters
- H04B1/04—Circuits
- H04B1/0475—Circuits with means for limiting noise, interference or distortion
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/02—Transmitters
- H04B1/04—Circuits
- H04B2001/0408—Circuits with power amplifiers
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Transmitters (AREA)
Abstract
The invention discloses a chip special for wireless radio frequency transmission. The chip comprises a read only memory module, an output control circuit, a logical control module, a low-voltage detection circuit, an OSC (Open Short Check) circuit, a phase-locked loop circuit and a power amplifier, wherein the read only memory module is connected with the control circuit; the OSC circuit, the phase-locked loop circuit and the power amplifier are connected in sequence; the logical control circuit is connected with the OSC circuit, the phase-locked loop circuit, the power amplifier, the output control circuit and the low-voltage detection circuit; and an output end of the power amplifier is used for being connected with an external antenna. A radio frequency transmission system is simplified, has high interference, and is low in cost and suitable for mass production.
Description
Technical field
The present invention relates to the integrated circuit of a kind of wireless radio frequency transmission, particularly to a kind of wireless radio transmission special chip, belong to collection
Become circuit engineering field.
Background technology
The wireless radio frequency transmission circuit that presently, there are has two classes, a class to be to use special IC to realize with discrete device, and a class is
Microcontroller is used to realize with discrete device.But the wireless radio frequency transmission circuit not only system of this two class is loaded down with trivial details, and its production cost
Relatively big, the development for wireless radio frequency transmission does not has facilitation.It is contemplated that invention one is adopted based on current two class implementations
With single integrated circuit, system cost can be greatly reduced, be suitable for high-volume volume production.
Summary of the invention
For the deficiencies in the prior art, it is an object of the invention to provide a kind of wireless radio transmission special chip, this chip radio frequency passes
Communication system is more succinct, anti-interference by force, low cost.
For realizing aforementioned invention purpose, the technical solution used in the present invention includes:
A kind of wireless radio transmission special chip, it includes read-only memory module, output control circuit, Logic control module, low pressure
Testing circuit, OSC circuit, phase-locked loop circuit and power amplifier, described read-only memory module is connected with described control circuit, institute
State OSC circuit, described phase-locked loop circuit and described power amplifier to be sequentially connected with, described logic control circuit and described OSC electricity
Road, described phase-locked loop circuit, described power amplifier, described output control circuit and described low-voltage testing circuit connect, described merit
Rate amplifier outfan is for being connected with external antenna.
Further, described read-only memory module includes controlling key-press module, signaling control module, frequency dividing selection module, address choosing
Selecting module and FLASH module, described control key-press module is connected with described signaling control module, described FLASH module respectively with institute
State signaling control module, described frequency dividing selects module and described address selection module connects, and described frequency dividing selects module and described address
Module is selected all to be connected with described signaling control module.
Further, described OSC circuit includes oscillating circuit and crystal oscillator.
Further, described wireless radio transmission special chip uses SOP8 encapsulation.
The OSC circuit that the present invention uses provides a system to clock, according to demand can unrestricted choice is external or built-in crystal oscillator；And built-in can
The read-only memory module repeatedly programmed, provides convenient development environment to client；(i.e. output controls electricity to built-in charge pump circuit
Road), different display lamps can be driven；Built-in High-Performance Phase-Locked circuit inhibits the noise of the input signal that is added to, it is ensured that have steady
Fixed reliable carrier frequency；Lockin signal is amplified by built-in power amplifier, to provide the output needed；Logic built
Control guarantee low pressure detection, amplitude and phase-locked effective time just can carry out radio frequency transmission.
Compared with prior art, the invention have the advantages that this radio-frequency (RF) transmission system is more succinct, anti-interference by force, low cost is suitable for
Produce in enormous quantities.
Accompanying drawing explanation
Fig. 1 is the structured flowchart of wireless radio transmission special chip in a preferred embodiment of the present invention；
Fig. 2 is the chip figure in Fig. 1 embodiment after the encapsulation of wireless radio transmission special chip；
Fig. 3 is the application circuit of wireless radio transmission special chip during Fig. 1 implements.
Detailed description of the invention
In view of deficiency of the prior art, inventor, through studying for a long period of time and putting into practice in a large number, is proposed the technical side of the present invention
Case.This technical scheme, its implementation process and principle etc. will be further explained as follows.
Embodiment includes read-only memory module, output control circuit, logic control refering to this wireless radio transmission special chip of Fig. 1-2
Molding block, low-voltage testing circuit, OSC circuit, phase-locked loop circuit and power amplifier；Read-only memory module is with control circuit even
Connecing, OSC circuit, phase-locked loop circuit and power amplifier are sequentially connected with, logic control circuit and OSC circuit, phase-locked loop circuit,
Power amplifier, output control circuit and low-voltage testing circuit connect；
Wherein, read-only memory module include control key-press module, signaling control module, frequency dividing select module, address selection module and
FLASH module, controls key-press module and is connected with signaling control module, and FLASH module selects mould with signaling control module, frequency dividing respectively
Block and address selection module connect, and frequency dividing selects module and address selection module to be all connected with signaling control module；OSC circuit includes
Oscillating circuit and crystal oscillator.
This wireless radio transmission special chip uses SOP8 encapsulation, wherein controls key-press module and is connected with encapsulation chip U pin 5-7,
Output control circuit is connected with encapsulation chip U pin 8, and oscillating circuit is connected with encapsulation chip U pin 4, and power amplifier exports
Hold and be connected with encapsulation chip U pin 1；Crystal oscillator Y1 is placed on encapsulation chip U.
The pin of this encapsulation chip U is described as follows table:
| Foot position | Title | Type | Function declaration |
| 1 | PAOUT | O | Radiofrequency signal exports |
| 2 | GND | -- | Ground |
| 3 | VDD | -- | Power supply |
| 4 | OSC/S0 | I/O | Crystal oscillator/key-press input |
| 5 | S0/S1 | I/O | Key-press input |
| 6 | S1/S2 | I/O | Key-press input |
| 7 | S2/S3 | I/O | Key-press input |
| 8 | LED | O | Display lamp |
The OSC circuit that the present embodiment uses provides a system to clock；The read-only memory module that can repeatedly program provides conveniently to client
Development environment；Charge pump circuit (i.e. output control circuit) can driven for emitting lights diode；High-Performance Phase-Locked circuit inhibits folded
It is added to the noise of input signal, it is ensured that have reliable and stable carrier frequency；Lockin signal is amplified by power amplifier, to provide
The output needed；Logic control guarantee low pressure detection, amplitude and phase-locked effective time just can carry out radio frequency transmission.
Refering to Fig. 3, the application in a particular embodiment of this embodiment, encapsulation chip U pin 1 and first inductance L1 one end and the
Two electric capacity C2 one end connect, and the first inductance L1 other end connects 3V positive voltage through the first resistance R1, and the second electric capacity C2 other end is through the
Two inductance are connected with antenna ANTENNA；Encapsulation chip U pin 2 is connected with first electric capacity one end, and ground connection；Encapsulation chip U draws
Foot 3 is connected with the first electric capacity other end, and connects positive voltage；Encapsulation chip U pin 4 ground connection after crystal oscillator Y1；Encapsulation chip U draws
Foot 8 is ground connection after light emitting diode D1 and the second resistance R2.Wherein, three key-press input combination of two can form three and press
Key, three key-press inputs can also form three buttons the most over the ground, at most can realize six kinds of buttons.
Three key-press input ends in the application of above-described embodiment at most can realize six kinds of buttons.Wherein, signal is through internal control
And after carrier-modulated, the antenna ANTENNA then connected from encapsulation chip U pin 1 transfers out；When crystal oscillator Y1 uses
During 9.84375M crystal oscillator, satellite transmitted frequencies is 315M；When crystal oscillator Y1 uses 13.56M crystal oscillator, satellite transmitted frequencies is
433.92M；
Should be appreciated that above-described embodiment is only technology design and the feature of the explanation present invention, its object is to allow and be familiar with technique
Personage will appreciate that present disclosure and implements according to this, can not limit the scope of the invention with this.All according to present invention essence
The equivalence that god's essence is made changes or modifies, and all should contain within protection scope of the present invention.
Claims (4)
1. a wireless radio transmission special chip, it is characterized in that, it includes read-only memory module, output control circuit, Logic control module, low-voltage testing circuit, OSC circuit, phase-locked loop circuit and power amplifier, described read-only memory module is connected with described control circuit, described OSC circuit, described phase-locked loop circuit and described power amplifier are sequentially connected with, described logic control circuit and described OSC circuit, described phase-locked loop circuit, described power amplifier, described output control circuit and described low-voltage testing circuit connect, described power amplifier output is for being connected with external antenna.
Wireless radio transmission special chip the most according to claim 1, it is characterized in that, described read-only memory module includes controlling key-press module, signaling control module, frequency dividing selection module, address selection module and FLASH module, described control key-press module is connected with described signaling control module, described FLASH module selects module and described address selection module to be connected with described signaling control module, described frequency dividing respectively, and described frequency dividing selects module and described address selection module to be all connected with described signaling control module.
Wireless radio transmission special chip the most according to claim 1, it is characterised in that described OSC circuit includes oscillating circuit and crystal oscillator.
4. according to wireless radio transmission special chip described in claim 1-3, it is characterised in that described wireless radio transmission special chip uses SOP8 encapsulation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610146231.2A CN105846836A (en) | 2016-03-15 | 2016-03-15 | Chip special for wireless radio frequency transmission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610146231.2A CN105846836A (en) | 2016-03-15 | 2016-03-15 | Chip special for wireless radio frequency transmission |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105846836A true CN105846836A (en) | 2016-08-10 |
Family
ID=56587306
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610146231.2A Pending CN105846836A (en) | 2016-03-15 | 2016-03-15 | Chip special for wireless radio frequency transmission |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105846836A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060038710A1 (en) * | 2004-08-12 | 2006-02-23 | Texas Instruments Incorporated | Hybrid polar/cartesian digital modulator |
| CN201980184U (en) * | 2011-02-10 | 2011-09-21 | 彭希南 | Automobile push to talk (PTT) burglar alarm |
| CN102866387A (en) * | 2012-10-16 | 2013-01-09 | 清华大学 | Millimeter wave frequency modulated continuous wave (FMCW) two-unit phased array distance and velocity measurement monolithic radar transceiver |
| CN104052505A (en) * | 2013-11-07 | 2014-09-17 | 无锡泽太微电子有限公司 | Single-chip wireless transmitter, transmitting chip and signal transmitting method |
-
2016
- 2016-03-15 CN CN201610146231.2A patent/CN105846836A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060038710A1 (en) * | 2004-08-12 | 2006-02-23 | Texas Instruments Incorporated | Hybrid polar/cartesian digital modulator |
| CN201980184U (en) * | 2011-02-10 | 2011-09-21 | 彭希南 | Automobile push to talk (PTT) burglar alarm |
| CN102866387A (en) * | 2012-10-16 | 2013-01-09 | 清华大学 | Millimeter wave frequency modulated continuous wave (FMCW) two-unit phased array distance and velocity measurement monolithic radar transceiver |
| CN104052505A (en) * | 2013-11-07 | 2014-09-17 | 无锡泽太微电子有限公司 | Single-chip wireless transmitter, transmitting chip and signal transmitting method |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160810 |