CN112152645A - Fully-integrated wireless transmitting chip realized based on CMOS (complementary Metal oxide semiconductor) process and application thereof - Google Patents
Fully-integrated wireless transmitting chip realized based on CMOS (complementary Metal oxide semiconductor) process and application thereof Download PDFInfo
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- CN112152645A CN112152645A CN201910564847.5A CN201910564847A CN112152645A CN 112152645 A CN112152645 A CN 112152645A CN 201910564847 A CN201910564847 A CN 201910564847A CN 112152645 A CN112152645 A CN 112152645A
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- 238000000034 method Methods 0.000 title claims abstract description 21
- 230000008569 process Effects 0.000 title claims abstract description 20
- 229910044991 metal oxide Inorganic materials 0.000 title claims abstract description 11
- 150000004706 metal oxides Chemical class 0.000 title claims abstract description 11
- 239000004065 semiconductor Substances 0.000 title claims abstract description 11
- 230000000295 complement effect Effects 0.000 title claims abstract description 7
- 230000000087 stabilizing effect Effects 0.000 claims abstract description 17
- 230000005669 field effect Effects 0.000 claims description 15
- 230000010354 integration Effects 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 5
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- 230000008859 change Effects 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
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- 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
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- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
- G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
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- 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
- H04B2001/0491—Circuits with frequency synthesizers, frequency converters or modulators
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Abstract
The invention discloses a full-integrated wireless transmitting chip based on a CMOS (complementary metal oxide semiconductor) process and application thereof, wherein the wireless transmitting chip internally comprises a clock oscillator, a key power supply module, an encoding circuit, a power amplifying circuit, a band-gap reference circuit and a voltage stabilizing circuit; the interface circuit of the wireless transmitting chip comprises a key power supply output end, a grounded power supply negative end input end, a power output end and a plurality of key input ends; an external inductor is connected between the key power supply output end and the power output end, the power output end is also connected with a matching network, and the matching network is connected with an antenna; the power amplifier transmits the carrier signal generated by the clock oscillator and the modulation signal generated by the coding circuit to the wireless modulation signal through the external inductor, the matching network and the antenna. The invention has the advantages of higher integration level, high reliability, simpler system and lower cost of the whole scheme, and can adapt to more wireless transmitting devices.
Description
Technical Field
The invention relates to the field of electricity, in particular to a fully integrated wireless transmitting chip based on a CMOS (complementary metal oxide semiconductor) process.
Background
A crystal oscillator (XTAL) or a sound meter in a conventional wireless remote control device is an indispensable device. The method is widely applied to remote control devices. It is used in communication systems primarily as a reference for frequency generators, for generating carriers, or directly with acoustic surface. The traditional scheme has the defects of high cost, high system power consumption and incapability of being integrated into a chip, and has no way of meeting the requirements of low cost, low power consumption and miniaturization of the wireless remote control device.
Wireless remote control devices require low power consumption because they are expected to last longer on batteries. The power supply of the traditional wireless remote control device battery directly supplies power for the chip power supply, and certain standby power consumption exists. Some schemes are that a switch triode is added outside a chip, and the triode is not switched on when the key is not pressed, so that the aim of reducing the standby power consumption is achieved. However, in these schemes, the triode and the resistor are added externally, and there are many components, high cost, and inconvenience in wiring of the PCB board.
Disclosure of Invention
In order to overcome the defects of the wireless remote control device in the prior art, the invention aims to provide a fully integrated wireless transmitting chip based on a CMOS (complementary metal oxide semiconductor) process, the chip is not required to be directly connected with a power supply, so that the chip has no standby power consumption, and the wireless transmitting chip has the characteristics of high integration level, simple PCB (printed circuit board) wiring, low cost and the like.
In order to achieve the technical purpose and achieve the technical effect, the invention is realized by the following technical scheme:
a full-integrated wireless transmitting chip based on a CMOS (complementary metal oxide semiconductor) process is disclosed, wherein the wireless transmitting chip internally comprises a clock oscillator, a key power supply module, an encoding circuit, a power amplifying circuit, a band-gap reference circuit and a voltage stabilizing circuit; the interface circuit of the wireless transmitting chip comprises a key power supply output end, a grounded power supply negative end input end, a power output end and a plurality of key input ends; after any key input end of the key power supply module receives a signal, the key power supply module transmits power to the band-gap reference circuit, the voltage stabilizing circuit and the key power supply output end; the band-gap reference circuit provides a reference voltage which is irrelevant to the temperature for the voltage stabilizing circuit; the voltage stabilizing circuit provides the internal core voltage of the wireless transmitting chip for the clock oscillator, the coding circuit and the power amplifying circuit; the clock oscillator provides a carrier signal for the power amplifier and simultaneously provides a clock signal for the coding circuit; the coding circuit generates a wireless modulation signal; an output end of the power amplifying circuit is used as the power output end; the key power supply module is led out of a plurality of key input ends.
Furthermore, the key power supply module is composed of a plurality of key power supply circuits, each key power supply circuit provides a key input end, and each key power supply circuit is composed of a field effect transistor PMOS (P-channel metal oxide semiconductor) tube and a common source NMOS (N-channel metal oxide semiconductor) tube; the grid electrode of the field effect transistor PMOS tube is connected with the drain electrode output of the common source NMOS tube, the source electrode of the field effect transistor PMOS tube is connected with the key input end, and the drain electrode of the field effect transistor PMOS tube is connected with the key power supply output end, the band-gap reference circuit and the voltage stabilizing circuit; the grid electrode of the common source NMOS tube is connected with the key input end, the source electrode of the common source NMOS tube is grounded, and the drain electrode of the common source NMOS tube is connected with the load resistor and outputs signals to the grid electrode of the field effect transistor PMOS tube.
Preferably, the key input end (D) is further connected to a pull-down resistor (R3), and the other end of the pull-down resistor (R3) is grounded; and the grid electrode of the common source NMOS tube is connected with the key input end through a resistor. The resistor, the load resistor and the pull-down resistor can be realized in a resistor mode, and an MOS (metal oxide semiconductor) tube can also be used as the resistor.
Further, the interface circuit of the wireless transmitting chip further comprises an LED indication output terminal, and an output terminal of the encoding circuit is used as the LED indication output terminal.
Preferably, the number of the key input ends is four, and the four key input ends are respectively a first key input end, a second key input end, a third key input end and a fourth key input end.
The application of the fully integrated wireless transmitting chip based on the CMOS process is characterized in that an external inductor is connected between the key power supply output end and the power output end, the power output end is also connected with a matching network, and the matching network is connected with an antenna; the power amplifier transmits the carrier signal generated by the clock oscillator and the modulation signal generated by the coding circuit to the wireless modulation signal through the external inductor, the matching network and the antenna.
Furthermore, the key input end is connected with a power supply through a key.
Preferably, the LED indication output end is connected with an LED light-emitting diode.
Preferably, the key power supply output end is connected with an LED through a resistor.
The invention has the beneficial effects that:
compared with the prior art, the high-precision on-chip clock oscillator, the key power supply module, the coding circuit, the power amplifying circuit, the band-gap reference circuit and the voltage stabilizing circuit are integrated in the wireless transmitting chip, a crystal oscillator and a sound meter device are not needed outside, and the wireless transmitting function can be realized only by a simple power amplifier matching network; the whole wireless transmitting chip does not need to be connected with a power supply, and the power supply is realized by supplying power to the inside of the chip and the power supply output end of the key through the key. The defects of multiple components, high cost, inconvenience in PCB wiring and the like in the traditional scheme are overcome, and the integrated circuit board has the advantages of high integration level, simple system, convenience in PCB wiring and the like.
The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical solutions of the present invention more clearly understood and to implement them in accordance with the contents of the description, the following detailed description is given with reference to the preferred embodiments of the present invention and the accompanying drawings. The detailed description of the present invention is given in detail by the following examples and the accompanying drawings.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention. In the drawings:
FIG. 1 is a schematic diagram of an internal functional framework of a fully integrated wireless transmitting chip according to the present invention;
FIG. 2 is a schematic circuit diagram of the key power supply circuit of the present invention;
FIG. 3 is a system diagram of a first embodiment of the fully integrated wireless transmitting chip of the present invention;
FIG. 4 is a system diagram of a second embodiment of the fully integrated wireless transmitting chip of the present invention;
fig. 5 is a schematic diagram of a fully integrated wireless transmitting chip pin according to the present invention.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
Referring to fig. 1, a fully integrated wireless transmitting chip based on a CMOS process includes a clock oscillator 1, a key power supply module 2, an encoding circuit 3, a power amplifying circuit 4, a bandgap reference circuit 5 and a voltage stabilizing circuit 6; the interface circuit of the wireless transmitting chip comprises a key power supply output end VDD, a grounded power supply negative end input end GND, a power output end PAOUT and a plurality of key input ends D; after any one key input end D of the key power supply module 2 receives a signal, the key power supply module 2 transmits power to the band-gap reference circuit 5, the voltage stabilizing circuit 6 and the key power supply output end VDD; the band-gap reference circuit 5 provides a reference voltage which is irrelevant to the temperature for the voltage stabilizing circuit 6; the voltage stabilizing circuit 6 provides the internal core voltage V18 of the wireless transmitting chip for the clock oscillator 1, the coding circuit 3 and the power amplifying circuit 4; the clock oscillator 1 provides a carrier signal to the power amplifier 4 and simultaneously provides a clock signal to the encoding circuit 3; the coding circuit 3 generates a wireless modulation signal; an output end of the power amplifying circuit 4 is used as the power output end PAOUT; and a plurality of key input ends D are led out from the key power supply module 2.
Further, referring to fig. 2, the key power supply module 2 is composed of a plurality of key power supply circuits, each key power supply circuit provides a key input terminal, and the key power supply circuit is composed of a field effect transistor PMOS transistor P0 and a common source NMOS transistor N0; the grid electrode of the field effect transistor PMOS pipe P0 is connected with the drain electrode output of the common source NMOS pipe N0, the source electrode of the field effect transistor PMOS pipe P0 is connected with the key input end D, and the drain electrode of the field effect transistor PMOS pipe P0 is connected with the key power supply output end VDD, the band gap reference circuit 5 and the voltage stabilizing circuit 6; the gate of the common source NMOS transistor N0 is connected to the key input end D, the source of the common source NMOS transistor N0 is grounded, and the drain of the common source NMOS transistor N0 is connected to the load resistor R2 and outputs a signal to the gate of the field effect transistor PMOS transistor P0.
Preferably, the key input end D is further connected to a pull-down resistor R3, and the other end of the pull-down resistor R3 is grounded; the gate of the common source NMOS transistor N0 is connected to the key input D through a resistor R1. The resistor R1, the load resistor R2 and the pull-down resistor R3 may be implemented in the form of resistors or MOS transistors.
Further, the interface circuit of the wireless transmitting chip further comprises an LED indicating output end LED, and an output end of the encoding circuit 3 serves as the LED indicating output end LED.
Preferably, as shown in fig. 5, the key inputs D include four, respectively a first key input D0, a second key input D1, a third key input D2 and a fourth key input D3.
Example 1:
referring to fig. 3, in an application of the fully integrated wireless transmitting chip based on the CMOS process, an external inductor L1 is connected between the key power supply output terminal VDD and the power output terminal PAOUT, the power output terminal PAOUT is further connected to a matching network 7, and the matching network 7 is connected to an antenna 8; the power amplifier 4 transmits the carrier signal generated by the clock oscillator 1 and the modulation signal generated by the encoding circuit 3 to the wireless modulation signal through the external inductor L1, the matching network 7 and the antenna 8. And the key input end D is connected with a power supply through a key K. The LED indication output end LED is connected with an LED light-emitting diode 9.
Example 2:
referring to fig. 4, in an application of the fully integrated wireless transmitting chip based on the CMOS process, an external inductor L1 is connected between the key power supply output terminal VDD and the power output terminal PAOUT, the power output terminal PAOUT is further connected to a matching network 7, and the matching network 7 is connected to an antenna 8; the power amplifier 4 transmits the carrier signal generated by the clock oscillator 1 and the modulation signal generated by the encoding circuit 3 to the wireless modulation signal through the external inductor L1, the matching network 7 and the antenna 8. And the key input end D is connected with a power supply through a key K. The key power supply output end VDD is connected to an LED 9 through a resistor R5.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. The pin layout of the chip shown in fig. 5, the number of the keys, the change of the pin sequence, the change or omission of the LED lamp position, etc. all of the modifications, equivalent substitutions, improvements, etc. within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (10)
1. A full-integrated wireless transmitting chip based on a CMOS (complementary metal oxide semiconductor) process is characterized in that: the wireless transmitting chip internally comprises a clock oscillator (1), a key power supply module (2), an encoding circuit (3), a power amplifying circuit (4), a band-gap reference circuit (5) and a voltage stabilizing circuit (6);
the interface circuit of the wireless transmitting chip comprises a key power supply output end (VDD), a grounded power supply negative end input end (GND), a power output end (PAOUT) and a plurality of key input ends (D);
after any key input end (D) of the key power supply module (2) receives a signal, the key power supply module (2) transmits power to the band-gap reference circuit (5), the voltage stabilizing circuit (6) and the key power supply output end (VDD);
the band-gap reference circuit (5) provides a reference voltage which is irrelevant to the temperature for the voltage stabilizing circuit (6);
the voltage stabilizing circuit (6) provides the internal core voltage (V18) of the wireless transmitting chip for the clock oscillator (1), the coding circuit (3) and the power amplifying circuit (4);
the clock oscillator (1) provides a carrier signal to the power amplifier (4) and simultaneously provides a clock signal to the encoding circuit (3);
the encoding circuit (3) generates a wireless modulation signal;
an output end of the power amplifying circuit (4) is used as the power output end (PAOUT);
the key power supply module (2) is provided with a plurality of key input ends (D).
2. The fully integrated wireless transmitting chip based on CMOS process according to claim 1, wherein: the key power supply module (2) is composed of a plurality of key power supply circuits, each key power supply circuit provides a key input end (D), and each key power supply circuit is composed of a field effect transistor PMOS (P0) and a common source NMOS (N0);
the grid electrode of the field effect transistor PMOS tube (P0) is connected with the drain electrode output of the common source NMOS tube (N0), the source electrode of the field effect transistor PMOS tube (P0) is connected with the key input end (D), and the drain electrode of the field effect transistor PMOS tube (P0) is connected with the key power supply output end (VDD), the band gap reference circuit (5) and the voltage stabilizing circuit (6);
the grid electrode of the common source NMOS tube (N0) is connected with the key input end (D), the source stage of the common source NMOS tube (N0) is grounded, and the drain electrode of the common source NMOS tube (N0) is connected with the load resistor (R2) and outputs a signal to the grid electrode of the field effect transistor PMOS tube (P0).
3. The fully integrated wireless transmitting chip based on CMOS process according to claim 2, wherein: the grid electrode of the common source NMOS (N0) is connected with the key input end (D) through a resistor (R1); the key input end (D) is also connected with a pull-down resistor (R3), and the other end of the pull-down resistor (R3) is grounded.
4. The fully integrated wireless transmitting chip based on CMOS process of claim 3, wherein: the resistor (R1), the load resistor (R2) and the pull-down resistor (R3) can be realized in a form of a resistor or a MOS (metal oxide semiconductor) tube as the resistor.
5. The fully integrated wireless transmitting chip based on CMOS process according to claim 1, wherein: the interface circuit of the wireless transmitting chip further comprises an LED indicating output end (LED), and an output end of the coding circuit (3) is used as the LED indicating output end (LED).
6. The fully integrated wireless transmitting chip based on CMOS process according to claim 1, wherein: the key input terminals (D) include four, respectively a first key input terminal (D0), a second key input terminal (D1), a third key input terminal (D2) and a fourth key input terminal (D3).
7. Use of a fully integrated wireless transmitting chip based on CMOS process according to any of claims 1 to 6, characterized in that: an external inductor (L1) is connected between the key power supply output end (VDD) and the power output end (PAOUT), the power output end (PAOUT) is also connected with a matching network (7), and the matching network (7) is connected with an antenna (8); the power amplifier (4) transmits the carrier signal generated by the clock oscillator (1) and the modulation signal generated by the coding circuit (3) to the wireless modulation signal through the external inductor (L1), the matching network (7) and the antenna (8).
8. The use of the fully integrated wireless transmitting chip based on CMOS process according to claim 7, wherein: the key input end (D) is connected with a power supply through a key (K).
9. The use of the fully integrated wireless transmitting chip based on CMOS process according to claim 7, wherein: the LED indication output end (LED) is connected with an LED light-emitting diode (9).
10. The use of the fully integrated wireless transmitting chip based on CMOS process according to claim 7, wherein: the key power supply output end (VDD) is connected with an LED light-emitting diode (9) through a resistor (R5).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910564847.5A CN112152645B (en) | 2019-06-27 | 2019-06-27 | Fully-integrated wireless transmitting chip realized based on CMOS technology and application thereof |
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| CN201910564847.5A CN112152645B (en) | 2019-06-27 | 2019-06-27 | Fully-integrated wireless transmitting chip realized based on CMOS technology and application thereof |
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| CN112152645A true CN112152645A (en) | 2020-12-29 |
| CN112152645B CN112152645B (en) | 2024-05-03 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202872763U (en) * | 2012-09-26 | 2013-04-10 | 深圳市励创微电子有限公司 | Wireless remote control encoding chip and application circuit thereof |
| CN104616474A (en) * | 2015-02-13 | 2015-05-13 | 深圳市励创微电子有限公司 | Wireless remote control encoder chip and application circuit thereof |
| CN109615839A (en) * | 2018-12-18 | 2019-04-12 | 苏州华芯微电子股份有限公司 | A kind of coding chip and remote control device of integrated key power supply |
| CN210609126U (en) * | 2019-06-27 | 2020-05-22 | 苏州锐联芯半导体有限公司 | Fully integrated wireless transmitting chip realized based on CMOS (complementary Metal oxide semiconductor) process and circuit thereof |
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- 2019-06-27 CN CN201910564847.5A patent/CN112152645B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202872763U (en) * | 2012-09-26 | 2013-04-10 | 深圳市励创微电子有限公司 | Wireless remote control encoding chip and application circuit thereof |
| CN104616474A (en) * | 2015-02-13 | 2015-05-13 | 深圳市励创微电子有限公司 | Wireless remote control encoder chip and application circuit thereof |
| CN109615839A (en) * | 2018-12-18 | 2019-04-12 | 苏州华芯微电子股份有限公司 | A kind of coding chip and remote control device of integrated key power supply |
| CN210609126U (en) * | 2019-06-27 | 2020-05-22 | 苏州锐联芯半导体有限公司 | Fully integrated wireless transmitting chip realized based on CMOS (complementary Metal oxide semiconductor) process and circuit thereof |
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