CN203490496U - CAN bus controller based on SIP packaging technology - Google Patents
CAN bus controller based on SIP packaging technology Download PDFInfo
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- CN203490496U CN203490496U CN201320600942.4U CN201320600942U CN203490496U CN 203490496 U CN203490496 U CN 203490496U CN 201320600942 U CN201320600942 U CN 201320600942U CN 203490496 U CN203490496 U CN 203490496U
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Abstract
The utility model discloses a CAN bus controller based on SIP packaging technology. The CAN bus controller comprises an MCU, a clock, an LDO, a first CAN isolator, a second CAN isolator, a first CAN transceiver and a second CAN transceiver. The CAN bus controller based on the SIP packaging technology is advantageous in that: the STM32F207XX based on a Cortex<TM>-M3 core is employed as the MCU, the highest working frequency is 120 MHz, 1 MB of FLASH and 128 KB of SRAM, and the CAN bus controller has abundant interfaces: two independent CAN-Bus communication interfaces, eight 12 bit ADC interfaces, two SPI interfaces, one I2C bus interfaces and one RS232 serial port; the CAN bus controller is of small size and light weight, the outline dimension of a control module of the CAN bus controller is 15 mm * 15 mm * 4.0 mm, and the weight of the CAN bus controller is just 5 grams, so the CAN bus controller is convenient to use; and contacts are employed as pins, wires can be flexibly connected, so that a user can determine whether to use the CAN isolators.
Description
Technical field
The utility model relates to communications electronics technical field, is specifically related to a kind of SIP(System In a Package for CAN bus communication circuit) technology.
Background technology
In Aeronautics and Astronautics field, dwindle the volume of separate unit circuit and reduce its weight and can reduce system cost.At number, conduct electricity in road, conventionally the CAN bus control unit adopting is that each discrete component is welded on separately pcb board, under severe rugged environment condition, reliability is poor, and existence design is complicated, volume is large and the problem of Heavy Weight, at aerospace field, is subject to serious restriction.
Utility model content
The purpose of this utility model is to address the above problem, and the CAN bus controller chip based on SIP encapsulation of a kind of integrated a plurality of IC such as MCU controller, CAN buses isolator, CAN bus transceiver and clock circuit is provided.
CAN bus controller based on SIP encapsulation of the present utility model, comprises MCU, clock, LDO, CAN isolator one, CAN isolator two, CAN transceiver one and CAN transceiver two; MCU is connected with LDO with clock respectively, also has two output interfaces and two input interfaces on MCU, and two output interfaces of described MCU are connected with C contact with A contact respectively, and two input interfaces of residing MCU are connected with D contact with B contact respectively; On CAN isolator one, have two input interfaces and two output interfaces, two output interfaces of described CAN isolator one are connected with I contact with E contact respectively, and two input interfaces of described CAN isolator one are connected with J contact with F contact respectively; On CAN isolator two, have two output interfaces and two input interfaces, two output interfaces of described CAN isolator two are connected with K contact with G contact respectively, and two input interfaces of CAN isolator two of living in are connected with L contact with H contact respectively; On CAN transceiver one, have an output interface and an input interface, the output interface of described CAN transceiver one is connected with M contact, and the input interface of described CAN transceiver one is connected with N contact; On CAN transceiver two, have an output interface and an input interface, described CAN transceiver two output interfaces are connected with O contact, and the input interface of described CAN transceiver two is connected with P contact; CAN transceiver one is connected with CAN network one, and CAN transceiver two is connected with CAN network two; On MCU, be also connected with 2 road SPI, 8 road AD, 1 road UART interface, 1 road I2C, 32 road IO and isolation+5V; LDO is also connected with numeral+5V.
The volume of the described CAN bus controller based on SIP encapsulation is 15mm * 15mm * 4.0mm.
Described MCU is the STM32F207XX of Cortex-M3 kernel.
The weight of the described CAN bus controller based on SIP encapsulation is 5g.
In sum, the CAN bus controller tool based on SIP encapsulation provided by the utility model has the following advantages:
1, select STM32F207XX based on Cortex-M3 kernel as MCU, maximum operation frequency 120MHz, 1MB FLASH, 128KB SRAM; Rich interface, 2 tunnel independence CAN-Bus communication interfaces, 8 tunnel 12 bit ADC, 2 road SPI, 1 road I2C bus and 1 road RS232 serial ports.
2, volume is little, lightweight.CAN-SIP bus control module physical dimension is 15mm * 15mm * 4.0mm; Only 5 grams of weight, easy to use.
3, adopt contact as pin, line, can select user and whether uses CAN isolator flexibly.
Accompanying drawing explanation
Fig. 1 is the theory diagram of the total line traffic control of CAN based on SIP encapsulation;
Fig. 2 is the theory diagram of the embodiment of use CAN isolator of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described in detail.
-as depicted in figs. 1 and 2, the CAN bus controller based on SIP encapsulation of the present utility model, comprises MCU, clock, LDO, CAN isolator one, CAN isolator two, CAN transceiver one and CAN transceiver two; MCU is connected with LDO with clock respectively, also has two output interfaces and two input interfaces on MCU, and two output interfaces of described MCU are connected with C contact with A contact respectively, and two input interfaces of residing MCU are connected with D contact with B contact respectively; On CAN isolator one, have two input interfaces and two output interfaces, two output interfaces of described CAN isolator one are connected with I contact with E contact respectively, and two input interfaces of described CAN isolator one are connected with J contact with F contact respectively; On CAN isolator two, have two output interfaces and two input interfaces, two output interfaces of described CAN isolator two are connected with K contact with G contact respectively, and two input interfaces of CAN isolator two of living in are connected with L contact with H contact respectively; On CAN transceiver one, have an output interface and an input interface, the output interface of described CAN transceiver one is connected with M contact, and the input interface of described CAN transceiver one is connected with N contact; On CAN transceiver two, have an output interface and an input interface, described CAN transceiver two output interfaces are connected with O contact, and the input interface of described CAN transceiver two is connected with P contact; CAN transceiver one is connected with CAN network one, and CAN transceiver two is connected with CAN network two; On MCU, be also connected with 2 road SPI, 8 road AD, 1 road UART interface, 1 road I2C, 32 road IO and isolation+5V; LDO is also connected with numeral+5V.The volume of the described CAN bus controller based on SIP encapsulation is 15mm * 15mm * 4.0mm.Described MCU is the STM32F207XX of Cortex-M3 kernel.The weight of the described CAN bus controller based on SIP encapsulation is 5g.A contact is connected with F contact, and B contact is connected with E contact, and C contact is connected with H contact, and D contact is connected with G contact, and I contact is connected with N contact, and J contact is connected with M contact, and K contact is connected with P contact, and L contact is connected with O contact; So in use, between MCU and CAN connector, mutual data all must be through CAN isolator; Because site environment is very complicated, between each node, there is very high common mode voltage, although what CAN bus adopted is differential transfer mode, the ability with certain anti-common mode interference, but when common mode voltage surpasses the limit receiver voltage of CAN driver, CAN driver just cannot normally be worked, and when serious, even can burn chip.Therefore,, in order to adapt to strong interference environment or high performance requirement, must carry out electrical isolation to each communication node of CAN bus.Highly effectively avoided interference, but not necessarily applicable under special circumstances.
Although by reference to the accompanying drawings embodiment of the present utility model is described in detail, should not be construed as the restriction to the protection domain of this patent.In the described scope of claims, the various modifications that those skilled in the art can make without creative work and distortion still belong to the protection domain of this patent.
Claims (4)
1. the CAN bus controller based on SIP encapsulation, is characterized in that: comprise MCU, clock, LDO, CAN isolator one, CAN isolator two, CAN transceiver one and CAN transceiver two; MCU is connected with LDO with clock respectively, also has two output interfaces and two input interfaces on MCU, and two output interfaces of described MCU are connected with C contact with A contact respectively, and described two input interfaces of MCU are connected with D contact with B contact respectively; On CAN isolator one, have two input interfaces and two output interfaces, two output interfaces of described CAN isolator one are connected with I contact with E contact respectively, and two input interfaces of described CAN isolator one are connected with J contact with F contact respectively; On CAN isolator two, have two output interfaces and two input interfaces, two output interfaces of described CAN isolator two are connected with K contact with G contact respectively, and two input interfaces of CAN isolator two of living in are connected with L contact with H contact respectively; On CAN transceiver one, have an output interface and an input interface, the output interface of described CAN transceiver one is connected with M contact, and the input interface of described CAN transceiver one is connected with N contact; On CAN transceiver two, have an output interface and an input interface, described CAN transceiver two output interfaces are connected with O contact, and the input interface of described CAN transceiver two is connected with P contact; CAN transceiver one is connected with CAN network one, and CAN transceiver two is connected with CAN network two; On MCU, be also connected with 2 road SPI, 8 road AD, 1 road UART interface, 1 road I2C, 32 road IO and isolation+5V; LDO is also connected with numeral+5V.
2. the CAN bus controller encapsulating based on SIP according to claim 1, is characterized in that: the volume of the described CAN bus controller based on SIP encapsulation is 15mm * 15mm * 4.0mm.
3. the CAN bus controller encapsulating based on SIP according to claim 1, is characterized in that: described MCU is the STM32F207XX of Cortex-M3 kernel.
4. the CAN bus controller encapsulating based on SIP according to claim 1, is characterized in that: the weight of the described CAN bus controller based on SIP encapsulation is 5g.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320600942.4U CN203490496U (en) | 2013-09-27 | 2013-09-27 | CAN bus controller based on SIP packaging technology |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320600942.4U CN203490496U (en) | 2013-09-27 | 2013-09-27 | CAN bus controller based on SIP packaging technology |
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| CN203490496U true CN203490496U (en) | 2014-03-19 |
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| CN201320600942.4U Expired - Lifetime CN203490496U (en) | 2013-09-27 | 2013-09-27 | CAN bus controller based on SIP packaging technology |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103944631A (en) * | 2014-05-13 | 2014-07-23 | 上海航天电子通讯设备研究所 | Miniature satellite-borne X-band data transmission launcher based on SIP (system in package) technology |
| CN106992777A (en) * | 2017-04-06 | 2017-07-28 | 中国电子科技集团公司第二十四研究所 | Photoelectric-isolated transceiver based on integrative packaging |
-
2013
- 2013-09-27 CN CN201320600942.4U patent/CN203490496U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103944631A (en) * | 2014-05-13 | 2014-07-23 | 上海航天电子通讯设备研究所 | Miniature satellite-borne X-band data transmission launcher based on SIP (system in package) technology |
| CN103944631B (en) * | 2014-05-13 | 2018-01-30 | 上海航天电子通讯设备研究所 | A kind of miniature spaceborne X-band number based on sip technique passes emitter |
| CN106992777A (en) * | 2017-04-06 | 2017-07-28 | 中国电子科技集团公司第二十四研究所 | Photoelectric-isolated transceiver based on integrative packaging |
| CN106992777B (en) * | 2017-04-06 | 2021-04-02 | 中国电子科技集团公司第二十四研究所 | Photoelectric isolation type transceiver based on integrated packaging |
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Granted publication date: 20140319 |
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