58KHzセキュリティアンテナ用EAS AM DSPボードAM1080

梱包・配送について

• 販売単位単品
• パッケージタイプ。 16pcs/ctn, 58*37.5*44cm, 7kgs

製品概要

What is a RF board?

RF is RF current which is a high-frequency AC variable electromagnetic wave. AC with a change of less than 1000 times per second is called low-frequency current, and AC with a change of more than 1000 times is called high-frequency current, and RF is such a high-frequency current. RF circuit refers to a circuit in which the electromagnetic wavelength of the signal is in the same order of magnitude as the size of the circuit or device.

Standard for RF board

• 1. Low power RF board mainly uses standard FR4 material (good insulation characteristics, uniform material, dielectric constant 4,10%).
• 2. In the PCB design of RF board, each component shall be closely arranged to ensure the shortest connection between each component.
• 3. For a mixed signal PCB, the RF part and analog part shall be far away from the digital part (the distance is usually more than 2cm, at least 1cm shall be guaranteed), and the grounding of the digital part shall be separated from the RF part.
• 4. When selecting components working in high-frequency environment, surface mount components should be used as much as possible because surface mount components are generally small and their pins are very short.

RF circuit layout principles

When designing RF layout, the following general principles must be given priority:

• (1) Isolate the high-power RF amplifier (HPA) and low-noise amplifier (LNA) as far as possible, that is, keep the high-power RF transmitting circuit away from the low-power RF receiving circuit;
• (2) Ensure that there is at least one piece of land in the high-power area on the PCB. It is best that there is no via on it. Of course, the larger the copper foil area, the better;
• (3) Decoupling of circuit and power supply is also very important;
• (4) RF output usually needs to be far away from RF input;
• (5) Sensitive analog signals should be as far away from high-speed digital signals and RF signals as possible.

What are DSP boards?

DSP boards or Digital Signal Processor computer boards are at the heart of implementing high performance industrial systems. They collect and process digital data from many sources and distribute the results to other elements of the system. There are three main sources of data in the actual system: signals (input and output from the DSP processor), messages communicating with the system controller, and messages communicating with other DSP boards. important features of DSP boards include fast processors and good communication channels, because DSP boards need to collect and distribute data from many different sources.
Computer backplane or bus options for DSP boards include PCI, ISA or EISA, PCMCIA, PC/104, Mac PCI, SUN Sbus, PMC bus, PXI bus, Multibus, STD bus, VME bus, VXI or MXI bus, and DT connect I and II interfaces. PCI is a local bus system designed for high-end computer systems. Native bus systems. ISA is a standard for I/O buses that existed back in 1984 when IBM became the standard. PCMCIA devices (PC cards) are credit card-sized peripherals used primarily in notebook computers. the name PC/104 comes from the desktop personal computers (PCs) designed by IBM and the number of pins (104) used to connect the cards together. Mac PCI is a native bus standard developed by Intel. SBus boards were designed by Sun in 1989 and are the standard I/O interconnect for Sun computers, usually running under the Solaris or SunOS style of UNIX operating systems. the PMC bus is actually a form factor, not a bus – PXI is a superset of CompactPCI, adding timing and triggering capabilities, imposing requirements for recording environmental testing, and creating a standard Windows-based software framework. The STD bus was originally designed for factory and industrial environments because of its rugged design and small size. The VME bus is a 32-bit bus used for industrial, commercial and military applications. Motorola developed the VME standard with other companies in the late 1970’s. DT connect I and II are DT connect interfaces for data conversion.

Important processor or DSP performance specifications to consider for DSP boards include processor count, clock speed, floating point performance, integer performance, operation, maximum addressable memory, and operating temperature. General features and options to consider when looking for a DSP board include real-time clock, interrupt controller, memory management unit, dual-port memory, and direct memory access. Communication options include serial I/O ports, parallel I/O ports, on-board A/D converters, and on-board D/A converters. Some DSP boards can accept daughter boards and some DSP boards are daughter boards. An important environmental parameter to consider when searching for a DSP board is the operating temperature.

Q：商社ですか、メーカーですか？
A: 私達は浙江の 8 年間以上 EAS のラベルの製造業者、私達を訪問する歓迎です。
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A: どのような量でもあなたの順序のために受諾可能です。また、数量が多い場合は価格交渉も可能です。
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A: はい、サンプルのほとんどは無料ですが、貨物コストをカバーしません。 
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A: 私達は細部の品目番号、量、色を参照し、私達の最もよい価格を引用します。
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A: gerealでは、支払の後の7-15日。
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A：あなたの詳細な順序に従って、一般的な順序は、事前に100% T / Tです。
Q：アクティリティを選ぶ理由は何ですか？何かメリットはありますか？ 
A:

• 1.相互利益: 私達は工場です、私達の価格は同じ質でより安いです。 
• 2.ミックスオーダー私達は組合せの順序、別のモデルおよび少しの順序を受け入れます。 
• 3.アフターサービス。いつでもお客様とコンタクトが取れるように

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