Electronics Forum | Electrical Engineering Forum - PCBGOGO

z****lon

How to solve the "signal integrity" problem in PCB design?

1633 0 Aug 12.2024, 16:31:48

Answer:Signal integrity issues affect the circuit boards performance and data transmissions reliability. Here are some ways to solve signal integrity issues:High-speed signal routing: Design dedicated routing channels for high-speed signals and minimize the length and turns of signal lines.Impedance matching: Make sure the impedance of the signal line matches the impedance of the PCB to reduce signal reflection.Differential signal: Use differential signal line pairs to improve the signals anti-interference ability.Reduce crosstalk: Keep high-speed signal lines away from low-frequency signal lines and use ground isolation to reduce crosstalk.Terminal resistance: Add appropriate terminal resistance at the end of the signal line to avoid signal reflection and distortion.

c****oop

When designing PCB, how to consider electromagnetic compatibility, reduce radiation and susceptibility

1550 0 Aug 11.2023, 15:19:56

Lorsquil sagit de prendre en compte la compatibilité électromagnétique (CEM) dans la conception des PCB pour réduire les problèmes de rayonnement et de susceptibilité afin de répondre aux normes CEM strictes, nous devons réfléchir attentivement à une série de stratégies et de pratiques, veuillez aider à donner des conseils et des orientations

z****lon

Discussion on how to process high-speed signals and avoid interference in PCB embedded systems

1561 0 Aug 11.2023, 13:33:08

Hello everyone, recently I am designing a PCB embedded system, which involves some high-speed signal processing, but I am a little confused about signal interference and timing. I would like to ask my predecessors, what is the best way to effectively process high-speed signals while avoiding signal interference and timing problems?

u****ule

How do remote control toys realize remote operation?

2233 1 Nov 03.2022, 13:50:39

In life, toy products are a huge market, and remote control toys occupy a very large proportion in the toy market, and remote control toys are inseparable from one thing, that is, a wireless data transmission module to realize wireless remote control.

z****ule

What does the future of the Internet of Things look like?

1972 1 Oct 27.2022, 11:49:46

Over the past few years, we've seen the Internet of Things and its limitless potential. With the digital transformation rapidly accelerating as the 2020 pandemic intensifies, the IoT looks set to deepen its role in our lives and industries thanks to 5G and faster WiFi, as well as improved connectivity with artificial intelligence and machine learning. The foundation. While 5G will open up new possibilities for businesses with gigabit-speed connections, data speed isn't everything. Ultra-low latency is another feature of 5G networks that is expected to change the way we work and live.

z****lon

What tests are required for PCBA circuit boards?

2212 1 Oct 24.2022, 17:13:01

PCB and PCBA are the cornerstones of electronic products. In order to improve the yield rate, circuit board manufacturers spare no effort to improve the board manufacturing process, and also use various professional testing instruments to find product defects.The English of PCB is the abbreviation of Printed Circuit Board, which is often called bare board or bare board in the industry. It is an important component, a support for electronic components, and a carrier for electrical connection of electronic components.PCBA, even if PCB+components are assembled, refers to the circuit board obtained by the PCB light board after SMT loading and then through DIP plug-in. Generally speaking, it is a circuit board after installing components such as resistors, integrated circuits, and capacitors.SMT surface mount technology mainly uses the placement machine to mount some tiny parts on the PCB board. The production process is: PCB board positioning, printing solder paste, placement machine place...

E****ech

How to transmit data from an Arduino Wirelessly

3435 0 Jul 24.2020, 18:23:14

Arduino boards embody multiple peripherals for communication with other devices. They include UART, I2C USB, and SP1. Wired communication has however proven to be difficult mostly so where the distance between the sender and receiver is considerable. As such, wireless communication comes in handy. Wireless communication is also critical in incorporating Arduino boards into the IoT environment. We have compiled several modules you can use to send data from an Arduino board to another Arduino or to the web.Wireless data transmissionNRF24L01The NRF244L01 transceiver module uses a 2.4GHz ban. It offers baud rates of between 250kbs and 2Mbps. In an open space and with lower baud rates, its range can stretch up to 100 meters. The NRF24LO1 can use 125 different channels which thus is able to have a network of 12 independent modems in one place. Each of the channels can have up to addresses or rather each of the units is able to communicate with 6 other units simultaneously.The NRF24L01 co...

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Bootloader update on acura8m

10097 0 Apr 12.2020, 04:55:16

Hello experts, I am unable to update the bootloader via OTA. I am using acura8m with Android 9 this has an iMX8m NXP chipset.Regards

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FPGA board form factor

3080 1 Mar 18.2020, 18:09:05

I'm working on a GW2A-18 FPGA module for integration and prototyping. Which form factor do you think it's the best if you are looking for an FPGA module? I'm aiming at development prototyping and very low volume prototype production runs. FYI, the design features are as follow: 1. 21k 4-LUTs+16k FFs 2. 42Kb distributed SRAM+828Kb block SRAM+64Mb SDRAM 3. 48 M18 DSPs (24 DSP slices, each can be configured as dual M18 or single M36, both come with MAC/ALU options) 4. 2 PLLs+4 DLLs with on board 12MHz clock 5. 34 IOs in 4 1.2V~3.3V banks+31 IOs in 3.3V banks, most IOs are true LVDS capable 6. On board SPI FLASH+FTDI downloader+FTDI UART 7. Supports Cortex M1, RiscV and ZPU 8. On board PMIC accepting single 3.5V~5.5V input with input voltage sensor 9. On chip USB HS PHY IP (under development, using DLL, PLL and IO gearbox), tentative 10. A few LEDs for heart beat and debugging, maybe one or two micro buttons As for form factor, I intentionally left out castellated hole option as I simply d...

X****Liu

Adding CCFL light or LED backlight to a 6 digit/ 7 segment LCD display

3082 1 Mar 18.2020, 18:07:14

Hello, Is possible to add CCFL light or LED backlight to a 6 digit/7 segment LCD display which has no backlight from the beginning? I have seen some article about doing that many years ago (could not find now...) by removing the reflective shield layer from the backside , not sure if I should separate that shield from a possible layer (polarization ?) between it and the LCD glass or other consideration that I should be aware off. ATtached 2 images from the LCD display Many thanks in advance!.

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