Finished product testing of integrated circuit chips1. Chip introduction74HC138 is a three-channel input, eight-channel output decoder. The 74HC138 decoder accepts 3-bit binary code inputs (A0, A1 and A2). 74HC138 has 3 enable terminals: Eˉ1 and Eˉ2 are a
Design Guidelines for Mixed Signal BoardsMixed-Signal Circuit Layout Basics When digital and analog circuits share the same components on the same board, the layout and routing of the circuit must be methodical.In mixed-signal PCB design, there are specia
RF circuit PCB design processing skillsSince the radio frequency (RF) circuit is a distributed parameter circuit, it is easy to produce skin effect and coupling effect in the actual work of the circuit, so in the actual PCB design, it will be found that t
PCB board device package design specificationFirst, the purpose: This specification stipulates the requirements and precautions in the packaging design of the company's product PCB board components, ensuring that the companyThe uniformity of all PCB boar
In the design of PCB board, PCB anti-ESD design can be realized by layering, proper layout and wiring and installation. During the design process, most design modifications can be limited to adding or subtracting components through prediction.
In PCB circuit design, the coupling between differential routing is generally small, often accounting for only 10~20% of the coupling degree, more or the coupling to the ground, so the main return path of differential routing still exists in the ground pl
Design to Handle RF PCBsA radio frequency (RF) printed circuit board is a very high-speed circuit that operates at frequencies of 100mhz and above, typically between 500mhz and 2ghz. RF pcbs are the backbone of high-tech devices such as wireless networks,
SMT patch introductionSMT patch refers to the abbreviation of a series of process processes processed on the basis of PCB. PCB (Printed Circuit Board) is a printed circuit board.SMT is Surface Mount Technology (Surface Mount Technology) (abbreviation for
About the Working Principle of LED Printed Circuit Board (PCB)As the technology of the world continues to evolve, so does the technology in the field of LEDs, and LED Cases is a field that involves combining two technological approaches in order to come u
Talking about the future development of PCBA manufacturing industryWith the continuous development of the Internet age, electronic products have become an indispensable part of people's life and work. We know that as long as there are electronic products,
Basic knowledge of printed circuit board PCB1. Printed circuit board (PCB)PCB is the abbreviation of Printed Circuit Board (Printed Circuit Board). Also known as printed circuit board, printed circuit board, because it is made by electronic printing, it i
How LED Printed Circuit Boards (PCBs) WorkAs the technology of the world continues to evolve, so does the technology in the field of LEDs, and LED Cases is a field that involves combining two technological approaches in order to come up with other methods
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