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The University of Arkansas recently developed a silicon carbide high-temperature integrated circuit. The circuit chip can still work normally at a high temperature of about 350 ° C, which greatly improves the processor, drive system, controller and other components in power electronic equipment, automotive and aerospace equipment. The performance of digital circuits. The research was supported by the National Science Foundation (NSF). Silicon carbide wafers containing 1,000 independent circuit...
The power management design of the Bluetooth headset requires few peripheral components and high integration, and also meets the requirements of the Bluetooth chip for load response and noise suppression. Wireless stereo headphones have become popular products. As more and more mobile phones support Bluetooth, Bluetooth headsets have become an indispensable option for mobile phones. At the same time, with the introduction of stereo Bluetooth headsets that support MP3 playback, Bluetooth...
Nordic Semiconductor has announced that Nordic's new nRF2460 audio streaming integrated circuit is immediately available. This IC is uniquely optimized for power consumption and is used in cost-sensitive battery-powered mono (single-channel) wireless audio systems, such as wireless microphones (such as home karaoke and conferences), and subwoofers (home theater) , Musical instruments (wireless audio adapters) and games (such as singing competition microphones). Nordic nRF2460 was developed...
Working Principle and Application of LM567 Universal Tone Decoder Integrated Circuit 567 is a general-purpose tone decoder. It provides a saturation transistor to ground switch when the input signal is in the passband. The circuit consists of I and Q detectors. The voltage-controlled oscillator drives the oscillator to determine the center frequency of the decoder. Independently set the center frequency bandwidth and output delay with external components. Mainly used for oscillation,...
PT2262 / 2272 codec integrated circuit principle introduction Introduction of codec chip PT2262 / PT2272 chip principle PT2262 / 2272 is a low-power low-cost general-purpose codec circuit manufactured by Taiwan Pucheng Company, which is manufactured by CMOS process. State address terminal pins (floating, connected to high level, low level), any combination can provide 531441 address code, PT2262 can have up to 6 bits (D0-D5) data terminal pins, set address code and data The code is serially...
The integrated circuit of the integrated subwoofer amplifier is fully integrated, which is free of debugging and easy to manufacture, and is therefore recommended. Technical area detailed analysis of Doherty power amplifier design load traction principle (top) detailed analysis of Doherty power amplifier design how to improve efficiency (lower) voltage follower input and output error analysis lm386 power amplifier energization will produce noise causes and treatment methods analysis class d...
Technical area detailed analysis of Doherty power amplifier design load traction principle (top) detailed analysis of Doherty power amplifier design how to improve efficiency (lower) voltage follower input and output error analysis lm386 power amplifier energization will produce noise causes and treatment methods analysis class d Solve the effect of power amplifier on emi Follow WeChat Interesting and informative information and technical dry goods Download Audiophile APP Create your own...
In the past few decades, Moore's Law has guided the development of the integrated circuit industry, and the chip manufacturing process has also been advanced step by step. But in recent years, the chip shrinking cycle has gradually slowed down due to the limitations of silicon materials and equipment. In other words, Moore's Law is invalid. Paolo Gargini, president of the Global Semiconductor Industry R & D Planning Blueprint Association, also said in the early years, according to...
1. Adder Figure Z0613 The circuit has the function of adding input signals. According to the basic characteristics of the ideal op amp: Obviously, the circuit can add input signals to a certain proportion, so it is called an adder. When R1 = R2 = R3 = Rf, the above formula is simplified to UO = － (Ui1 + Ui2 + Ui3) Second, the differentiator The circuit is shown in Z0614, according to U + = U- and Ii = 0: U + = U- = 0 iC = if because, Therefore: It can be seen that the output voltage is...
Shanghai Haozhuang Instrument Co., Ltd. developed the LNB brand biochemical incubator, which is energy-saving and environmentally friendly, leading the country. The biochemical incubator has a two-way temperature regulation system of refrigeration and heating, and the temperature can be controlled. It is a scientific research institution, college, production unit or department laboratory in the industries of biology, genetic engineering, medicine, health and epidemic prevention, environmental...
A few days ago, the Shanghai Institute of Microsystems and Information Technology, Chinese Academy of Sciences, the Internet of Things System Technology Laboratory used a 65nm standard Si CMOS process, and a single chip generated a millimeter wave signal above 100GHz. The French National Laboratory IEMN (Institute of Electronics, Microelectronics and Nano-electronics ) Test, the center frequency reaches 150GHz. With the further narrowing of the line width of the CMOS device process line, the...
Features: · The built-in component library can be expanded and upgraded · Accurate and reliable simulation test · Comprehensive test is more accurate · Display the diagnostic information of the faulty pin · Search for unknown model components · Component replacement query · Can communicate and test with PC Device expansion programming software · Test sockets with different packages can be selected · Battery and DC power supply Comprehensive testing of analog devices During the test, apply the...
Maximum number of test pins: 256 Scope of application: Component testing-suitable for all types of integrated circuit testing and component screening testing circuit board testing-suitable for various circuit board testing (additional test cables and various packaged test clips) Test principle (vi curve test): Apply a safe low-power scan drive signal to each pin of the component to generate an impedance characteristic map for comparison and storage. The device under test is compared with the...
Cyclic test-more accurate determination of intermittent faulty components Using unconditional or conditional cyclic test mode, it can find intermittent fault points and faults caused by temperature, and display the diagnostic information of a single pin. Introduction: The measurable components include TTL series, CMOS, memory, large-scale integrated circuits, interface chips and other devices with up to 40 pins. There are constantly expanding thousands of component libraries. Features: · Simple...
British ABI Digital Integrated Circuit Tester ChipMaster The measurable components include TTL series, CMOS, memory, large-scale integrated circuits, interface chips and other devices with up to 40 pins. There are constantly expanding thousands of component libraries, which can be expanded and upgraded by themselves. Professional CompactLink programming communication software (optional accessory)
British ABI Analog Integrated Circuit Tester LinearMaster Features: · The built-in component library can be expanded and upgraded · Accurate and reliable simulation test · Comprehensive test is more accurate · Display the diagnostic information of the faulty pin · Search for unknown model components · Component replacement query · Can communicate and test with PC Device expansion programming software · Test sockets with different packages can be selected · Battery and DC power supply
For the actual use of operational amplifiers, what is important is not to understand the internal circuit of the integrated operational amplifier, but to understand its characteristics, parameters and actual connection methods. The main parameters of the operational amplifier are: (1) Input offset voltage When the input voltage and the external resistance of the input terminal are 0Ω, in order to make the operational amplifier output offset voltage 0V, a DC compensation voltage must be added...
In the purchase of integrated kitchen, in addition to look at the appearance, function, quotes outside, but also the brand, while US large integrated kitchen not only awareness, but also the number of models, therefore, become the people's choice, then select American and integrated kitchen Is the brand good? Let's introduce it in detail: How about the integrated stove selection of the Meida brand and the price of the integrated stove? Will the integrated stove choose the US brand :...
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The epitaxial wafer manufacturer TSMC has gradually become clear in the layout of LEDs. On the (15th), it announced the BCD process for the production of LED drivers. It can produce high-voltage integrated LED driver integrated circuit products for customers and reduce the system's zero with high integration. The number of components. TSMC said that this new BCD process features a working voltage range of 12 volts to 60 volts to support a wide range of LED applications, including backlights for...
D1379C is an integrated circuit for black and white TV line and field scanning . Its main functions are: synchronous separation, AFC, line oscillation and line pre-excitation, frame oscillation and output, boost circuit, etc. Different from D1031 It integrates AFC, line oscillation, and line pre-excitation into the circuit, making the external components less. The application example is shown in the figure. This article refers to the address: http:// The application principle of D1379C is: the...
D2611 is a single-row low-frequency amplifier circuit. When DC 16V power supply is applied (the speaker impedance is 8 ohms), the undistorted power of the audio output can reach 1.5 watts. The input impedance is up to 45K~2M. Practical examples are shown in the figure. This article refers to the address: http://
Photocoupler The LA7840 is a field deflection output integrated circuit produced by Sanyo. The circuit uses a DC-coupled input. The video signal processing circuit controlled by the bus, such as the LA76810 output field sawtooth voltage, is amplified by the LA7840 to directly drive the field deflection coil. The internal circuit of LA7840 includes sawtooth voltage operational amplifier, overheat protection circuit, pump power supply circuit and so on. Operating current is 1.8A for small screen...
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