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In recent years, the vigorous development of the wireless communication market, especially the rise of mobile phones and wireless Internet access services, has caused higher demands on wireless communication technologies. Small size, light weight, low power consumption and low cost are the development direction of wireless communication terminals, and radio frequency integrated circuit technology (RFIC) plays a key role in it. The emergence and development of RFIC have put forward new...
Magma® Design Automation Co., Ltd. recently introduced the next generation integrated circuit (IC) implementation solution, Talus® 1.2, which can significantly shorten the design cycle of a system-on-chip (SoC). This new Talus system allows engineers to combine crosstalk avoidance, advanced on-chip variation (AOCV) and multi-mode multi-angle (MMMC) analysis functions to achieve 1 to 1.5 million units per day on large designs or circuit modules with 200 to 500 units the design of. Talus has...
TriQuint Semiconductor Corporation announced the launch of the first new high-efficiency, green and environmentally friendly 3G / 4G wireless base station TriPower ™ RF integrated circuit series. TriPower devices address the two major challenges of network operators' rapidly increasing high bandwidth requirements for consumer smartphones and similar products. TriPower reduces the power required to activate network base station amplifiers, while operators can more easily increase network...
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...
Application of the new narrowband FM receiver integrated circuit MC3362 / MC3363 / MC3364 / MC3367 The appearance of the MC3362 series of single-chip receiver circuits has greatly promoted the innovation of mobile communication stations. The common characteristics of these integrated circuit chips are: strong function, monolithic, low voltage, low power consumption, and high sensitivity. The new low-power narrow-band FM monolithic receiver circuit MC3362 already includes a front-end circuit in...
The integrated quadrature discriminator diagram is a TV soundtrack integrated circuit, which includes limiting intermediate amplifier (V1, V2; V4, V5; V7, V8 are three-stage differential pair amplifiers, V3, V6 and V9 are three emitters Follower), internal voltage regulator (VD1 ~ VD5, V10) and frequency discrimination circuit three parts. In the above circuit, adjusting L, C, and C1 can change the loop resonance frequency, as long as it meets Integrated quadrature discriminator circuit
Switched-capacitor filters (SCFs) are renowned for ease of use. They are accurate, require no external components, and maintain a predictable response over all specified operaTIng condiTIons. For integrated-circuit SCFs, their TIghtly matched and trimmed internal capacitors produce a fixed frequency and phase response that is proporTIonal solely to the external clock frequency. To construct a notch (band-reject) or passband response, the more flexible universal filter is needed. Universal...
Abstract: Residual phase noise from local oscillators (LO) can be degraded by addiTIve noise of on-chip local oscillator drivers / buffers in integrated circuit mixers. Reciprocal mixing of strong RF signals with the LO noise degrades the receiver sensiTIvity. SpecificaTIon and evaluaTIon of the LO noise degradation in integrated mixers will enable a system designer to compute the loss of sensitivity in the receiver. IntroductionCellular base station receivers work in the presence of high level...
2W integrated circuit audio amplifier circuit
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 (bottom) analysis of voltage follower input and output error analysis Solve the effect of power amplifier on emi Follow WeChat Interesting and informative...
In-depth analysis of the first-level cache and second-level cache of the technical zone CPU eMMC mass burning dilemma, do you really know? Isolation flyback and non-isolated BUCK application design plan Schottky barrier diode selection and application guide How to use Altium in program design Designer puzzle? Follow WeChat Interesting and informative information and technical dry goods Download Audiophile APP Create your own personal electronic circle Follow the audiophile class Lock the latest...
2002, Issue 6, Category: Electronic Products and Devices As we all know, in the wireless remote control transmitting and receiving circuit system, there are many radio frequency receiving circuits composed of discrete components, and the circuit board wiring is more complicated. Moreover, the frequency is high, the influence of the distributed parameters is also greater, and the circuit debugging is difficult. The radio frequency receiving integrated circuit can overcome the above shortcomings....
Technical area detailed analysis of Doherty power amplifier design load traction principle (top) detailed analysis of Doherty power amplifier design how to improve efficiency (bottom) analysis of voltage follower input and output error analysis Solve the effect of power amplifier on emi Follow WeChat Interesting and informative information and technical dry goods Download Audiophile APP Create your own personal electronic circle Follow the audiophile class Lock the latest course activities and...
Abstract: RI-R6C-001A chip is an RF transceiver produced by Texas Instruments, which can realize the reading of ISO15693 protocol electronic tags. The chip contains three parts: receiving, transmitting and controlling interface. The article introduces the structure, principle and characteristics of RI-R6C-001A, and gives typical application circuits. 1 Overview Electronic tags are the most advanced non-contact sensing technology nowadays. The RI-R6C-001A chip is an inexpensive non-contact...
1 Overview Frequency synthesis technology is a new technology in the development of modern radio technology and one of the key technologies in modern communication systems. It usually uses a crystal or a small number of crystals to form a standard frequency source, and then generates various required frequencies through a synthesis method. signal. These frequency signals have the same frequency stability and accuracy as standard frequency sources. Circuits constructed using this technique are...
UM3758 is a new type monolithic codec integrated circuit.
According to the website of the Ministry of Science and Technology, in 2014, a special business retreat for "Very Large Scale Integrated Circuit Manufacturing Equipment and Complete Processes" was held in Beijing. At the meeting, the general group proposed a special project. Since its implementation, China has made some breakthroughs in the fields of high-end equipment for integrated circuits, complete sets of processes, key materials, packaging and testing. Mass purchase, successful...
Various power electronic devices include a pulse generating part that provides control pulses for power electronic devices. Traditional pulse generation circuits based on customized small-scale logic devices have many shortcomings such as complex structure, huge volume, low accuracy, single function and inability to monitor directly. Subsequently, the microprocessor provided a software implementation method for the pulse generation of power electronic equipment, but it was not a good solution....
Article number Wu Zhonghua Chaoyang Vocational University. Chaoyangcheng. The phase shift control pulse is composed of power amplification and other parts. And there are perfect protection measures. The required peripheral components are few and the scope of application is wide. It is an integrated trigger with high performance-price ratio. It can be seen from the working principle and structure of Gong 1ding 785 that 785 is composed of voltage distribution synchronous zero-crossing detection...
1 = TimesNewRoman1 State Key Laboratory of Application Specific Integrated Circuits and Systems, Fudan University, Shanghai 200433, China 2 Yuanshi 2 Microtechnology Center, 109107, Germany 3 Institute of Microelectronics, Tsinghua University, Beijing 100084, China 4, 1. Reliable Laboratory of Micro Devices and Equipment, Institute of Sexuality and Micro Integration, 209126, the potential advantages of optical interconnection on German road chips. Introduced the new research progress of the...
The semiconductor production process is a very complicated production process, during which many unpredictable factors are at work. Taking environmental factors as an example, the factors that affect the yield are air cleanliness, temperature, humidity and noise. Through the analysis of the process parameters of the previous semiconductor production line, it can be seen that the changes of the semiconductor process parameters show a strong nonlinearity and uncertainty. It is difficult to obtain...
2 = SimSun process and related process questions, discussed the role of barrier materials and selection principles, and also made a brief progress on the research of low materials. I Introduction With the development of ultra-large integrated circuits, 151, the packaging density continues to increase The circuit elements are getting denser and denser, which leads to a continuous decrease in the cross-sectional area and line spacing of 181 metal interconnects. The increased interconnect...
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