Four major application categories leverage the analog chip market[Copy link]
Editor's note: In recent years, analog chip companies have not hesitated because of the advent of the digital age . On the contrary, with the demand for analog chips from digital products, analog chips have been widely used. Portable products, mobile phones, flat-panel TVs and automotive electronics have become the main battlefields for analog chip applications.
Special guests
Wang Jian, Director of Analog Product Sales, TI China Wang Ruixing, Vice President of Fairchild Technology Marketing, Asia Pacific John Crawford, Product Marketing Manager, Wolfson Patrick Boulaud, Director of Power and Analog Devices Division, ST Greater China Huang Hanji, Director of Power Management Product Marketing, Asia Pacific, NS He Xianbin, General Manager of NS South China Business
Portable products are the main application
Wang Jian Analog circuit products can be divided into two major parts, namely standard analog products and application-specific analog products (ASSP). The sales of these two categories of products basically maintain a ratio of 40%:60% . Application areas targeted by application-specific analog chip products are applications with relatively large orders of magnitude, such as mobile phones, DVDs, color TVs and other markets, and the general order of magnitude is more than 100 million pieces. Such products have a relatively concentrated market application, high product integration and are relatively fixed, which is very suitable for the use of dedicated analog chip products. However, for products that are in a state of change, such as PMP, Bluetooth headsets, IP phones, etc., due to the evolving standards, merchants hope to add more functions to the products. At this time, there is no way for analog chips to provide solutions with all functions using dedicated chips, and they can only be supplemented with standard analog chips, but the integration is a major development trend. Wang Ruixing The current development trend of analog ICs seems to be similar to the trend of portable digital circuits— the integration is getting higher and higher, while the size is getting smaller. In addition, portable products require more "communication" between analog ICs. For example, the latest generation of computers drives the CPU platform by setting the output voltage range through a voltage marker to optimize performance. Therefore, the next step of development will be digital circuits with communication functions, which will help to achieve true digital power in the original analog world . Looking to the future, it is expected that more digital functions will be added to traditional analog chips, including multiple functions in a single device. These highly integrated chips will require advanced process technology and CMOS technology that can cover various power analog requirements. Analog devices help to bring together various functions, so they play an important role in portable applications . The market demand for more functions in portable application designs such as mobile phones has been driving the addition of more functions to analog switches. For example, designers sometimes use analog switches to add new functions to existing designs, which can shorten the redesign time and provide more functions to consumers. The increase in integration will continue to be the development trend of portable applications, especially for power analog devices. All control functions and power conversion functions will be integrated into the power management unit (PMU), which effectively saves space in portable applications and eventually adds some logic functions. What we expect is not pure analog devices, but a mixed-signal type of product. Fairchild Semiconductor is developing an analog switch series that integrates the ability to convert audio, video, UART and high-speed USB into a single switch, providing great flexibility for portable product designers to help them guide completely different signals from a single connector to different functional modules within the device without affecting the integrity of the signal. Crawford The rapid development of portable products has not only promoted the rapid development of digital circuit technology, but also further promoted the development of analog chip technology and market, promoting the integration of more analog and mixed-signal functions. Audio has become a fundamental feature of portable electronic products, including wireless phones, laptops and tablets, smart phones , digital cameras and personal media players. It has also become a key feature that differentiators in portable electronic products. System designers are always looking to achieve the best audio quality while keeping power consumption to a minimum, minimizing battery size and maximizing battery life. This has led to the development of analog chips towards newer technologies and higher levels of integration . Mixed signal and analog technology have also evolved in different directions for different applications . For example, in MP3 players, system designers need to consider audio quality, power consumption and size. Audio quality is the primary factor, as it is an important feature that consumers and viewers look for when choosing a player. Power consumption is the key to long battery life in any portable product. Package size is also important, as the final application size is also small. One of Wolfson's strengths is integrating many functions into a small package. Due to the limited printed circuit board space in MP3 players and mobile phones, integrating multiple functions into a small device can make the design simpler. Boulaud Analog ICs, like digital ICs, are showing a trend of higher integration and smaller size. They integrate more power management functions, which essentially solve the problem of power leakage. The increasing multimedia processing functions will generate a continuously growing demand for peripheral analog ICs. Chip manufacturers will focus more on the development of core product functions. Furthermore, integrated products may eventually appear, but it is not realistic to achieve them in the short term because we are still in the early stages of highly integrated products. Huang Hanji AC-to-DC power management technology that meets environmental requirements is an indispensable technology for portable electronic products. Most customers hope that the power supply in standby mode can be reduced to 0.5W
-1.0W or below. NS's LM5021 chip can reduce the power supply in standby mode to 0.3W. For electronic product manufacturers, this advantage is very important because it can meet the requirements of low-power operation. He Xianbin The trend of portable product power management technology is to develop in the direction of power management and system integration . For a long time, processor suppliers and power management chip manufacturers have developed their own technologies, but the improvement of traditional technologies has always had its limitations. The utilization efficiency of battery energy has almost reached its limit, and the improvement in the future will not be large. To seek new breakthroughs in efficiency, it is necessary to change the traditional thinking and adopt a new method to comprehensively consider the power requirements of the entire system and use intelligent power management chips to manage the performance and power consumption of the system.
Mobile phone power saving has become a top priority
Wang Jian The power saving of mobile phones is not entirely determined by analog chips. Taking the power management of mobile phones as an example, the most important thing for mobile phone power management is the problem of power conversion efficiency. How to maximize the use of the power in the mobile phone is an important topic. In the mobile phone solution, the mobile phone voltage in most international manufacturers' solutions is adjustable. When the power supply voltage is low, the CPU runs slower, which can achieve the purpose of power saving. This is determined by the functions and tasks that the mobile phone needs to handle . Analog chips can provide such a function to achieve such tasks. Analog chips can change digital voltages through software and some interfaces. In the overall solution of the mobile phone, how to adjust the interface function, how to adjust the software, and when to turn off certain voltages are controlled by the CPU. Therefore, understanding the overall system and controlling the software are also very important. At present, some digital interfaces are integrated in the power management chips of handheld devices for high-end applications for adjustment. Wang Ruixing In order to save energy more effectively in 3G mobile phones, we expect that the topology dedicated to the power management unit (PMU) will change. Most linear regulators will be replaced by switch-type regulators, such as buck, boost or buck/boost converters, to achieve higher efficiency. The baseband processor will need an online voltage programming function so that when the system is idle/standby, the baseband processor can consume lower power as the core power supply voltage is reduced , and the core voltage can be changed according to the operating speed of the baseband processor. This solution is suitable for wireless radio frequency (RF) power amplifier (RFPA) applications. Powering the power amplifier from a programmable DC-DC converter will provide maximum efficiency for the power amplifier. The DC-DC converter is expected to be integrated with the PMU or integrated into the RFPA module. Fairchild's analog switches have extremely low current (<1uA) over the entire operating voltage range of the device . By thoroughly understanding the customer's application requirements, we are able to provide leading switch products that meet the needs in terms of bandwidth and signal eye diagram compliance, which do not require the use of power-consuming charge pumps and level shift converters. In addition to power management technology, Fairchild's latest uSerDes products are the first to introduce burst mode functions in mobile phones to send signals between the display/camera and the processor. Using this technology, power consumption is reduced by 1/5 compared to existing mobile phone SerDes products without affecting data throughput. This technology helps to achieve higher performance and functions while minimizing the impact on power. Crawford The launch of 3G networks is expected to increase demand for multimedia mobile phones that will be able to provide a wide range of rich content voice and images. Wolfson expects the industry and market demand for these phones to reach 300 million units in 2007. Wolfson will benefit greatly from this rapid growth by successfully joining many designs in the industry . The 3G mobile phone market will require more flexible analog solutions that integrate high-quality audio performance and extended mixing capabilities while also requiring very low power consumption. This will support new application modes for mobile phones, such as starting normal phone functions while continuing to listen to MP3 and FM radio , and enabling audio playback during a call. Other modes include karaoke functions during voice calls, comprehensive mixing capabilities with headphones, and recording using the I2S format. Boulaud In the development of energy-saving technologies for 3G mobile phones, ST replaced linear regulators with switching regulators , replaced NTC temperature sensors with active temperature sensors, and invested in fuel cell technology. Huang Hanji NS specifically offers a series of intelligent DC/DC converters called Power Supply Amplifier Systems (SuPA) for portable electronic products . CDMA/WCDMA and other mobile phones generally use linear power amplifiers. This linearity makes these mobile phones consume more power than GSM /GPRS mobile phones. SuPA can be combined with a power detector (such as NS's LMV228 low-voltage amplifier ) to provide dynamic voltage scaling (DVS) for the power amplifier , so that even if the output requirements of the CDMA/WCDMA mobile phone remain unchanged, the power supply system can reduce the power supply accordingly to save energy. Portable electronic products using this configuration can also significantly extend their battery life. He Xianbin NS's series of audio subsystems feature digital audio interfaces and Class D power amplifiers to meet customer requirements in this regard. The biggest challenge facing audio system designers today is how to provide an ideal interface for analog and digital signal paths. In addition, they also need to minimize the number of external components and reduce the area of the circuit board, while also taking into account the acoustic performance , heat dissipation and power consumption to extend battery life. Since the new generation of mobile phones must save power, NS has launched a series of high-efficiency Class D amplifiers and Class D power amplifiers that do not require additional filters.
王 剑 汽车电子领域中，芯片市场的重点在于发动机控制等数字芯片产 品，TI在汽车电子市场中，数字芯片和模拟芯片均有产品供应，全球 Most of the top ten automotive electronics manufacturers use TI's automotive electronic chip products. The requirements for analog products in automotive electronics are mainly in the initial installation market and the aftermarket. The initial installation market is more important. The vehicle manufacturer will be responsible for all products in the car. Any electronic product failure in the consumer's car needs to be maintained by the merchant, which is also an important reason for the long research and development cycle of the whole vehicle. The aftermarket is mostly the personal behavior of consumers. It takes about two and a half to three years to develop an automotive electronic product. In addition, the reliability certification of a chip product by the vehicle manufacturer takes a long time and the certification fee is very high. Chip suppliers in the automotive electronics field need to pass a series of standard certifications exclusive to the automotive market, so the life cycle of automotive electronic products is generally long. Wang Ruixing Power and analog functions are increasingly used in automobiles, and their proportion is also increasing. The main driving force is that in current and future cars , the options for passenger comfort and convenience have increased significantly. Options such as heated seats require a lot of energy support and power management; advanced braking and handling systems improve safety and comfort, but also require power and analog control functions to operate properly; and previously mechanical systems have gradually shifted to electronic systems. The power steering system is an example, which has changed from a traditional belt drive to an electric motor drive; the emergence of some new propulsion systems, such as hybrid vehicles, has greatly increased power requirements due to the introduction of high-voltage inverters, DC-DC converters, and complex motor management products. These new requirements have driven power device suppliers to work hard to develop module and chip solutions with power and analog functions that can provide system-level value. These include power steering modules with power MOSFETs and analog control devices; complete coil switch (switch on coil) ignition products integrated in the coil with IGBTs, analog sensors and communication functions, and complete DC-DC converters up to 300V integrated in a single package or module. These solutions must be able to adapt to the automotive environment, meet the reliability requirements of zero defect rates, and operate at high temperatures and harsh conditions. Crawford As the degree of electronicization of automobiles continues to increase, analog chips have a bright future in the automotive electronics market . Wolfson is one of the world's leading integrated circuit suppliers, with our creative design skills to meet the automotive market's evolving needs for consumer in-car infotainment solutions . Wolfson's audio digital-to-analog converters (DACs), analog-to-digital converters (ADCs), codecs (CODECs) and amplifiers are used in audio entertainment systems, driver information systems and telematics systems, and are an important part of the future in-car entertainment market. Our rigorous testing and evaluation programs ensure that they meet the manufacturers' demanding environmental and reliability targets. They are all compliant with the standards contained in the Automotive Electronics Council's AEC-Q100 and AEC-Q003 systems, which are stringent quality certification systems for integrated circuits . Wolfson's quality system meets the requirements of ISO9001, and all our outsourced suppliers use quality systems such as QS-9000 and ISO/TS16949. As a world-class company, we have the skills and resources to design and supply products that meet the needs of automotive entertainment and subsystem manufacturers . Mainstream manufacturers look at the market TI: iSuppli statistics show that the global analog chip growth rate in 2006 was about 11.7% to 12% compared with 2005 , and the growth rate in 2007 will be about 13.8% to 14%. In China, the entire analog product market is in a period of rapid growth. The development of the analog chip market has also fluctuated with the changes in the semiconductor market environment . Although the growth rate of the Chinese semiconductor market is very fast, the growth will also slow down during the period of decline in the overall environment, but it will not change as drastically as the global semiconductor market. There are several driving forces for the development of the analog chip market, among which the largest group is the growth of portable handheld devices. In recent years, the market for mobile phones, MP3, PMP and mobile TV has grown very fast. Especially in the field of mobile communications, with the upcoming 3G era , the growth of the communications industry will also be faster and faster, and the analog chip market required by the communications industry will also grow significantly. Fairchild: According to iSuppli research, the compound annual growth rate (CARG) of analog IC revenue in Asia is expected to reach 12% from 2005 to 2009. China's analog chip market is expected to maintain strong growth momentum in the second half of 2006 and throughout 2007. China 's local analog device market will continue to be led by several major manufacturers, and China will continue to improve its technology and process capabilities in the next few years. The Chinese market is expected to continue to grow, but it will still only account for a very small share of the global analog chip supply. Wolfson: In the digital consumer electronics industry, "design in China" will be a hot topic in 2006 and beyond . We are very pleased to see that more and more companies are developing and producing various positioning products in China not only for the Chinese market, but also for the global market. This is a powerful supplement to the many companies that only produce products designed elsewhere in China. With the substantial improvement of local design capabilities, the development prospects of China's analog device market are extremely broad, and various advanced technologies will soon be applied in China.
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