Freescale Semiconductor has introduced the new Xtrinsic PRDTX11101 automotive radar transmitter as an active safety application such as adaptive cruise control. This industry-first 77 GHz silicon germanium (SiGe) BiCMOS transmitter has a built-in voltage controlled oscillator (VCO) and power amplifier for better control, while reducing system design complexity and overall cost.
Automotive active safety applications, or advanced assisted driving systems (ADAS), are currently becoming rapidly expanding markets. A recent strategic analysis report predicts that the market for ADAS (including radar applications) will reach a scale of nearly 15 billion in 2019. This system is expected to assist drivers in making the right choices and reduce the number of car accidents and accidents.
Freescale's chips and software have accelerated the birth of ADAS for mainstream vehicles. Freescale's products are both malleable, low power loss and highly integrated, and have the industry's most complete ADAS dedicated microcontrollers, sensors and analog components to choose from. Using Freescale's technology, automotive equipment manufacturers can simplify the extremely complex R & D process of front-rear and body-around cameras, and adaptive cruise control radar, and shorten their time to market.
Adaptive cruise control must have radar to function, because radar can continuously monitor the vehicle's field of vision. Freescale ’s transmitter solution supports a radar sensing range of up to 200 meters, so it can determine the distance and proximity rate between the vehicle and other objects, including vehicles, stationary objects or pedestrians. Once the radar system detects a possible collision, active braking will take effect to prevent accidents in a timely manner when the driver fails to respond.
Dan Viza, Freescale's director of millimeter-wavelength products, said: Freescale is working hard to make active safety applications on mainstream models more valuable, thereby making roads safer. The Xtrinsic PRDTX11101 transmitter not only reduces the cost and complexity of 77 GHz automotive adaptive cruise control and long-range radar applications, including short-range automotive applications such as blind spot detection, lane change assistance, and two-sided car warning systems Benefit accordingly. "
The new radar transmitter is manufactured with 0.18 µm SiGe BiCMOS technology, so it can integrate the digital control and millimeter frequency function of CMOS. After integrating the VCO, and adding the power amplifier (PA) level, you can reduce the system complexity and effectively reduce the area of ​​the customer's circuit board. The transmitter also has low phase noise, coupled with low power loss and a wide adjustment range, which can improve the authenticity of the signal and adjust the components to specific conditions or the optimal range required by the application.
Electronic design is also trying to reduce its size while continuously improving the performance of the whole machine. From mobile phones to smart small portable products, small is always the same pursuit. High-density integration (HDI) technology enables end-product design to be more compact while meeting higher standards of electronic performance and efficiency. HDI is currently widely used in mobile phones, digital (camera) cameras, MP3, MP4, notebook computers, automotive electronics and other digital products, among which mobile phones are the most widely used. HDI boards are generally manufactured using a build-up method. The more times the layers are stacked, the higher the technical grade of the board. Ordinary HDI boards are basically one-time laminate, high-order HDI uses two or more layers of technology, and adopts advanced PCB technology such as stacking holes, plating holes, and laser direct drilling. High-end HDI boards are mainly used in 3G mobile phones, advanced digital video cameras, IC carrier boards, etc.
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