ADI introduces PLL synthesizer for flexible, cost-effective radar systems
ADI introduces PLL synthesizer for flexible, cost-effective radar systems Analog Devices, Inc.'s newly introduced ADF4158PLL synthesizer can flexibly and cost-effectively implement FMCW (frequency modulated continuous wave) radar systems. FMCW radar systems are widely used in the automotive, aviation, military, industrial, and communications fields, and can measure the relative distance and speed of external targets. Compared with the traditional pulse radar method, the FMCW radar system can provide detection and ranging functions at a much lower power consumption level, and thus has a significant cost advantage. FMCW radar systems require very high RF performance, and current methods that rely heavily on VCO (voltage controlled oscillator) linearity are very complex, lack flexibility, and costly, so there are many design challenges. As the latest member of the industry-leading PLL synthesizer series, the ADF4158 is a feature-rich 6.1GHz programmable device that can be easily configured to meet the needs of various FMCW radar system design engineers. The FMCW radar system implemented using the ADF4158 has a highly linear ramp characteristic that is completely independent of VCO linearity, thus improving radar resolution, reducing cost, and complexity related to system calibration. In addition, ADF4158 is based on reliable BiCMOS process technology, and its implementation cost is only one-third of that of similar devices. Other key features and advantages of ADF4158: -25-bit modulus, supporting sub-hertz frequency resolution-Frequency and phase modulation function-Generate sawtooth and triangle waves in the frequency domain-Can generate parabolic ramps-Use superimposed frequency shift keying (FSK) to generate ramps-Use two Different scan rates generate ramps-ramp delay, ramp frequency readback, and ramp interrupt-2.7V to 3.3V power supply-independent VP, allowing extended tuning voltage The ADF4158 PLL synthesizer in a 4mmx4mm 24-pin LFCSP package is available now. The price for a 1,000-piece order is $ 4.88 / piece, and the 10,000-piece order is $ 4.14 / piece. The ADF4158 is supported by the widely used ADI design tool ADIsimPLL (TM). This tool can be downloaded for free from http: // and by performing simulation of all key performance variables, it is possible to make a fast and reliable evaluation of ADI's latest high-performance PLL products. The ADF4158 is ideal for use with ADI's high-performance automotive signal processing and conversion product portfolio, including the ADSP-BF531 Blackfin (R) processor and high-performance AD7357 14-bit 4.2 MSPS analog-to-digital converter. To contact ADI experts, learn about cross-reference tools, and more resources on how to use and obtain ADI products,
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