Recently, the first 33 independently designed ASIC chips FDC3301 were born in the eight-room ASIC laboratory of 33 institutes of China Academy of Aerospace Science and Technology. The successful development of FDC3301 marks the expansion of 33 electronic technology fields from board level to chip level, and the talent team is changing from chip users to chip designers.
Because the traditional frequency measurement method using FPGA cannot meet the requirement of high-speed sampling of the output frequency signal of the vibration beam accelerometer under high dynamic conditions, and the dependence on foreign chips is large, in order to change the status quo, 33 institutes have actively innovated and independently developed ASIC chips. design. The chip is mainly used to complete the synchronous continuous measurement of the frequency signal of the vibration beam accelerometer, and can directly output the frequency of the floating point value of the measured signal. Its various performance indicators have met or exceeded the requirements of the chip specification. Not only has the chip integration of the original circuit been realized, but more importantly, its performance indicators have been significantly improved, and the quantization noise has been reduced by an order of magnitude, which has significantly improved The dynamic characteristics of the system.
ASIC chips can be used in aerospace sensor frequency measurement, industrial field test and measurement systems, etc. The successful development of the chip has laid a solid foundation for 33 electronic circuits to develop new development space.
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