ID 原文 译文
40706 为降低具有高精度要求和功能丰富的MCU的修调测试成本，提出一种快速高效的MCU修调测试方法。 In order to reduce the cost of MCU trim test with high precision requirements and rich functions, a fast and efficient MCU trim test method is proposed.
40707 此方法是将MCU芯片成品通过Flash自动修调补偿来控制电路的输出基准和频率，或者是调整电流，从而实现自动化修调MCU芯片的效果，同时控制MCU模拟从不同pin脚上输出到测试仪器， This method controls the output reference and frequency of the circuit through Flash automatic adjustment and compensation of the produced MCU chip, or adjusts the current to realize the effect of automatic adjustment of the MCU chip, and controls the MCU analog output to be output from different pins to the test.
40708 然后再由软件自动记录测试结果。 Furthermore, the instrument automatically records the test results by the software.
40709 修调测试使用的是一款工业级8051芯片。 The trim test uses an industrial grade 8051 chip.
40710 测试结果表明:经过这种修调测试方法可以使MCU满足输出精度要求且能快速得到MCU模拟信号输出，并有效地降低MCU的修调测试成本。 The test results show that through this trimming test method, the MCU can not only meet the output accuracy requirements but also quickly obtain the MCU analog signal output, which effectively reduces the MCU trim test cost.
40711 N通道滤波器因中心频率可调、线性度好等特性，在射频接收机前端应用广泛，但也存在抗谐波混叠能力弱的缺陷。 The N-path filter is widely used in the front end of radio frequency receivers due to its adjustable center frequency and good linearity, but it also has the defect of weak anti-harmonic folding ability.
40712 设计了一款基于预滤波技术的抗谐波混叠的差分8通道带通滤波器。 A differential 8-path band-pass filter based on prefiltering technology with anti-harmonic folding is designed.
40713 该滤波器由两个前置LC带阻滤波器和一个串联电感单端转双端差分8通道带通滤波器构成，前者用于抑制混叠最强的7次和9次谐波，后者用于抑制偶次谐波。 The filter consists of two pre-LC band-stop filters and a series inductor single-ended to double-ended differential 8-channel band-pass filter.The former is used to suppress the 7th and 9th harmonics with the strongest folding, and the latter is used to suppress even harmonics.
40714 基于TSMC40 nm工艺仿真结果表明：滤波器的中心频率fs可调谐范围为600 M~1。6 GHz，fs=1 GHz处的带外抑制为30 dB，7fs和9fs处的谐波混叠抑制均大于90 dB，偶次谐波最大抑制为120 dB，且增益大于5 dB，噪声系数(NF)小于5 dB，插入损耗(S11)小于-10 dB，带内IIP3在6 dB~17 dB之间。 Basedon TSMC 40nm process, Cadence Spectre RF simulation results show that the center frequency fs of the filter can be tuned in the range of 600 M~1.6 GHz, the out-of-band suppression at fs=1 GHz is 30 dB, and the harmonic folding suppression at 7fs and 9fs is greater than 90 dB, even harmonic maximum suppression is 120 dB, and gain is greater than 5dB, noise figure (NF) is less than 5 dB, insertion loss (S11) is less than -10 dB, and in-band IIP3 is between 6 dB~17 dB.
40715 针对云存储环境中单授权中心的安全性问题，提出一种以CP-ABE模型为基础，同时基于联盟区块链的可撤销多授权机构访问控制模型(Revocable Multi-Authority Access Control Based on Consortium Blockchain， RMACB)。 Aiming at the security problem of single authorization center in cloud storage environment, a revocable multi-authority access control based on CP-ABE model and federated block chain is proposed.