A new PLL topology and a new simplified linear model are presented. The new fractional-N synthesizer presents no reference spurs and lowers the overall phase noise, thanks to the presence of a SampleJHold block. With a new simulation methodology it i

RTL8201 PCB Layout Guide Goal : (1) Make a Noise-free, power-stable, environment that suitable for RTL8201. (2) Reduce the possibility of EMI, EMC and their influence to the chip. (3) Simplify the task of routing signal trace, so as to make a b

了解SINAD、ENOB、SNR、THD、THD + N、SFDR，不在噪底中迷失。用于定量表示ADC动态性能的常用指标有六个，分别是：SINAD(信纳比)、ENOB(有效位 数)、SNR(信噪比)、THD(总谐波失真)、THD + N(总谐波失真加噪声)和SFDR(无杂散动态 范围)。-Learn SINAD, ENOB, SNR, THD, THD+ N, SFDR, lost not noise floor. For quantitative expression commonly

随机减量法，对白噪声激励下的响应进行平均处理，得到自由衰减响应。-Random Reduction Act, under white noise excitation response averaged to give the free decay response.