synthesizer of frequency stage comprising two loops a phase locking the second of which multiplies the frequency of the first by a factor close to the unit.

摘要

To frequency synthesis stage comprising two a phase locked loops. The first, d, m, cp, divides the frequency fod floors precedents by the end of the invention, n being an integer variable and added to the above a frequency standard p which is in a fixed ratio with a value representative of the large not to give an intermediate frequency f, while the second (o, m, m, cp, multiplied by nqr. P and q are chosen in such a manner such that the product p0 is substantially equal to the average of the limit values desired to the frequency of the output. / p & & p & application is the generation of frequencies tres castings.