Low noise frequency synthesizer
US4851787A · kind A · utility
9Cited by
1References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 18, 1988 |
| Grant date | Jul 25, 1989 |
| Priority date | — |
| Expiry date | Aug 18, 2008 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03L7/193
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A frequency divider circuit for use in a programmable frequency synthesizer is disclosed and comprises a dual modulus prescaler, a fixed divider, a programmable counter, and a programmable fractional divider. The feedback signal is generated directly by the dual modulus prescaler, rather than by circuitry downstream from the dual modulus prescaler.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.