Proper frequency planning in a synthetic instrument RF system
US8164498B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 10, 2010 |
| Grant date | Apr 24, 2012 |
| Priority date | — |
| Expiry date | Nov 5, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M1/1255
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A system and method for clocking in analog-to-digital (ADC) converter in a synthetic instrument unit is presented. A method begins by applying an input clock to an amplifier to produce an amplified clock. The amplified clock is filtered to produce a filtered clock. The ADC of this synthetic instrument unit is clocked with the filtered clock. The input frequency of the ADC corresponds to a second or higher order Nyquist zone that is above the sampling frequency of the ADC. The input data is carried by an intermediate frequency (IF) signal. The filtered clock of ADC is switched off a clock path of the ADC when the ADC is not in use.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.