The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
An all digital modulation bandwidth extension technique for a conventional charge pump PLL is proposed. By modulating data through fractional divider in feedback path and digital-to-frequency path in VCO all digitally, PLL's loop bandwidth can therefore be optimized for noise filtering while high data rate modulation is still obtained. The gain mismatch between input and digital-to-frequency path...
This paper presents a 3.9-to-5.39GHz all-digital fractional-N PLL for WiMax/WLAN 11n application. The ADPLL uses a self-corrected TDC to achieve meta-stable-error-free operation, wide dynamic range and high timing resolution in a small chip area. The rms jitter from 1kHz to 40MHz is 320fs at 4.51GHz while the calibrated bandwidth is 300KHz. With aid of the fast temperature tracking loop, the operational...
Modern FM radio receiver on portable devices requires low power consumption, small size and good audio performance. This paper reports a highly integrated FM radio single-chip receiver optimized for low power consumption and minimum external components. The operating frequency is 76 MHz ~ 108 MHz which covers EURO/US/Japan FM bands. The chip integrates all essential RF front-end circuits including...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.