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.
A low phase noise CMOS LC VCO working at 1.8 GHz with quadrature prescaler for single-chip UHF 860 - 960 MHz RFID reader is proposed in this paper. The symmetrical filtration technology is adopted to suppress noise for complementary cross coupled LC VCO. FOM method is applied in low-noise VCO design. Injection locked prescaler with ring oscillator core can provide wide locking range. The proposed...
A GSM/EDGE transmitter implemented in 0.13-mum CMOS using offset phase locked loop and direct conversion architecture is presented. The transmitter consists of a DCT, an OPLL with a TXVCO, a fractional-N synthesizer with a RFVCO and LDO regulators. The transmitter delivers 1.5 dBm output power with 1.2deg rms phase error and the modulation spectrum at 400 kHz offset is better than -62 dBc in high...
This paper presents a feasibility study on VCO using RF SiP technology, which is an RF application of stacked SiP. An off-chip inductor is implemented in a separated chip, and measured Q factor is 130. A phase noise is -119 dBc/Hz at 1 MHz offset for a 5.84-GHz carrier frequency, and frequency tuning range is 5.73 GHz-5.95 GHz. Power consumption is 1.93 mW, and 180 nm CMOS process is utilized. FOM...
A single-chip, dual-band transceiver for CDMA2000 is presented. The design supporting the North American cellular and PCS bands features a complete zero-IF receiver, a direct-conversion transmitter and two fully integrated synthesizers with VCOs. The analog receiver front-end comprises two self-matched wideband LNAs, a highly linear demodulator and a third-order baseband filter. In a test version...
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.