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2007-04-23 W-CDMA 2.3GHz VCO using BFR360F and BBY58-02V
The BFR360F is a 14GHz transition-frequency device which takes advantage of the latest manufacturing techniques requiring fewer processing steps than other devices in its class.
2001-04-19 Varactor SPICE models for RF VCO applications
This application note discusses a varactor equivalent circuit model for RF VCO applications.
2002-09-20 Varactor spice models for RF VCO applications
This application note describes the varactor parameter models for RF VCO applications.
2004-12-16 Coaxial resonators for VCO applications
This app note introduces the designer to Skyworks' coaxial resonator, outlines its use in a VCO, and details the method of selecting the correct part
2007-03-12 APN1004: Varactor SPICE models for RF VCO applications
This varactor model is useful for RF VCO applications although it neglects some parasitic components often needed for higher frequency microwave applications, such as the distributed line package model and some capacitance due to ground proximity. For most RF VCO applications, to about 2.5GHz, these parasitic components would not be important unless higher harmonics generated by the varactor affect performance of the VCO. In this case, a more detailed equivalent circuit model is needed. The technique used should be based on the varactor model extraction procedure from S-parameter data.
2007-10-15 VCO-based microwave signal generator rolls
A fast-switching microwave signal generator ideal for data intensive applications, such as antenna test, satellite payload test, and terrestrial microwave link testing, has been introduced by Anritsu Co
2008-03-28 VCO touts 'exceptionally' low phase noise, high output power
From Z-Communications comes a Pb-free, RoHS-compliant, narrow-band coaxial resonator oscillator in the L band.
2007-11-20 VCO runs from 2,778MHz to 2,945MHz
Crystek Corp. has introduced a voltage-controlled oscillator (VCO) that operates from 2,778-2,945MHz with a control voltage range of 0.1V to 16V
2008-07-21 VCO rolls for L-band microwave radio apps
Z-Communications Inc. has released a RoHS-compliant voltage-controlled oscillator (VCO) in the L-band
2002-10-24 VCO designs for wireless handset and CATV set-top applications
This application note describes Alpha Industries' products and services for wireless handset and CATV set-top applications
2005-06-22 UMC fabricates record-setting VCO using CMOS tech
Taiwan foundry United Microelectronics Corp. (UMC) has fabricated a voltage-controlled oscillator (VCO) with a record-setting fundamental operating frequency of 105GHz using its 0.13?m RFCMOS process technology
2004-11-05 Tiny VCO supports wide frequency range
Challenged to develop a miniature VCO with comparable performance to larger packages, Crystek Crystals launched its smallest VCO package
2002-09-20 Switchable dual-band 170/420 mhz vco for handset cellular applications
This application note discusses a new switchable VCO solution which employs switching between separate tank circuits
2013-10-10 South Korean researcher develops wideband ring VCO
Wideband voltage-controlled oscillator is a key part of an IR-UWB system used in a Doppler radar system, which can detect human vital signs such as heart beats and respiration.
2007-10-11 PLLs tailored for wireless, satellite applications
Analog Devices Inc. beefs up its portfolio once again with the release of the the ADF4157, a fractional-N PLL synthesizer.
2007-12-21 PLL VCO covers 500MHz to 3.5GHz frequencies
Raltron Electronics Corp. has released its PCC-A1-3100 phase lock loop (PLL) family of VCOs that covers a frequency range from 500MHz and 3.5GHz.
2004-01-15 Crystek VCO suits portable radios, test instruments
Crystek Crystals Corp. has launched a line of VCOs that is initially comprised of three industry standard packages.
2004-02-20 Crystek VCO exhibits 53dBm output power
Crystek Crystals has introduced a line of high-performance VCOs that generates frequencies between 2.974 GHz and 3.274 GHz.
2004-05-19 Crystek 5GHz VCO available in SMD package
Continuing to expand the frequency range of its high-performance voltage-controlled oscillator (VCO) lines, Crystek Crystals Corp. has added a new 5GHz model in a 1.27-by-1.27cm standard surface-mount package to its CVCO55 family
2013-04-17 Coaxial-based VCO boasts frequency doubling feature
The oscillatoroperates at 6400MHz with a tuning voltage range of 0.3 Vdc to 4.7 Vdc and it features a typical phase noise of -100 dBc/Hz @ 10kHz offset and has good linearity.
2007-03-12 APN1012: VCO designs for wireless handset and CATV set-top applications
VCOs have come to the forefront of RF designs together with the first PLL circuits. In the era before the PLL, oscillators were mostly free running, and only in rare cases were varactors used for modulation or temperature compensation. Nowadays, we rarely see free running oscillators, instead they have become varactor-controlled oscillators. This is because most RF applications require band coverage, which can be realized through the PLL circuit requiring two sources of RF power. The reference source frequency is often a VCXO or TCXO, while the other frequency is controlled by the PLL phase detector
2008-09-30 ADC facilitates automotive radar applications
Maxim introduces the MAX11043 quad, 16bit, simultaneous-sampling ADC for sensor applications
2002-09-20 A VCO design for wlan applications in the 2.4GHz to 2.5GHz ISM band APN1010
This application note describes the design of RF and IF VCOs for a 2.4GHz to 2.4835GHz WLAN application.
2001-04-19 A low phase noise VCO design for PCS handset applications
This application note describes the design and performance of a VCO centered at 1.75GHz for a PCS handset that utilizes Alpha's SMV1763-079 varactor diode
2001-04-19 A differential VCO design for GSM handset applications
This application note attempts to build a bridge toward better understanding of the differential VCO by describing a design covering the 910MHz to 980MHz range, which is appropriate for use in GSM handsets
2002-10-24 A differential VCO design for GSM handset applications
This application note extensively discusses the differential VCO by describing a design covering a 910MHz to 980MHz frequency range that is apt for use in GSM handsets
2002-09-20 A Colpitts VCO for wideband (0.95GHz to 2.15GHz) set-top TV tuner applications
This application note describes the design of a broadband Colpitts VCO that incorporates the SMV1265-011 varactor diode
2001-04-19 A Colpitts VCO for wideband (0.95- to 2.15GHz) set-top TV tuner applications
This application note describes the design of a broadband Colpitts VCO that incorporates Alpha's SMV1265-011 varactor diode
2001-04-19 A balanced wideband VCO for set-top TV tuner applications
This application note addresses the design of a balanced-type VCO based on Alpha's SMV1265-011 varactor with a unique set of capacitance tuning ratios and quality factor
2002-09-20 A balanced wideband vco for set-top tv tuner applications
This application note the design of the balanced-type voltage control oscillator (VCO) based on the newly developed varactor SMV1265-011 with the unique set of capacitance tuning ratios and Q-quality
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