What are VCOs?
| Voltage controlled oscillators (VCOs) can be tuned over a wide range of frequencies by applying a voltage (tuning voltage) to it. This type of oscillator is less costly than crystal oscillators, but not as stable. |
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| 2012-04-13 | 2558-2575MHz VCO boasts excellent linearity 2558-2575MHz VCO boasts excellent linearity |
| 2011-09-09 | VCO features excellent linearity VCO features excellent linearity |
| 2011-07-15 | MMIC VCOs boost performance with buffer amplifiers RFMD introduces the RFVC182X family of low noise MMIC voltage controlled oscillators (VCO) with buffer amplifiers for enhanced temperature, shock, and vibration performance. |
| 2010-09-01 | VCO operates at 2175MHz frequency VCO operates at 2175MHz frequency |
| 2010-08-16 | VCO offers 488Hz to 2MHz frequency range VCO offers 488Hz to 2MHz frequency range |
| 2010-06-23 | PLL synthesiser drives VCOs to cut out active loop filters Analog Devices is offering a PLL synthesiser that can be used to directly drive high tuning-voltage external voltage-controlled oscillators (VCOs), eliminating active loop filters from circuits. |
| 2010-05-26 | VCOs meet phase noise performance standards RF Micro Devices debuts a family of laminate-based voltage-controlled oscillators that offers phase noise performance that meets or exceeds the requirements of 2G, 3G, and 4G (LTE and WiMAX) cellular base stations. |
| 2009-08-26 | PLL/synthesiser runs at 1,800-1,860MHz Crystek's new CPLL58-1800-1860 PLL/synthesiser is housed in a compact 15mm x 20mm x 4mm SMD package. |
| 2009-05-19 | VCO operates from 3015 to 3045 MHz VCO operates from 3015 to 3045 MHz |
| 2008-12-09 | VCO promises excellent linearity VCO promises excellent linearity |
| 2008-04-07 | Reduce EMI with spread spectrum clock generators To control EMI in consumer devices clock parameters like PLL charge pump current, VCO gain, and output drive strength, need to be programmable. |
| 2008-11-18 | VCO touts excellent linearity VCO touts excellent linearity |
| 2008-10-24 | Guarantee PLL lock over temperature Know the two methods that result in guaranteed PLL lock over temperature over all parts. |
| 2008-07-08 | VCO operates at 5V DC supply VCO operates at 5V DC supply |
| 2001-04-05 | Clock regenerator with crystal-controlled phase-locked loop VCO (NE564 Clock regenerator with crystal-controlled phase-locked loop VCO (NE564 |
| 2004-12-16 | Coaxial resonators for VCO applications Coaxial resonators for VCO applications |
| 2008-06-12 | Multi-channel transceiver provides reliable data link Radiometrix introduces UHX1, a narrow band FM multi-channel VHF transceiver unit squeezed into a compact package. |
| 2008-06-03 | Transmitter supports two frequencies with one crystal Maxim introduced its PLL VHF/UHF transmitter for transmitting OOK/ASK/FSK data at 315MHz or 390MHz. |
| 2008-04-23 | Maxim unveils dual-output clock generator Maxim has introduced dual-output clock generator that provides two differential LVPECL outputs for the same or different frequencies, thus eliminating one high-frequency crystal oscillator. |
| 2008-03-14 | Signal source analyser targets RF apps Agilent Technologies Inc. has announced Signal Source Analyser that can be used for traditional high-quality phase-noise measurements such as VCO evaluation and PLL testing, jitter measurements and signal source analysis. |
| 2008-02-18 | Maxim touts single-chip WiMAX RF transceivers Maxim has developed what it claims as the industry's first single-chip WiMAX RF transceivers that eliminate the costly SAW filter and extra VCO circuitry required by existing superheterodyne solutions. |
| 2007-12-04 | Clocking high-speed A/D converters Extremely high-speed ADCs demand a low-jitter sample clock in order to preserve SNR. These 8bit and 10bit converters have best-case noise floors set by quantisation noise. In this article, we look at the strategy for optimising the performance of the sample clock based on PLL/VCO characteristics. This means minimising overall integrated phase noise, which minimises clock jitter. |
| 2007-09-14 | VCO-integrated RF synthesizer operates up to 5GHz VCO-integrated RF synthesizer operates up to 5GHz |
| 2007-09-12 | Crystek unveils wide-range 1600-3200MHz VCO Crystek unveils wide-range 1600-3200MHz VCO |
| 2007-04-27 | APN1004: Varactor SPICE models for RF VCO applications APN1004: Varactor SPICE models for RF VCO applications |
| 2007-04-27 | APN1012: VCO designs for wireless handset and CATV set-top applications APN1012: VCO designs for wireless handset and CATV set-top applications |
| 2006-05-24 | RF synthesizers' output frequency above 3GHz . STMicroelectronics has developed integrated RF synthesizers with embedded voltage-controlled oscillators (VCO). |
| 2006-03-29 | AMIC unveils GPS receiver IC AMIC Communication Corp. has launched its first GPS receiver IC that integrates an LNA, image rejected mixer, IF band pass filer, IF VGA amplifier, VCO, PLL, 2bit ADC and internal regulator. |
| 2006-02-28 | VCOs output 11.5GHz to 14.9GHz Hittite Microwave Corp. has extended its line of GaAs HBT monolithic microwave IC (MMIC) voltage-controlled oscillators with fundamental, half and quarter frequency outputs. |
| 2006-02-24 | UMC claims 192GHz silicon operating frequency United Microelectronics Corp. has fabricated a "push-push" VCO that it claims has the highest operating frequency for any circuit implemented in silicon to date: 192GHz. |
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