Abstract: This paper describes a low-noise, 900-MHz, voltage-controlled oscillator (VCO) fabricated in a 0.6-/spl mu/m CMOS technology. The VCO consists of four-stage fully differential delay cells performing full switching. It utilizes dual-delay path techniques to achieve high oscillation frequency and obtain a wide tuning range.

2021年2月20日 · 负载牵引是指由于负载阻抗变化而引起的 VCO 输出频率变化，测量单位为 MHz 峰峰值 (pk-pk)。 通常，通过使用类似图 4 所示的发射极跟随器之类的缓冲放大器来提高负载隔离度。

Z-Communications, Inc. manufactures the world’s most extensive selection of 100% RF tested VCO surface mount modules. Call toll free 1-877-808-1226 to speak to a sales representative today. We carry a broad range of VCO products from 40 MHz to 12.2 GHz and we offer various oscillator topologies and resonator technologies.

Power supply induced noise may be seen at offsets from 20 Hz to 1 MHZ from the carrier. If the VCO is powered from a regulated power supply, the regulator noise will increase depending upon the external load current drawn from the regulator.

This VCO offers frequencies from 50 MHz to 1.4 GHz while maintaining excellent performance. It provides Low Phase Noise, Low Harmonics, and Excellent Linearity. It is designed in our standard 0.40" x 0.496" SMD package.

What is a Voltage Controlled Oscillator (VCO)? A Voltage-Controlled Oscillator (VCO) is an electronic oscillator which oscillation frequency is controlled by a voltage input. The applied input voltage determines the instantaneous oscillation frequency.

我们的压控振荡器产品系列通常被称为VCO，涵盖从10 MHz至11 GHz的频段选择，可提供各种封装选件。 这种压控振荡器产品系列最常部署于锁相环、频率合成器、电子干扰设备和函数发生器等应用中。

2025年3月1日 · The VCO consists of four coupled conventional Colpitts VCOs which can improve phase noise performance. By switching the transformer operating modes, the VCO operates in three frequency bands continuously without switched capacitor banks.

2025年3月20日 · A prototype Colpitts VCO is implemented in 130 nm SiGe BiCMOS to illustrate the simultaneous wideband and low-noise performance. The circuit achieves a phase noise of -112 dBc/Hz at 1 MHz offset across a continuous tuning range of 10.4%. When used with two frequency doublers within a 76–81 GHz frequency-modulated continuous-wave automotive ...

1 天前 · This work presents a ring-VCO-based integer-N phase-locked loop (PLL) with a wide frequency range (850 MHz–3.3 GHz) and fast frequency transitions. ... The proposed PLL covers 850 MHz to 3.3 GHz, achieving −107.3 dBc/Hz phase noise at a 10 MHz offset, with 6 mW power consumption at 3.3 GHz and an active area of 0.09 mm 2.