The error voltage feeds a voltage-controlled oscillator (VCO), which produces a variable switching frequency driving the driver and the power stage.Access through your organization Check access to the full text by signing in through your organization. Access through your organization ...
494A! {K_{{\rm{vco}}}{\rm{ = 25}}MH{\rm{z/V}},通过公式{K_{VCO}} = \frac{{\partial f}}{{\partial V}} = \frac{1}{{2\pi }}\frac{1}{2}{\omega _0}^3L\frac{{\partial C}}{{\partial V}}% MathType!MTEF!2!1!+- % feaahqart1ev3aqatCvAUfeBSjuyZL2yd9gzLbvyNv...
The proposed VCO was implemented in a standard 0.18 μm CMOS technology, which oscillates at a carrier frequency of 4.5GHz with a 0.2-V supply voltage. The measured phase noise is −104 dBc/Hz@1MHz-offset with a power consumption of 114 μW, and FoM is −187 dBc/Hz. 关键词: ...
本发明属于无线通信技术领域,涉及锁相环中的电压控制振荡器(VCO),具体为一种Class-F压控振荡器。 背景技术 锁相环作为无线通信技术的重要组成部分,随着无线通信技术的飞速发展,对锁相环的要求也越来越高;电压控制振荡器(VCO)作为锁相环的关键电路,其性能是最受关注的问题;其中,最主要的性能指标是VCO的相位噪声和...
(7x7x0.9 mm)封装 数据手册 -生产数据 说明 ST25RU3993是EPCClass1Gen2RFID读卡器IC, 可实现所有相关联协议,包括ISO 18000-6C,面 向移动RFID读写器的ISO 29143空中接口协议, 以及直接模式运行的ISO 18000-6A/B.它包括一 个片上VCO和一个功率放大器,可提供一整套 RFID功能,包括密集读卡器模式(DRM)功能, 并...
A 40-GHz hybrid class-AB/class-B CMOS VCO with a current-combining transformer (CCT) using a 65-nm RF CMOS process is presented. The hybrid class-AB/class-B configuration is adapted to two cross-coupled pairs to lower the power consumption while maintaining the phase noise performance. As...
Class-F VCO的实现方法 图1给出了传统Class-B和Class-C结构的LCVCO。其中Class-B是最简单、最常见,也是最常用的结构,但其噪声性能和FoM并不是最优的。 2023-10-31 17:04:53 Class-D音频功放的应用及方案 随着高品质音频持续上升以及对音频设备小型化高效节能的追求,音频功放从ClassA和ClassAB向ClassD切换的...
Indicates if the TTY HCO and VCO options should be hidden in the accessibility menu if the device is capable of RTT. KeyIgnoreDataEnabledChangedForVideoCalls When true, changes to the mobile data enabled switch will not cause the VT registration state to change. KeyIgnoreRttModeSettingBool ...
所述第一谐振腔由电感l1、变容管c1构成;所述变容管c1与电感l1并联后两端分别与nmos管m1、nmos管m2的漏极相连,且两个连接端分别作为压控振荡器的输出端out+、输出端out-;所述电感l1的中心抽头接电源vdd,所述变容管c1由两个变容管串联组成、且串联端接vco的控制电压vcont; 所述第一谐振腔由电感l2、电容c2...
在840-960 MHz UHF频段,ST25RU3993 RAIN®(UHF) RFID读卡器设备提供多协议支持,并与ISO18000-62 & -63、ISO29143和GS1的EPC UHF Gen2空中接口协议兼容。它包括一个片上VCO和一个功率放大器,可提供一整套RFID功能,包括密集读写器模式(DRM)功能,并能支持跳频、低电平传输编码、低电平解码、数据成帧和CRC校验...