RF CMOS - Wikipedia
RF CMOS is a metal–oxide–semiconductor (MOS) integrated circuit (IC) technology that integrates radio-frequency (RF), analog and digital electronics on a mixed-signal CMOS (complementary MOS) RF circuit chip.
CMOS AUDIO/VIDEO RF MODULATORS EF SUFFIX SOIC-16 PACKAGE CASE 751B-05 Features • Multi-TV standard support: NTSC, PAL, SECAM (B/G, I, D/K, L, M/N). • UHF operation (460MHz to 880MHz) • Programmable UHF oscillator and sound subcarrier oscillator. • On-chip tank circuits. No external varicaps inductors or tuned components required.
The MC44CC375 CMOS RF modulator is the latest generation of the legacy MC44BC375 products. The MC44CC375AV is an audio/video RF modulator for use in VCRs, set-top boxes, and similar devices. It is designed for applications requiring US …
A multiphase PWM RF modulator using a VCO-based opamp in 45nm CMOS
Jun 3, 2010 · The proposed RF modulator encodes the baseband signal into a set of multiphase PWM signals which are generated by a VCO-based opamp. The use of PWM avoids broadband quantization noise which is produced by ΣΔ modulation used in other RFDAC-based modulators.
Digital RF Modulators Provide the High Density, Agility, and Cost ...
Aug 20, 2012 · A digital RF modulator, an integrated solution that satisfies stringent DOCSIS RF-performance requirements, takes advantage of modern technologies like high-performance wideband digital-to-analog conversion and CMOS technology scaling.
The ∆Σ modulator controls a programmed RF pulse-density modulator that converts the signal to 1-bit quantization operating at 2.4GHz. The ∆Σ and PDM blocks are synchronized with clock signals that contain the polar phase information. In the case of the PDM stage, the clock signal operates at the RF carrier frequency of 2.4GHz. In a fully
In this paper, we examine this goal in the context of achieving an RF modulator structure that avoids the need for CMOS transistors with highly linear transconductance and high intrinsic gain. To do so, full swing signals are utilized whose information is encoded in the form of pulse widths.
The MC44CM373/MC44CM374 CMOS family of RF modulators is the latest generation of the legacy MC44BS373/4 family of devices. The MC44CM373/4 RF modulators are designed for use in VCRs, set-top boxes and similar devices. They support multiple standards and can be programmed to support PAL, SECAM or NTSC formats. The devices are programmed by a
Intermodulation or intermodulation distortion (IMD), or intermod for short, is the result of two or more signals of different frequencies being mixed together, forming additional signals at...
L’oscillateur de puissance pourrait idéalement être utilisé dans un émetteur RF. Dans cette architecture, les signaux en bande de base analogiques ou numériques sont utilisées pour moduler l'oscillateur de puissance menant à un émetteur RF efficace, flexible et simple.