direct conversion receiver


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direct conversion receiver

Also called a "tuned radio frequency" (TRF) receiver, it is a radio receiver that detects and demodulates the carrier signal broadcast by the station without using an intermediate frequency (IF) stage. A variable filter is tuned to filter out everything but the desired radio station's carrier frequency. Along with the homodyne receiver, direct conversion was one of the earlier methods of building radios, both of which were superseded by the superheterodyne approach. See superheterodyne receiver.
References in periodicals archive ?
Tatu, "Comparative demodulation results for six-port and conventional 60 GHz direct conversion receivers," Progress In Electromagnetics Research, Vol.
The direct conversion receiver system performance, EVM, BER and PER based on an 802.
05) sets the IP2 requirement for a direct conversion receiver.
Very much like its well established super-heterodyne receiver counterpart, first introduced in 1918 by Armstrong, [1] the origins of the direct conversion receiver (DCR) date back to the first half of last century when a single down-conversion receiver was first described by F.
Skyworks' direct conversion receiver (DCR) architecture can be combined with multiple basebands without requiring special processing interfaces.
The AD6546 Othello-E transceiver uses a closed-loop polar modulation transmitter and direct conversion receiver for EDGE/GPRS networks, and the AD6548 Othello-G transceiver supports GPRS operation with a low-cost, small PCB-area solution.
Skyworks' Lynx(TM) architecture combines its next-generation ARM 9(TM) processor and StarCore(TM) DSP baseband engine, an integrated analog mixed-signal and Helios(TM) direct conversion receiver, and a power amplifier (PA) module.
Built using Tropian's patented Polar Impact technology in combination with the acknowledged advantages of a direct conversion receiver architecture, the TR15431N provides significant performance and efficiency gains over traditional solutions, enabling wireless device manufacturers to push the limits of handset innovation.
Based on Skyworks' industry-leading single-chip technology, the SKY74945 consists of a direct conversion receiver, a transmitter with a voltage controlled oscillator (VCO), and a fully integrated fractional-N synthesizer.