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direct conversion receiver |
Also found in: Wikipedia | 0.02 sec. |
direct conversion receiverAlso 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with the homodyne receiver, direct conversion was one of the earlier methods of building radios, both of which were superseded by the superheterodyne approach.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. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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The MAX2392 is industry's first direct-conversion receiver for TD-SCDMA. Both versions include 4 LNA inputs, integrated power-management, integrated LO (local oscillator) and transmit VCOs, fractional-N PLL (phase locked loop) synthesizer, and the full direct-conversion receiver signal path. The IC TST0950 can be used for conventional superheterodyne or direct-conversion receivers in 925-MHz to 960-MHz GSM mobile phones and ISM applications, the TST0951 is designed for DCS and PCS mobile phone applications in the frequency range of 1800 MHz to 2000 MHz. |
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