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| Need very small UHF (800 MHz) NBFM receiver chip ? - RF Cafe Forums | ||||||
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Because of the high maintenance needed to monitor and filter spammers from the RF Cafe Forums, I decided that it would
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Below are all of the forum threads, including all the responses to the original posts. Steve R Post subject: Need very small UHF (800 MHz) NBFM receiver chip ? Posted: Tue Jul 05, 2005 10:14 am I need a very small receiver chip for the following application:- Frequency UHF (circa 800 MHz rx) Modulation: Narrow band FM (1 Kbps, 3 kHz peak deviation) Supply voltage: Any Supply current: As low as possible (target < 10mA @ 3 - 5 Volts) Type: Any of Single Conversion / Double conv / Direct conv etc Rx sens: Better than -115dBm (12 dB sinad or 10-4 BER) Other rx spec: Best poss blocking, image etc Ideally it would have on chip PLL and on chip demodulation. There do seem to be a few chips around but those I have found require substantial power or are designed for wider band work. Any suggestions ? Top IR Post subject: Posted: Tue Jul 05, 2005 10:34 am Site Admin Joined: Mon Jun 27, 2005 2:02 pm Posts: 373 Location: Germany Hello Steve, You should try companies like XEMICS, MELEXIS they manufacture receivers/transceivers for ISM band and similar applications. Good luck! _________________ Best regards, - IR Top ck Post subject: Posted: Wed Jul 06, 2005 1:26 pm Most chips with a PLL are going to be for the 868 and/or 915 MHz ISM band. Is this what you are after? I checked some of the info I keep, and couldn't find anything that met all your requirments. Most of the available devices are transceiver chips. Very few of the available devices can operate from less than 10 ma. Most require 15 to 28 mA for receive Additionally, very few of the available devices can do -115 dBm sensitivity. Most state sensitivity in the -100 to -110 range. In addition to what Steve R suggested, try www.bluechip.no and www.integration.com . Additionally, Freescale at their recent technology conference presented information a MC33695 (?) -I don't think they have posted data sheets on the web yet. Top arora_amit Post subject: NBFM and WBFM rangesPosted: Thu Jul 21, 2005 9:47 am HI, Please tell me what are the maximum and minimum range that NBFM and WBFM support Regards Amit Arora Posted 11/12/2012 | ||||||
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