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Need very small UHF (800 MHz) NBFM receiver chip ? - RF Cafe Forums
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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 ?
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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
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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.
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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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