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> NJG1551F 800MHZ band gaasfet rf mixer mmic njr 100PCS
NJG1551F 800MHZ band gaasfet rf mixer mmic njr 100PCS
LOW NOISE, GaAs FET 800MHz BAND MIXER MMIC
MTP6 PKG'D WITH INTERNAL GaAs FET VCO AMPLIFIER
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PARTS ARE BEING REMOVED WHEN BOUGHT FROM A NEW REEL!
AS THE TITLE STATES, WE ARE SELLING OFF 100PC LOTS OF THIS GREAT DUAL GaAa FET 800MHz BAND MIXER MMIC.
THEY ARE MNF'D BY NJR AND THIER PART NUMBER IS NJG1551F. THEY COME IN A MTP6 PKG WHICH IS JUST LIKE THE
STANDARD SOT-23-6 SMT PKG. THESE DO WORK FROM 800-900MHz WITH LESS THEN 1.5dB CONVERSION LOSS. THEY
ARE PERFECT FOR USE IN EITHER THE GSM 800MHz BAND OR ANY OTHER EQUIPMENT IN THE 890-920MHz BAND.
WHEN I GOT THESE I BUILT UP A SIMPLE 900MHz ATV RECEIVER USING A 70MHz IF THUS ALLOWING ME TO USE MY
OLD 70MHz 20MHz BW FILTERS AND A TEMIC WIDE BAND FM DEMODULATOR IC. IT WORKED GREAT & TUNED FROM
JUST UNDER 900 TO ABOUT 980MHz AND THE CONVERSION GAIN DID DROP 2.5dB AND THE NF DID GO UP 0.5dB BUT
THESE UNITS HAVE SO MUCH CONVERSION GAIN AND START WITH A NICE LOW NF THE DIFFERANCE WAS ALMOST
HARD TO SEE UNLESS YOU REALLY LOOKED FOR IT!
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AS YOU CAN SEE FROM THE ABOVE PICTURE THESE MIXERS HAVE NO INTERNAL TUNING. SO ALL THE TUNING IS
DONE EXTERNALY BY USING INDUCTORS & CAPACITORS. SO THE ONLY MAXIMUM FREQUENCY RESTRICTION HAS
TO BE FROM THE TWO FET'S THEMSELVES. THERE IS A SINGLE GATE FET AS THE VCO AMPLIFIER THEN THERE IS
A DUAL GATE GAAS FET AS THE MIXER. SO AGAIN ONE CAN SEE THAT THE TUNING IS ALL DONE ON THE OUTSIDE
THUS MAKING IT'S USES A LOT MORE THEN JUST WHAT IT WAS BUILT FOR.
BUT YOU CAN USE THESE MMIC'S ANY WAY YOU WISH!
THANKS FOR LOOKING AND GOOD LUCK!
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