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PDF DEM1500ULNA Data sheet ( Hoja de datos )

Número de pieza DEM1500ULNA
Descripción (DEMxxxULNA) Ultra Low Noise Amplifier
Fabricantes DEMI 
Logotipo DEMI Logotipo



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No Preview Available ! DEM1500ULNA Hoja de datos, Descripción, Manual

www.DataSheet4U.com
DEM33ULNA - 900-930 MHz. Low Noise Amplifier >17dB Gain
DEM23ULNA - 1240 -1300 MHz Low Noise Amplifier >17dB Gain
DEM1420ULNA - 1400 -1500 MHz Low Noise Amplifier >16dB Gain
DEM1500ULNA - 1500 -1650 MHz. Low Noise Amplifier >16dB Gain
DEM1691ULNA - 1650 -1800 MHz. Low Noise Amplifier >15dB Gain
Noise Figure:
IP3 output
Input VSWR:
Output VSWR:
Voltage:
Specifications:
<0.4dB
+15dBm
>6dB @ design frequency
>10dB DC - 3 GHz.
+7 - +16 VDC
Product Description:
The DEM ULNA is a series of Ultra Low Noise Amplifiers intended to be used for Radio
Astronomy applications, amateur EME communications or weak signal satellite reception This series of
ULNA’s produced by Down East Microwave Inc. share a common design from 900 through 1800 DataShee
MHz.
utilize
Each model
the latest in
liPstHeEdMaTbotveechins oolopgtiymaiznedDdaatdareeSphdeeeentsd4igiUnn.gceodomnfotrheapfpreliqcuateionncys
requirement.
requiring the
The ULNAs
lowest noise
figure possible. All of the ULNAs are receive only and do not provide any RF bypass switching circuitry.
Standard gains of our ULNAs range from15 - 17 dB depending on frequency. All noise figures for this
series of ULNAs are below 0.4dB. The ULNAs are adjusted on an individual basis for the best
performance possible.
Our ULNA design incorporates a
low loss series inductor input circuit and
a resistive loaded output circuit. During
testing, the input circuit is optimized for
gain and noise figure. The resistive
loaded output circuit, is adjusted to
control the gain and is tested for a
constant wide bandwidth output
impedance.
This resistive load
impedance absorbs products caused by
reflections from band pass filters or high
Q receiver front ends. We do not use
tuned output circuits or baluns in our
ULNA designs. Tuned output circuits
and baluns do not offer constant output
impedances over wide bandwidths and may cause out of band instabilities from reflected signals.
DataSheeTt4uUn.ceodmcircuits may also require readjusting if a cable length or the characteristics of a filter changes.
/PD/ulna.doc
DataSheet4 U .com
1
11/25/02

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