This series of Low Noise Amplifiers provides a filtered,

low-noise gain solution ideal for applications where higher

reliability is critical. These filtered low noise amplifiers are

designed to reduce out-of-band interference while achieving

high dynamic range.

A 3-pole ceramic filter selects only the desired GPS

positioning signal while the low-noise gain stage

maintains the receiving system’s sensitivity.

The LNA rejects undesired signals by at least 40 dB at

1050, 1410, and 1710 MHz. See the graphs on Page 2

for return loss, rejections, and gain of a typical unit.

The preamplifier is powered by DC voltage applied to

the center conductor of the output connector. Optionally,

the unit can be powered through an external DC bias

connector.

Features and Benets

CERTIFIED

SPECTRUM MICROWAVE

S-Parameters for this model are available on our website.

LNA parameters include noise data.

Filtered

Low Noise Ampli er

Noise Figures

Typical Performance Specications

Frequency

. . . . . . . . . . . . . 1575.42 MHz (L1)

Bandwidth

. . . . . . . . . . . . 30 MHz min.

Noise gure

. . . . . . . . . . . 2.0 dB max.

VSWR

. . . . . . . . . . . . . . . 1.5:1 max.

Gain

. . . . . . . . . . . . . . . . 26 dB +/-0.5 dB

Gain Flatness

. . . . . . . . . . +/-0.5 dB

Rejection

. . . . . . . . . . . . . 40 dB @ 1050, 1410, 1710 MHz

Bias

. . . . . . . . . . . . . . . . . Coaxial Bias

DC Power

. . . . . . . . . . . . 5-16 VDC

Temperature Range

. . . . . . -40˚C to +71˚C

All specifications above measured at 25˚

Dimensions and Connections

and evaluation (P/N: A020-0560)

Chassis is machined aluminum with a nickel plate finish.

For GPS Applications

1575 MHz

P/N: 310-024105-011

GPS Band

Freq (MHz)

NF (dB)

L1

1565

1.60

1575

1.60

1585

1.60

Block Diagram

P/N: 310-024105-011

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SPECTRUM MICROWAVE

• 38166 Old Stage Road • Delmar, Delaware 19940 • Phone: 302-846-2750 • Fax: 302-846-3888

SPECTRUM MICROWAVE