310-025105-021 SPECTRUM | Alldatasheet
Document overview
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Technical content
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 pair of diplexed 3-pole ceramic filters select only the desired GPS signals 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 Bene/f_its Noise figure 1.6 dB typical Double-diplexed preamp filters Lightweight aluminum housing Dual band (L1 and L2) performance Coaxial and external bias options Environmental sealing available Application specific packages available Suitable for new L2-C signals L5 configurations available upon request SPECTRUM MICROWAVE Filtered Low Noise Ampli/f_ier CERTIFIED Block Diagram For GPS Applications
1227 MHz/1575 MHz
Typical Performance Speci/f_ications
1227.60 MHz (L2)
All specifications above measured at 25˚C Dimensions and Connections Antenna port J1 Receiver port J2 SMA type female connectors 2.20"ø x 0.080"H excluding connectors Chassis is machined aluminum with a nickel plate finish. P/N: 310-025105-021 P/N: 310-025105-021 www.SpectrumMicrowave.com SPECTRUM MICROWAVE • 38166 Old Stage Road • Delmar, Delaware 19940 • Phone: 302-846-2750 • Fax: 302-846-3888 SPECTRUM MICROWAVE • 2707 Black Lake Place • Philadelphia, Pennsylvania 19154 • Phone: 215-464-4000 • Fax: 215-464-4001
Ampli/f_ier Gain -10 -30 1051 1251 1451 1651 1751 Frequency (MHz) DB(|S[1,1]|) Loss in dB -20 DB(|S[2,2]|) Filtered Low Noise Ampli/f_ier -25 1051 1251 1451 1651 1751 Frequency (MHz) DB(|S[2,1]|) Gain in dB .51 1.79 2.15 ø2.72 1.00 4X ø .17 thru 2X SMA Female Connector 2.20 1.36 .51 .80 Dimensions (inches) SPECTRUM MICROWAVE • 38166 Old Stage Road • Delmar, Delaware 19940 • Phone: 302-846-2750 • Fax: 302-846-3888 SPECTRUM MICROWAVE • 2707 Black Lake Place • Philadelphia, Pennsylvania 19154 • Phone: 215-464-4000 • Fax: 215-464-4001 www.SpectrumMicrowave.com