GPS/GLONASS/Galileo/Compass Low-Noise Amplifier

The SKY65623-682LF is a Microwave Monolithic Integrated Circuit (MMIC) front-end low-noise amplifier (LNA) designed for Global Navigation Satellite System (GNSS) radio receiver applications. The device provides low current consumption, excellent gain, and a superior noise figure (NF). Output matching components are embedded inside the device. Only one external input matching inductor is required.

The SKY65623-682LF is optimized to operate at 1559 to 1606 MHz, which makes it ideal for GPS/GLONASS/Galileo/Compass radio receiver applications.

The SKY65623-682LF is fabricated using advanced SiGe BiCMOS technology. The LNA uses surface-mount technology (SMT) in the form of a 0.8 × 0.8 mm Quad Flat No-Lead (QFN) package, which allows for a highly manufacturable and low-cost solution.

Please note: SKY65623-682LF is being discontinued and is not recommended for new designs. The suggested replacement is SKY65624-682LF.


    • Small signal gain: 16.5 dB typical
    • Low noise figure: 0.85 dB typical
    • Out-of-band IIP3: –11.5 dBm typical
    • Low current consumption: 1 mA typical
    • Low shutdown current: 0.1 μA typical
    • Output impedance internally matched to 50 
    • Single external input matching inductor
    • Single DC supply: 1.5 to 3.6 V
    • Minimal number of external components required
    • Small QFN (5-pin, 0.8 × 0.8 mm) package (MSL1, 260 °C per JEDEC J-STD-020)

Images Diagrams


    • Frequency (MHz)
    • 1559-1606
    • Description
    • GPS/GLONASS/Galileo/Compass Low-Noise Amplifier
    • Gain (dB)
    • 16.5
    • VDD (V)
    • 1.5-3.6
    • IP1 dB (dBm)
    • -30
    • NF (dB)
    • 0.85
    • Package
    • QFN, 5-pin
    • Package (mm)
    • 0.8 x 0.8 x 0.32