SKY65605-21 Buy Now
BDS/GPS/GNSS Low-Noise Amplifier

The SKY65605-21 is a Microwave Monolithic Integrated Circuit (MMIC) front-end low-noise amplifier (LNA) designed for BeiDou Satellite Navigation System/Global Positioning System/Global Navigation Satellite System (BDS/GPS/GNSS) receiver applications. The device provides high linearity, excellent gain, a high 1 dB input compression point (IP1dB), and a superior noise figure (NF).

The SKY65605-21 is optimized to operate from 1.559 to 1.606 GHz, which makes it ideal for BDS/GPS/GNSS radio receiver applications.

The SKY65605-21 is fabricated using advanced SiGe BiCMOS technology. The LNA uses surface-mount technology (SMT) in the form of a 0.7 x 1.1 mm Quad Flat No-Lead (QFN) package, which allows for a highly manufacturable and low-cost solution.


  • Small signal gain: 19 dB typical
  • High in-band IIP3: –5 dBm
  • Low noise figure: 0.6 dB typical
  • High IP1dB: –14.5 dBm
  • Low current consumption: 3.6 mA
  • Input/output impedance internally matched to 50 Ω
  • Single DC supply: 1.8 to 2.85 V
  • Minimal number of external components required
  • Ultra-small QFN (6-pin, 0.7 x 1.1 mm) package (MSL1, 260 °C per JEDEC J-STD-020)
Data Sheets SKY65605-21: BDS/GPS/GNSS Low-Noise Amplifier SKY65605_21_203118G.pdf (674 KB)
ProductName : SKY65605-21
Frequency (MHz) : 1559-1606
Test Frequency (MHz) : -
Description : BDS/GPS/GNSS Low-Noise Amplifier
Gain (dB) : 19
VDD (V) : -
IP1 dB (dBm) : -14.5
NF (dB) : 0.6
Package : QFN, 6-pin
Package (mm) : 0.7 x 1.1
Product Information:
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