SKY65709-81 Buy Now
Low-Noise Amplifier Front-end Module with BDS/GPS/GNSS Pre-Filter

The SKY65709-81 is a Front-End Module (FEM) with an integrated Low Noise Amplifier (LNA) and pre-filter designed for the 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 LNA is fabricated using advanced silicon technology. The pre-filter provides the low in-band insertion loss and excellent rejection of the cellular, PCS, and WLAN frequency bands. The SKY65709-81 uses Surface Mount Technology (SMT) in the form of a 1.7 x 2.3 mm Multi-Chip Module (MCM) package, which allows for a highly manufacturable and low-cost solution.

Please note: SKY65709-81 is being discontinued and is not recommended for new designs. The suggested replacement is SKY65723-81.


  • Small signal gain: 14.5 dB typical
  • Low Noise Figure: 1.9 dB typical
  • Low current consumption
  • Input/output impedance internally matched to 50 Ω
  • Single DC supply: 1.8 to 3.6 V
  • Minimal number of external components required
  • Small, MCM (6-pin, 1.7 x 2.3 mm) package (MSL3, 260 °C per JEDEC J-STD-020)
Product Summary SKY65709-81: Low-Noise Amplifier Front-End Module with BDS/GPS/GNSS Pre-Filter SKY65709_81_202935C_PS_Discontinued.pdf (177 KB)
Last Time Buy Product Discontinuation: SKY65704-22, SKY65709-51, SKY65709-81 LTB_SKY65704_22_SKY65709_51_SKY65709_81.pdf (77 KB)
ProductName : SKY65709-81
Frequency (MHz) : 1561-1606
Test Frequency (MHz) : 1575
Description : BDS/GPS/GNSS Pre-Filter + LNA Front-End Module
Gain (dB) : 14.5
VDD (V) : 2.85
IP1 dB (dBm) : -10
NF (dB) : 1.9
Package : MCM, 6-pin
Package (mm) : 1.7 x 2.3 x 0.7
Product Information:
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