4.9 to 5.9 GHz SPDT Switch with Low-Noise Amplifier

The SKY85614-11 is an integrated, single-pole double-throw (SPDT) switch with a low-noise amplifier (LNA) intended for wireless applications. The device has a low noise figure (NF) and offers the ability to add custom filtering between the switch and LNA blocks.

The SKY85614-11 operates at 5.0 V and draws 31 mA of current. In the transmit mode, a shutdown function saves power when the device is inactive.

The FEM is manufactured in a compact, 2.3 x 2.3 mm, 16-pin Quad Flat No-Lead (QFN) package. The small footprint provides the industry’s smallest PCB area needed to implement an integrated broadband SPDT switch with LNA functionality.

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Product LifecycleIn Production
Frequency (GHz) Min.4.9
Replacement Part SKY85613-11
Frequency (GHz) Max.5.9
Typ. Current @ VDD = 3.3 V 17.5dBm (mA)
Typ. Current @ VDD = 3.6 V 17.5dBm (mA)
Typ. Current @ VCC = 3.6 V (mA)
Typ. POUT @ 3.0% EVM (dBm)
Typ. Current @ VCC = 5 V (mA)
802.11 WLAN Standarda/n
Antenna Ports
Architecture4.9 to 5.9 GHz SPDT Switch with Low-Noise Amplifier
Typ. POUT @ 2.5% EVM (dBm)
Typ. Tx Gain (dB)
Typ. POUT (dBm)
PackageQFN, 16-pin
Package (mm)2.3 x 2.3


  • Low noise figure: 1.9 dB
  • Frequency range: 4.9 to 5.9 GHz
  • High IIP3: +11 dBm
  • High gain: 17 dB
  • Bypass mode with 6 dB insertion loss
  • High transmit to receive isolation for high-power applications
  • Small QFN (16-pin, 2.3 x 2.3 mm) package (MSL1, 260 °C per JEDEC J-STD-020)

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