SKY85707-21 Buy Now
5 GHz, 802.11n/ac Front-end Module

The SKY85707-21 is a highly-integrated, 5 GHz Front-End Module (FEM) incorporating a 5 GHz Single-Pole, Double-Throw (SPDT) transmit/receive (T/R) switch, a 5 GHz Low-Noise Amplifier (LNA) with bypass, and a 5 GHz Power Amplifier (PA) intended for mobile/portable 802.11n/ac applications and systems.

An enable/disable function is included that allows power savings during off mode. An integrated power detector with 20 dB of dynamic range is included to provide closed-loop power control within the system.

The device is provided in a compact, 16-pin 2.5 x 2.5 x 0.4 mm Quad Flat No-Lead (QFN) package.

Features

  • Integrated high performance 5 GHz PA with harmonic filter, LNA with bypass, and SPDT
  • Fully-matched input and output
  • Integrated, positive slope power detector
  • Transmit loopback mode
  • Transmit gain: 28 dB
  • Receive gain: 12 dB
  • Output power: +17 dBm, MCS7, HT40
  • Output power: +15 dBm @ 1.8% EVM, MCS9, HT80
  • Direct connection to battery with 3.6 V nominal supply voltage
  • Small, QFN (16-pin, 2.5 x 2.5 x 0.4 mm) package (MSL1, 260 °C per JEDEC J-STD-020)
Product Summary SKY85707-21: 5 GHz, 802.11n/ac Front-End Module SKY85707_21_202829A.pdf (122 KB)
ProductName : SKY85707-21
Frequency (GHz) Min. : 4.9
Frequency (GHz) Max. : 5.85
802.11 WLAN Standard : n/ac
Antenna Ports : 1
Architecture : 5 GHz Front End Module
Typ. Current @ VCC = 3.3 V (mA) :
Typ. Current @ VCC = 3.6 V (mA) : 240 (@ 17dBm)
Typ. Current @ VCC = 5 V (mA) :
Typ. Current @ VDD = 3.3 V 17.5dBm (mA) :
Typ. Current @ VDD = 3.6 V 17.5dBm (mA) :
Typ. POUT @ 2.5% EVM (dBm) :
Typ. POUT @ 3.0% EVM (dBm) : 17 (802.11n)
15 (1.8% EVM, 11ac)
Typ. POUT (dBm) :
Typ. Tx Gain (dB) : 28
VDD (V) :
VCC (V) : 3.2-4.6
Package : QFN, 16-pin
Package (mm) : 2.5 x 2.5 x 0.40
Product Information:
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