5 GHz, 802.11ac Front-End ModuleThe SKY85717-21 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 802.11ac 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.
- Integrated high-performance 5 GHz PA, 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: +19.5 dBm, MCS7, HT40
- Output power: +18.5 dBm @ 1.8% EVM, MCS9, HT80
- High-linearity and high-efficiency modes
- Direct connection to battery with 5 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)
Images & Diagrams
- Frequency (GHz) Min.
- Frequency (GHz) Max.
- 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 Standard
- Antenna Ports
- 5 GHz WLAN Front-End Module
- Typ. POUT @ 2.5% EVM (dBm)
- Typ. Current @ VCC = 3.3 V (mA)
- Typ. Tx Gain (dB)
- Typ. POUT (dBm)
- VDD (V)
- VCC (V)
- QFN, 16-pin
- Package (mm)
- 2.5 x 2.5 x 0.4
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