SKY85717-21

5 GHz, 802.11ac Front-End Module

The 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.

Product Documents

Product Summary
SKY85717-21: 5 GHz, 802.11ac Front-End Module

Features

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)

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Specifications

- Frequency (GHz) Min.
- Frequency (GHz) Max.
- Typ. Current @ V_DD = 3.3 V 17.5dBm (mA)
- Typ. Current @ V_DD = 3.6 V 17.5dBm (mA)
- Typ. Current @ V_CC = 3.6 V (mA)
- Typ. P_OUT @ 3.0% EVM (dBm)
- TBD
- Typ. Current @ V_CC = 5 V (mA)
- TBD
- 802.11 WLAN Standard
- ac
- Antenna Ports
- 1
- Architecture
- 5 GHz WLAN Front-End Module
- Typ. P_OUT @ 2.5% EVM (dBm)
- TBD
- Typ. Current @ V_CC = 3.3 V (mA)
- TBD
- Typ. Tx Gain (dB)
- TBD
- Typ. P_OUT (dBm)
- V_DD (V)
- V_CC (V)
- TBD
- Package
- QFN, 16-pin
- Package (mm)
- 2.5 x 2.5 x 0.4

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