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5GHz 802.11ax RF Front-End Module


5GHz 802.11ax RF Front-End Module


KCT8575SD is a highly integrated RF front-end integrated circuit incorporates key RF functionality needed for IEEE 802.11a/n/ac/ax WLAN systems operating in the 5.15-5.85GHz range. It integrates a high-efficiency, high-linearity power amplifier (PA), a low noise amplifier (LNA) with bypass, the associated matching network, and harmonic filters all in one device.


KCT8575SD is a 5V supply voltage power amplifier that conserves power consumption while maintaining the highest linear output power and excellent throughput. A DC voltage output power detector is integrated for accurately monitoring of output power from the PA.


KCT8575SD is assembled in a compact, low-profile 3 x 3 x 0.75mm 16-lead QFN package, which is an ideal RF front-end solution for implementing 5GHz high-power WLAN systems supporting multiple standards including 802.11a/n/ac/ax.


Integrated 802.11ax 5GHz PA, LNA with bypass and T/R switch

Fully-matched input and output

Integrated power detector

Transmit gain: 30dB at 5V

Receive gain: 14dB at 5V

Output power:

+21.5dBm @-40dB DEVM, HE160/MCS11, 5V

+23dBm @-35dB DEVM, VHT80/MCS9, 5V

+24dBm @-30dB DEVM, HT20/MCS7, 5V

ESD protection circuitry on all PINs

Minimal external components required

Small package: QFN-16L, 3mm x 3mm x 0.75mm (MSL3, 260 per JEDEC J-STD-020)

RoHS and REACH Compliant

5GHz 802.11ax RF Front-End Module

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