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Nonlinearity 5GHz Wi-Fi 6 FEM


Nonlinearity 5GHz Wi-Fi 6 FEM


KCT8570N 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.

KCT8570N 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 and a digital enable control are also integrated. A coupler function is integrated to further improve the linearity of the FEM.

KCT8570N 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 highpower 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

Nominal voltage: 5V

Transmit gain: 31dB

Output power: +20dBm @ -43dB EVM with DPD, HE160/MCS11

                         +22dBm @ -41dB EVM with DPD, HE160/MCS10

                         +24dBm @ -35dB EVM with DPD, VHT80/MCS9

                         +25dBm @ -30dB EVM with DPD, HT40/MCS7,

Receive gain: 16.5dB

Noise Figure: 1.8dB

ESD protection circuitry on all PINs

Minimal external components required

Small package: QFN16-pin, 3mm x 3mm x0.75mm (MSL3, 260°C per JEDEC J-STD-020)

RoHS and REACH Compliant

Nonlinearity 5GHz Wi-Fi 6 FEM

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