【Introduction】

KCT8548HE 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.

A power detector is integrated on KCT8548HE for accurately monitoring of output power from the PA. KCT8548HE is a 5V supply voltage power amplifier that conserves power consumption while maintaining the highest linear output power and excellent throughput. The PA power detector and a digital enable control are also integrated. A coupler function is integrated to further improve the linearity of the FEM.

KCT8548HE is assembled in a compact, low-profile 3x5x0.75mm 24-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.

【Specifications】

Integrated high performance 5GHz PA, LNA with bypass and T/R switch

Fully-matched input and output

Integrated RF & DC power detector

Transmit gain: 30.5dB at 5V

Receive gain: 16.0dB at 5V

Noise figure: 1.9dB at 5V

Output power:

+16.5dBm @ -43dB HE160, MCS11 DEVM, 5V

+21.0dBm @ -40dB HE160, MCS11 DEVM, 5V

+23.0dBm @ -35dB VHT80, MCS9 DEVM, 5V

+24.0dBm @ -30dB HT20, MCS7 DEVM, 5V

ESD protection circuitry on all PINs

Minimal external components required

Small package: QFN-24L, 3mm x 5mm x 0.75mm (MSL3, 260℃ per JEDEC J-STD-020)

RoHS and REACH compliant