【Introduction】

KCT8573ST is a highly integrated RF front-end integrated circuit incorporates key RF functionality needed for IEEE 802.11a/n/ac/ax/be WLAN systems operating in the 5.15-5.85GHz range. It integrates a highefficiency, high-linearity power amplifier (PA) + T/R switch + low noise amplifier (LNA) with dual gain steps and with LNA-Bypass, the associated matching network and harmonic filters all in one device.

KCT8573ST 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 directional RF coupler are integrated to support closed-loop power control within the system.

KCT8573ST is assembled in a compact, low-profile 3x3x0.75mm 20-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/be.

【Specifications】

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

Fully-matched input and output

 Integrated DC & RF power detector

 Operating Frequency: 5.15~5.85GHz

 Transmit gain: 32.5dB at 5V

 Receive gain:

14dB at High-gain mode, 5V

6dB at Mid-gain mode, 5V

 Noise Figure:

2.0dB at High-gain mode, 5V

2.4dB at Mid-gain mode, 5V

Output power:

+18.5dBm @ -43dB DEVM, EHT160/MCS13, 5V

+20.5dBm @ -40dB DEVM, HE160/MCS11, 5V

+22.5dBm @ -35dB DEVM, VHT80/MCS9, 5V

+23.5dBm @ -30dB DEVM, HT20/MCS7, 5V

ESD protection circuitry on all PINs

Minimal external components required

Small package: QFN-20L, 3mm x 3mm x 0.75mm (MSL3, 260℃ per JEDEC J-STD-020)

RoHS and REACH Compliant