KCT8578N 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 5.15-5.925GHz range. It integrates a high-efficiency, Non-linear power amplifier (PA) + T/R switch + low noise amplifier (LNA) with dual gain steps and with LNABypass, the associated matching network and harmonic filters all in one device.

 

KCT8578N provides an excellent heat dissipation environment for Wi-Fi 7 network equipment which have multiple RF paths configuration. It achieves ultra-low power consumption while providing a competitive EVM level when cooperates with the DPD algorithm. A DC voltage output power detector and a directional RF coupler are integrated to support closed-loop power control within the system.

 

KCT8578N is assembled in a compact, low-profile 3x5x0.812mm 24-lead LGA 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.

 

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

Fully-matched input and output

Integrated RF & DC power detector

Transmit gain: 30.0dB at 5V & 29.5dB at 4.2V

Receive gain: 17.0dB at High-gain mode, 5V&4.2V

5.0dB at Mid-gain mode, 5V&4.2V

Noise Figure: 2.0dB at High-gain mode, 5V&4.2V

2.5dB at Mid-gain mode, 5V&4.2V

Output power:

+22.0dBm @ -43dB DEVM with DPD, EHT160/MCS13, 5V

+23.0dBm @ -40dB DEVM with DPD, HE160/MCS11, 5V

+24.0dBm @ -35dB DEVM with DPD, VHT80/MCS9, 5V

+25.0dBm @ -30dB DEVM with DPD, HT20/MCS7, 5V

+20.5dBm @ -43dB DEVM with DPD, EHT160/MCS13, 4.2V

+21.0dBm @ -40dB DEVM with DPD, HE160/MCS11, 4.2V

+22.5dBm @ -35dB DEVM with DPD, VHT80/MCS9, 4.2V

+23.0dBm @ -30dB DEVM with DPD, HT20/MCS7, 4.2V

ESD protection circuitry on all PINs

Minimal external components required

Small package: LGA-24L, 3mm x 5mm x 0.812mm (MSL3, 260℃ per JEDEC J-STD-020)

RoHS and REACH Compliant