DATA SHEET RFX2402E: CMOS 2.4GHz Transmit / Receive WLAN RFeIC Applications 802.11b/g/n/ac multimedia applications VDD VDD 802.11b/g/n/ac embedded applications 802.11b/g/n/ac mobile platforms RX 802.11b/g/n/ac NIC PC card Other 2.4 GHz ISM radios 802.11b/g/n/ac access point ANT Features 2.4 GHz ISM, single chip, single-die RF front-end IC TX Separate TX and RX transceiver port and single antenna port 2.4 GHz power amplifier with low-pass harmonic filter 204378-001 TXEN RXEN DET Low-noise amplifier Figure 1. RFX2402E Block Diagram Transmit/receive switch circuitry High transmit signal linearity meeting standards for OFDM and Description CCK modulation The RFX2402E is a fully integrated, single-chip, single-die RF Integrated power detector for transmit power monitor and front-end integrated circuit (RFeIC) that incorporates all the RF control functionality needed for todays wireless communications. Compatible with low voltage (1.2 V) CMOS control logic or levels up to VDD The RFX2402E architecture integrates the PA, LNA, transmit and receive switching circuitry, the associated matching network, and ESD protection circuitry on all ports a harmonic filter all in a CMOS single-chip device. DC decoupled RF ports This RFeIC is designed for use in 802.11b/g/n/ac applications Internal RF decoupling on all VDD bias pins operating at 2.4 GHz. Combining superior performance, high Low noise figure for receive channels sensitivity and efficiency, low noise, small form factor, and low High-power capability for received signals cost, the RFX2402E is the ideal solution for single antenna applications, and the ideal building block for MIMO applications. Very low DC power consumption Full on-chip matching and decoupling circuitry The RFX2402E has simple and low-voltage CMOS control logic, and requires minimal external components for system Minimal external components required implementation. The PA power detector circuit is also integrated. 50- input/output matching A functional block diagram is shown in Figure 1. The pin Market-proven CMOS technology configuration and package are shown in Figure 2. Signal pin Small QFN 16-lead (3 x 3 x 0.55 mm) package with exposed assignments and functional pin descriptions are provided in ground pad (MSL1, 260 C per JEDEC J-STD-020) Table 1. Skyworks Green products are compliant with all applicable legislation and are halogen-free. For additional information, refer to Skyworks Denition of Green, document number SQ04-0074. Skyworks Solutions, Inc. Phone 781 376-3000 Fax 781 376-3100 sales skyworksinc.com www.skyworksinc.com 204378B Skyworks Proprietary Information Products and Product Information are Subject to Change Without Notice February 21, 2020 1 1 2 3 4 DATA SHEET RFX2402E: CMOS 2.4 GHz TRANSMIT / RECEIVE WLAN RFEIC VDD GND VDD DNC 16 15 14 13 RX 12 GND GND 11 GND 17 GND GND 10 ANT TX 9 GND 5 6 7 8 204378-002 TXEN RXEN DET GND Figure 2. RFX2402E Pinout (Top View) Table 1. RFX2402E Signal Descriptions Pin Name Description Pin Name Description Received RF signal from the LNA to the transceiver DC Ground (must be connected to ground in the 1 RX 9 GND dhorted to GND application circuit) Ground (must be connected to ground in the Antenna port RF signal from the PA or RF signal 2 GND 10 ANT application circuit) applied to the LNA DC shorted to GND Ground (must be connected to ground in the Ground (must be connected to ground in the 3 GND 11 GND application circuit) application circuit) Transmitted RF signal from the transceiver to the PA: Ground (must be connected to ground in the 4 TX 12 GND DC shorted to GND application circuit) 5 TXEN CMOS input to enable the PA 13 DNC Reserved pin, do not connect in the application circuit 6 RXEN CMOS input to enable the LNA 14 VDD Alternate supply pin, internally connected to pin 16 Ground (must be connected to ground in the 7 DET Analog voltage proportional to the PA power output 15 GND application circuit) Ground (must be connected to ground in the 8 GND 16 VDD Voltage supply connection application circuit) Skyworks Solutions, Inc. Phone 781 376-3000 Fax 781 376-3100 sales skyworksinc.com www.skyworksinc.com 204378B Skyworks Proprietary Information Products and Product Information are Subject to Change Without Notice February 21, 2020 2