RFX8051B Production Data Sheet CMOS 5GHz WLAN 802.11ac RFeIC WITH PA, LNA AND SPDT LEN RXEN GND ANT Description 16 15 14 13 RFX8051B is a highly integrated, single-chip, single-die RFeIC (RF Front-end NC 12 GND Integrated Circuit) which incorporates key RF functionality needed for IEEE 802.11a/n/ac WLAN system operating in the 5.15-5.85GHz range. The RFX8051B architecture integrates a high-efficiency high-linearity power amplifier (PA), a low RX 11 NC noise amplifier (LNA) with bypass, the associated matching network, LO rejection, and harmonic filters all in a CMOS single-chip device. NC 10 VDD RFX8051B has simple and low-voltage CMOS control logic, and requires minimal external components. A directional coupler based power detect circuit is also integrated for accurate monitoring of output power from the PA. VDD 9 NC RFX8051B is assembled in an ultra-compact low-profile 3.0x3.0x0.55 mm 16-lead 5 6 7 8 QFN package, and is the ideal RF front-end solution for implementing 5GHz WLAN in smartphones and other platforms. DET TXEN GND TX Applications 802.11n/ac Wi-Fi Devices Notebook / Netbook / Ultrabook Tablets / MIDs Access Points / Routers Wi-Fi Media Gateways Set Top Boxes / Wireless IPTVs Consumer Electronics Other 5GHz ISM Platforms FEATURES 5GHz WLAN Single Chip, Single-Die RF Front-End Excellent ESD Protection on All Pins IC RF Ports are free of DC Voltage High Transmit Signal Linearity Meeting 802.11ac All VDD Bias Pins have Internal RF Decoupling Standard Low Noise Figure for the Receive Chain Separate TX, RX Transceiver Ports, Single High Power Capability for Received Signals in Antenna Port Bypass Mode 5GHz Power Amplifier with Low-Pass Harmonic Full On-chip Matching Circuitry Filter Minimal External Components Required Low Noise Amplifier with Bypass Mode 50-Ohm Input / Output Matching Transmit/Receive Switch Circuitry Market Proven CMOS Technology Integrated Power Detector for Transmit Power Monitor and Control 3mm x 3mm x 0.55mm Small Outline 16L QFN Package with Exposed Ground Pad Low Voltage CMOS Control Logic RoHS and REACH Compliant Low DC Power Consumption 1 Skyworks Solutions, Inc. Phone 781 376-3000 Fax 781 376-3100 sales skyworksinc.com www.skyworksinc.com RFX8051B Production Data Sheet PIN ASSIGNMENTS: Pin Number Pin Name Description 1, 3, 9, 11 NC Internally Not Connected Can be connected to GND on PCB 2 RX Output RF Port from LNA or Bypass DC Shorted to GND 4, 10 VDD DC Supply Voltage 5 DET Output Analog Voltage Proportional to the TX Antenna Power 6 TXEN CMOS Logic Input to Control TX Enable 7, 12, 14, 17 GND Ground Must Be Connected to GND on the PCB 8 TX Input RF Port for TX Signals from the Transceiver DC Shorted to GND Antenna Port RF Signal from the PA or RF Signal Applied to the LNA DC 13 ANT Shorted to GND 15 RXEN CMOS Logic Input to Control RX Enable 16 LEN CMOS Logic Input to Control LNA Enable or Bypass Mode PIN-OUT DIAGRAM: LEN RXEN GND ANT 16 15 14 13 NC 12 GND 17 GND RX 11 NC NC 10 VDD VDD 9 NC 5 6 7 8 DET TXEN GND TX (Top See-Through View) 2 Skyworks Solutions, Inc. Phone 781 376-3000 Fax 781 376-3100 sales skyworksinc.com www.skyworksinc.com