Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
RFX8051B
Production Data Sheet
CMOS 5GHz WLAN 802.11ac RFeIC WITH PA, LNA AND SPDT
Description
RFX8051B is a highly integrated, single-chip, single-die RFeIC (RF Front-end
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
noise amplifier (LNA) with bypass, the associated matching network, LO rejection,
and harmonic filters all in a CMOS single-chip device.
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.
RFX8051B is assembled in an ultra-compact low-profile 3.0x3.0x0.55 mm 16-lead
QFN package, and is the ideal RF front-end solution for implementing 5GHz WLAN
in smartphones and other platforms.
Applications
802.11n/ac Wi-Fi Devices
Tablets / MIDs
Wi-Fi Media Gateways
Consumer Electronics
Notebook / Netbook / Ultrabook
Access Points / Routers
Set Top Boxes / Wireless IPTVs
Other 5GHz ISM Platforms
5GHz WLAN Single Chip, Single-Die RF Front-End
IC
High Transmit Signal Linearity Meeting 802.11ac
Standard
Separate TX, RX Transceiver Ports, Single
Antenna Port
5GHz Power Amplifier with Low-Pass Harmonic
Filter
Low Noise Amplifier with Bypass Mode
Transmit/Receive Switch Circuitry
Integrated Power Detector for Transmit Power
Monitor and Control
Low Voltage CMOS Control Logic
Low DC Power Consumption
Excellent ESD Protection on All Pins
RF Ports are free of DC Voltage
All VDD Bias Pins have Internal RF Decoupling
Low Noise Figure for the Receive Chain
High Power Capability for Received Signals in
Bypass Mode
Full On-chip Matching Circuitry
Minimal External Components Required
50-Ohm Input / Output Matching
Market Proven CMOS Technology
3mm x 3mm x 0.55mm Small Outline 16L QFN
Package with Exposed Ground Pad
RoHS and REACH Compliant
16
5
15 14 13
6 7 8
9
10
11
12
NC
RX
NC
VDD
DET GND
LEN
GND
NC
VDD
NC
TXEN
RXEN ANTGND
TX
