RFX8425 Datasheet, PDF (1/5 Pages) Skyworks Solutions Inc. – 2.4GHZ CMOS WLAN / BT DUAL-MODE RFEIC WITH PA, LNA & SP3T

RFX8425
Advanced Data Sheet
2.4GHZ CMOS WLAN / BT DUAL-MODE RFEIC WITH PA, LNA & SP3T
ANT
NC
GND
16
15
14
DET ¹
NC
13
12 GND
VMODE ²
11 NC
NC ³
10 VDD
VDD ⁴
5
TX
6
7
PA_EN GND
9 LNA_EN
8
RX
DESCRIPTION
RFX8425 is a pure CMOS-based, single-chip/single-die RFeIC (RF
Front-end Integrated Circuit) that incorporates all key RF functionality
needed for implementing high-performance RF front-end for WLAN
IEEE 802.11b/g/n and OFDM/256QAM operation in the 2.4GHz band.
The RFX8425 architecture integrates a high-efficiency high-linearity
power amplifier (PA) with harmonic filter, a directional coupler based
power detector, a low noise amplifier (LNA), an SP3T switch for
Bluetooth antenna sharing, and an additional SPDT switch for
selection between LNA and Bypass in Receive mode. All the
impedance matching components and DC-block capacitors are also
integrated to minimize the PCB footprint for system implementation.
RFX8425 is assembled in an ultra-compact, low-profile 2.3x2.3x0.45mm
16L QFN package. It has simple and low-voltage CMOS control logic,
and requires minimal external components. Designed to work in the 3.0-
3.6V voltage range, the RFX8425 is ideal RF front-end solution for
implementing 2.4GHz WLAN/BT in PC clients, tablets, and many other
mobile platforms including smartphones that have a PMIC available to
provide the required supply voltage for the RF front-end.
FEATURES
APPLICATIONS
 Combines 802.11b/g/n/ac and Bluetooth
applications
 High linearity PA for 802.11 b/g/n/ac WLAN
 Low Noise Figure WLAN Receive LNA with
Bypass for Near Range Operation
 Built in directional coupler based output
power detector
 ESD Protection Circuitry on All Ports
 DC decoupled RF Ports and VDD / RF
Isolation
 2.3x2.3x0.45mm Small Outline 16L QFN
Package with Exposed Ground Pad
 Smartphones, Feature Phones and MIDs
with WLAN/Bluetooth
 WLAN/Bluetooth Platforms Requiring
Shared Antenna
 Laptop / Netbook / Smartbook with
Embedded WiFi & Bluetooth
 Portable Platforms with Integrated
802.11b/g/n and Bluetooth
 RoHS and REACH Compliant
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Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [e-mail] • www.skyworksinc.com