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Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
RFX2411N
Production Data Sheet
2.4 GHz TX / RX Booster With Diversity Switch for IoT / BLE / ZigBee
DESCRIPTION
The RFX2411N is a fully integrated, single-chip, single-die
RFeIC
®
(RF Front-end Integrated Circuit) which incorporates all
the RF functionality needed for wireless ZigBee / smart energy
applications. The RFX2411N architecture integrates a TX/RX
and diversity switching circuitry with PA, LNA, and the
associated matching networks with harmonic reduction all in a
CMOS single-chip device. It also includes a bypass mode to
provide maximal level of flexibility for system implementations.
RFX2411N is designed for the 2.4GHz ISM band and supports
standards like Bluetooth/BT EDR/ BLE, 802.15.4, ZigBee, ANT
and Thread. RFX2411N is the perfect solution for applications
requiring extended range and bandwidth. Typical high power
applications include home and industrial automation, smart
energy / smart metering, and RF4CE among others.
RFX2411N interfaces seamless with low-voltage CMOS control
logic, requires minimal external components, and provides
even an integrated PA power detector circuit. Combining
superior performance, high sensitivity, high efficiency, low
noise, small form factor, low power consumption and low cost,
RFX2411N provides an ideal and application-friendly solution.
FEATURES
Single-Chip, Single-Die CMOS IC
Transmit/Receive Switch Circuitry
Antenna Diversity Switch Circuitry
TX Power Amplifier or Bypass
RX Low Noise Amplifier or Bypass
Linearity Meeting Standards for OQPSK,
DQPSK and 8DPSK Modulations
Integrated Power Detector for Transmit Power
Monitor and Control
CMOS Control Logic
ESD Protection Circuitry on All Pins
RF Ports do not carry DC voltage
Internal RF Decoupling on VDD Bias Pins
Very Low DC Power Consumption
Operation up to 125C
o
C ambient temperature
Full On-chip Matching and Decoupling Circuitry
Minimal External Components Required
50-Ohm Input / Output Matching
Market Proven CMOS Technology
3 x 3 x 0.55mm Small Outline QFN-20 Package
with Exposed Ground Pad
APPLICATIONS
Extended Range Devices
ZigBee, ANT+, Thread, Bluetooth, BLE, RF4CE
Smart Energy / Metering / Lighting / Remote Control
Home and Industrial Automation
Custom 2.4GHz Radio Systems
Mobile and Battery Systems
NC
GND
1
2
3
4
14
13
12
11
19
18
GND
DNC
GND
GND
DNC
ANTA
VDD
VDD
GND
NC
ANTB
6
7
8
9
Mode
PDET
RXEN
TXEN
17
16
5
10
SWant
15
IND
TXRX
DNC
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Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
RFX2411N
Production Data Sheet
PIN ASSIGNMENTS:
Pin Number
Pin Name
Description
1, 11,13, 19, 21
GND
Ground – Must be connected to GND in the Application Circuit
2, 4
NC
No Internal Connection – Can be connected to GND in the Application Circuit
5
TXRX
RF signal to/from the Transceiver (at DC this pin presents a short to GND)
6
TXEN
PA Control (digital CMOS input)
7
RXEN
LNA Control (digital CMOS input)
8
PDET
Analog output providing DC voltage proportional to PA RF Power Output
9
MODE
BYPASS control (digital CMOS input )
10
SWant
ANTENNA control (digital CMOS input; selects between A and B for diversity)
12
ANTB
PA Output / LNA Input for Ant B (at DC this pin presents a short to GND)
14
ANTA
PA Output / LNA Input for Ant A (at DC this pin presents a short to GND)
15
IND
Inductor to GND (choice of value impacts 2
nd
harmonic)
3, 16, 17
DNC
Reserved – Do Not Connect at the PCB level in the Application Circuit
18, 20
VDD
Voltage Supply (Internally Connected to each other)
PIN-OUT DIAGRAM:
DNC
GND
NC
DNC
NC
TXRX
1
2
3
4
5
6 7 8 9 10
11
12
13
14
15
1617181920
21
GND
TXEN RXEN PDET MODE SWANT
GND
GND
IND
ANTA
ANTB
VDD DNCDNCVDD GND