Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
204379B • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • April 19, 2017 1
DATA SHEET
RFX2411: 2.4 GHz Transmit / Receive Zigbee
®
RFEIC with
Diversity Switch
Applications
ZigBee extended range devices
ZigBee smart power
RF4CE remote control
Home and industrial automation
Custom 2.4 GHz radio systems
Mobile and battery Zigbee systems
Features
2.4 GHz ZigBee high-power single-chip, single-die RF front-end
IC
Antenna diversity switch
2.4 GHz transmit high-power amplifier with low-pass harmonic
filter
Low-noise amplifier
Transmit/receive switch circuitry
High transmit signal linearity meeting standards for OQPSK
modulation
Integrated power detector for transmit power monitor and
control
Low voltage (1.2 V) CMOS control logic
ESD protection circuitry on all ports
DC decoupled RF ports
Internal RF decoupling on all VDD bias pins
Low noise figure for the receive channel
Very low DC power consumption
Full on-chip matching and decoupling circuitry
Minimal external components required
50 Ω
input/output matching
Market-proven CMOS technology
Small QFN (16-lead,3.0 x 3.0 x 0.55 mm) package with exposed
ground pad
204379-001
ANTA
VDD 2 VDD 1
ANTB
8
ModePDETRXENTXEN
SWant
IND
TXRX
Figure 1. RFX2411 Block Diagram
Description
The RFX2411 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 RFX2411 architecture integrates the PA, LNA,
transmit and receive switching circuitry, the associated matching
network, a harmonic filter, and a diversity switch all in a CMOS
single-chip device. It also includes a bypass mode to provide
maximal level of flexibility for system implementations.
This RFeIC is designed for use in 2.4 GHz ISM band and supports
the 802.15.4 and ZigBee standard. Typical high-power
applications include home and industrial automation, smart
power, and RF4CE, and others. Combining superior performance,
high sensitivity and efficiency, low noise, small form factor, and
low cost, the RFX2411 is the perfect solution for applications
requiring extended range and bandwidth. The RFX2411 has
simple and low-voltage CMOS control logic, and requires minimal
external components for system implementation. The PA power
detect circuit is also integrated
.
DATA SHEET • RFX2411: 2.4 GHz TRANSMIT/RECEIVE ZIGBEE
®
RFEIC WITH DIVERSITY SWITCH
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
2 April 19, 2017 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • 204379B
Skyworks Green™ products are compliant with
all applicable legislation and are halogen-free.
For additional information, refer to Skyworks
Definition of Green™, document number
SQ04-0074.
204379-002
GND
N/C
DNC
N/C
TX/RX
1
2
3
4
5
6 789 10
11
12
13
14
15
1617181920
21
GND
TXEN RXEN PDET MODE SWANT
GND
GND
IND
ANTA
ANTB
VDD1 DNCDNCVDD2 GND
Figure 2. RFX2411 Pinout
(Top View)
Table 1. RFX2411 Signal Descriptions
Pin Name Description Pin Name Description
1, 11, 13,
19, 21
GND
Ground (must be connected to ground in the
application circuit)
10 SWant CMOS input to select antenna for diversity
2, 4 N/C No internal connection 12 ANTB
RF signal from the PA or RF signal applied to the LNA;
DC shorted to ground
5 TXRX RF signal to/from the transceiver: DC shorted to GND 14 ANTA
RF signal from the PA or RF signal applied to the LNA;
DC shorted to ground
6 TXEN CMOS input to control TX enable 15 IND Inductor to GND
7 RXEN CMOS input to control RX enable 3, 16, 17 DNC Reserved (do not connect in the application circuit)
8 PDET Analog voltage proportional to the PA power output 18 VDD1 Voltage supply connection
9 MODE CMOS input to control mode of operation 20 VDD2 Voltage supply connection