DATA SHEET
RFX2402E: CMOS 2.4GHz Transmit / Receive WLAN RFeIC
Applications
802.11b/g/n/ac multimedia applications
VDD
VDD
802.11b/g/n/ac embedded applications
802.11b/g/n/ac mobile platforms
802.11b/g/n/ac NIC PC card
RX
Other 2.4 GHz ISM radios
802.11b/g/n/ac access point
ANT
Features
2.4 GHz ISM, single chip, single-die RF front-end IC
TX
Separate TX and RX transceiver port and single antenna port
2.4 GHz power amplifier with low-pass harmonic filter
TXEN
Low-noise amplifier
RXEN
DET
204378-001
Figure 1. RFX2402E Block Diagram
Transmit/receive switch circuitry
High transmit signal linearity meeting standards for OFDM and
CCK modulation
Description
Integrated power detector for transmit power monitor and
control
The RFX2402E is a fully integrated, single-chip, single-die RF
front-end integrated circuit (RFeIC) that incorporates all the RF
functionality needed for today’s wireless communications.
Compatible with low voltage (1.2 V) CMOS control logic or levels
up to VDD
ESD protection circuitry on all ports
DC decoupled RF ports
Internal RF decoupling on all VDD bias pins
Low noise figure for receive channels
High-power capability for received signals
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 x 3 x 0.55 mm) package with exposed
ground pad (MSL1, 260 C per JEDEC J-STD-020)
The RFX2402E architecture integrates the PA, LNA, transmit and
receive switching circuitry, the associated matching network, and
a harmonic filter all in a CMOS single-chip device.
This RFeIC is designed for use in 802.11b/g/n/ac applications
operating at 2.4 GHz. Combining superior performance, high
sensitivity and efficiency, low noise, small form factor, and low
cost, the RFX2402E is the ideal solution for single antenna
applications, and the ideal building block for MIMO applications.
The RFX2402E has simple and low-voltage CMOS control logic,
and requires minimal external components for system
implementation. The PA power detector circuit is also integrated.
A functional block diagram is shown in Figure 1. The pin
configuration and package are shown in Figure 2. Signal pin
assignments and functional pin descriptions are provided in
Table 1.
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.
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
204378B • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • February 21, 2020
1
DATA SHEET • RFX2402E: CMOS 2.4 GHz TRANSMIT / RECEIVE WLAN RFEIC
VDD
16
GND
15
VDD
14
DNC
13
RX 1
12 GND
GND 2
11 GND
17
GND
GND 3
TX
10 ANT
4
9 GND
5
6
TXEN
RXEN
7
8
DET
GND
204378-002
Figure 2. RFX2402E Pinout
(Top View)
Table 1. RFX2402E Signal Descriptions
Pin
Name
Description
Pin
Name
Description
1
RX
Received RF signal from the LNA to the transceiver; DC
dhorted to GND
9
GND
Ground (must be connected to ground in the
application circuit)
2
GND
Ground (must be connected to ground in the
application circuit)
10
ANT
Antenna port RF signal from the PA or RF signal
applied to the LNA; DC shorted to GND
3
GND
Ground (must be connected to ground in the
application circuit)
11
GND
Ground (must be connected to ground in the
application circuit)
4
TX
Transmitted RF signal from the transceiver to the PA:
DC shorted to GND
12
GND
Ground (must be connected to ground in the
application circuit)
5
TXEN
CMOS input to enable the PA
13
DNC
Reserved pin, do not connect in the application circuit
6
RXEN
CMOS input to enable the LNA
14
VDD
Alternate supply pin, internally connected to pin 16
7
DET
Analog voltage proportional to the PA power output
15
GND
Ground (must be connected to ground in the
application circuit)
8
GND
Ground (must be connected to ground in the
application circuit)
16
VDD
Voltage supply connection
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
204378B • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • February 21, 2020
2
DATA SHEET • RFX2402E: CMOS 2.4 GHz TRANSMIT / RECEIVE WLAN RFEIC
Electrical and Mechanical Specifications
The absolute maximum ratings of the RFX2402E are provided in
Table 2. The recommended operating conditions are specified
in Table 3.
The electrical specifications are provided in Table 4. Figure 3
provides a control signal diagram. The state of the RFX2402E is
determined by the logic provided in Table 5.
Table 2. RFX2402E Absolute Maximum Ratings1
Parameter
Conditions
Minimum
Maximum
Units
DC VDD voltage supply
All VDD pins
0
4.5
V
DC control pin voltage
Through 1 kΩ resistor
0
3.6
V
DC VDD current consumption
Through VDD pins when TX is ON
350
mA
1
μA
+10
dBm
+5
dBm
150
°C
DC control pin current consumption
TX RF input power
All operating modes
ANT RF input power
When RX is “ON”
Junction temperature
No RF and DC voltages applied
Storage ambient temperature
Appropriate care required according
to JEDEC standards
-50
o
+150
C
1 Exposure to maximum rating conditions for extended periods may reduce device reliability. There is no damage to device with only one parameter set at the limit and all other parameters
set at or below their nominal value. Exceeding any of the limits listed here may result in permanent damage to the device. All maximum RF input power ratings assume 50 Ω terminal
impedance.
ESD HANDLING: Although this device is designed to be as robust as possible, electrostatic discharge (ESD) can damage this device.
This device must be protected at all times from ESD when handling or transporting. Static charges may easily produce
potentials of several kilovolts on the human body or equipment, which can discharge without detection.
Industry-standard ESD handling precautions should be used at all times.
Table 3. RFX2402E Recommended Operating Conditions1
Parameter
Conditions
Min
Typ
Max
Units
3.3
3.6
V
DC VDD voltage supply
All VDD pins
2.7
Control voltage high1
Through 1 kΩ resistor
1.2
V
Control voltage low
0.3
DC control pin current consumption
DC shutdown current
All control lines low
V
1
uA
2
uA
PA turn on/off time
0.5
usec
LNA turn on/off time
0.8
usec
Shutdown and ON state switching time
Operating ambient temperature
ja
0.5
Note 2
-40
usec
o
+125
35
o
C
C/W
1 If control voltage can exceed 1.8 V, a 1 kΩ - 10 kΩ series resistor is recommended for the application circuit on each control line.
2 For operation above +85 °C, use the ja as guidance for system design to assure the junction temperature will not exceed the maximum of +150 °C.
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
204378B • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • February 21, 2020
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DATA SHEET • RFX2402E: CMOS 2.4 GHz TRANSMIT / RECEIVE WLAN RFEIC
Table 4. RFX2402E Electrical Specifications1 (VDD = 3.3 V, TA = 25 °C, Unless Otherwise Noted)
Parameter
Frequency range
Symbol
f
Test Condition
All RF pins terminated by 50 Ω
Min
Typ
2.4
Max
Units
2.5
GHz
Transmit Mode
Output P1dB
CW
+24
dBm
Linear output power 802.11b
1 Mbps CCK, Mask Compliance
+21
dBm
Linear output power 802.11n
54 Mbps OFDM, EVM < -33dB at ANT
+17
dBm
Linear output power 802.11g
54 Mbps OFDM, EVM < -30 dB at ANT
+18
dBm
Large-signal power gain in all modes
POUT = +18 dBm
28
dB
Small-signal power gain in all modes
POUT = 0 dBm
28.5
dB
TX quiescent current
No RF applied
80
mA
TX linear current
POUT = +18 dBm
140
mA
Power detector voltage output
POUT = +5 to +20 dBm
0.25-1.6
V
Second harmonic (CW)
POUT = +20 dBm, CW at ANT pin
-30
dBc
Third harmonic (CW)
POUT = +20dBm, CW at ANT pin
n35
dBc
Modulated second harmonic
POUT = +20 dBm, 802.11n HT40
-26
dBm/MHz
Modulated third harmonic
POUT = +20 dBm, 802.11n HT40
-30
dBm/MHz
Input return loss
-10
dB
Output return loss
-12
dB
Input output impedance single-ended
50
Ω
-7
dBm
Gain
11
dB
Noise figure
3
dB
Input return loss
-12
dB
Output return loss
-10
dB
TX leakage to RX port
POUT = +20 dBm at ANT
Receive Mode
Rf port impedance
Rx quiescent current
No RF applied
Input p1db
50
Ω
9
mA
-5
dBm
1 Performance is guaranteed only under the conditions listed in this table.
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
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DATA SHEET • RFX2402E: CMOS 2.4 GHz TRANSMIT / RECEIVE WLAN RFEIC
Don’t Care
RXEN
TXEN
Shutdown
Transmit
Receive
204378-003
Figure 3. RFX2402E Control Signal Diagram
Table 5. RFX2402E Control Logic1
Operating Conditions
TXEN
RXEN
0
0
RX active
0
1
TX active
1
x
Shutdown
1 “1” denotes high voltage state (> 1.2 V)
“0” denotes low voltage stage (< 0.3 V) at control pins
“X” denotes do not care: either “1” or “0” can be applied
Package Dimensions
Package and Handling Information
The PCB layout footprint for the RFX2402E is shown in Figure 4.
Typical part markings are shown in Figure 5. Package
dimensions are shown in Figure 6, and tape and reel
dimensions are provided in Figure 7.
Instructions on the shipping container label regarding exposure
to moisture after the container seal is broken must be followed.
Otherwise, problems related to moisture absorption may occur
when the part is subjected to high temperature during solder
assembly.
The RFX2402E is rated to Moisture Sensitivity Level 1 (MSL1) at
260 C. It can be used for lead or lead-free soldering. For
additional information, refer to the Skyworks Application Note,
Solder Reflow Information, document number 200164.
Care must be taken when attaching this product, whether it is
done manually or in a production solder reflow environment.
Production quantities of this product are shipped in a standard
tape and reel format.
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
204378B • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • February 21, 2020
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DATA SHEET • RFX2402E: CMOS 2.4 GHz TRANSMIT / RECEIVE WLAN RFEIC
0. 25mm
0.25mm
0.5mm
0. 65 mm
1. 7 mm x
1.7mm
3.5 mm
0.65mm
0.625mm
3.0mm
204378-004
Figure 4. RFX2402E PCB Layout Footprint
(Top View)
Figure 5. Typical Part Markings
(Top View)
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
204378B • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • February 21, 2020
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DATA SHEET • RFX2402E: CMOS 2.4 GHz TRANSMIT / RECEIVE WLAN RFEIC
Figure 6. RFX2402E Package Dimensions
Figure 7. RFX2402E Tape and Reel Dimensions
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
204378B • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • February 21, 2020
7
DATA SHEET • RFX2402E: CMOS 2.4 GHz TRANSMIT / RECEIVE WLAN RFEIC
Ordering Information
Part Number
RFX2402E
Product Description
CMOS 2.4 GHz Transmit / Receive WLAN RFeIC
Evaluation Board Part Number
RFX2402E-EK1
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Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
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