DAT A SHE ET
SE2521A80: 2.4 GHz Wireless LAN Front-End
Preliminary
Skyworks Solutions, Inc. • Pho ne [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
202417A • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • September 25, 2012 1
Applications
IEEE802.11b DSSS WLAN
IEEE802.1 1g OFDM WLAN
Access Points, PCMCIA, PC cards
Features
Dual Mode IEEE802.11b & IEEE802.11g
All RF ports matched to 50 Ω
Integrated PA, TX Filter, DPDT T/R and Diversity
switches
Integrated Power Detector
20 dBm @ 3.0 % EVM, 802.11g, 54 Mbits
20 dBm, 802.11b, ACPR = -37 dBr, 11 Mbits
Single supply voltage: 3.3 V ± 10 %
Small lead free package, 8 mm x 7 mm x 1.2
mm, MSL 3
Ordering Information
Part Number Package Remark
SE2521A80
24 pin LGA
Samples
SE2521A80-R
24 pin LGA
Tape and Reel
SE2521A80-EK1
N/A
Evaluation kit
Product Description
The SE2521A80 is a complete 802.11 b/g WLAN RF
front-end module providing all the functionality of the
power amplifier, power detector, T/R switch, diversity
switch and associated matching. The SE2521A80
provides a complete 2.4 GHz W LAN RF solution from
the output of the transceiver to the antennas in an
ultra compact form factor.
Designed for ease of use, all RF ports are matched to
50 Ω to simplify PCB layout and the interface to the
transceiver RFIC. The SE2521A80 also includes a
transmitter power detector with 20 dB of dynamic
range and a digital enable control for transmitter
power ramp on/off control. The power ramp rise/fall
time is 1 μsec typical.
The SE2521A80 is pin for pin compatible to
Skyworks’ SE2521A34 for easy transition of medium
power designs to higher power designs.
The device also provides a notch filter from 3.2-3.3
GHz prior to the input of the power amplifier.
Functional Block Diagram
Bias Circuitry
Power
Detector
ANT _B (50 Ohm)
C1
PD_OUT
TX
EN
50 Oh m
Match
RX
OUT
Switch
Control
C3
C2
C4
50 Oh m
Match
TX
IN
50 Oh m
OM N + LPF
V
CC
Notch
Filter
V
CC3
ANT _A (50 Ohm)
Switch
Figure 1: Functional Block Diagram
DAT A SHE ET
SE2521A80: 2.4 GHz Wireless LAN Front-End
Preliminary
Skyworks Solutions, Inc. • Pho ne [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
202417A • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • September 25, 2012 2
Pin Out Diagram
1GND
2VCC3
3VCC
4GND
5GND
17 C4
16 C3
15 C2
14 C1
13 PD_OUT
24 23 22 21 20 19
GND
GND
GND
ANT_A
GND
GND
67 8 910 11
TX_IN
GND
GND
GND
RX_OUT
N/C
18
ANT_B
12
TXEN
Figure 2: SE2521A80 Pin-Out (Top View Through Package)
Pin Out Description
Pin No. Name Description
1 GND Ground
2 VCC3 +3.3 V DC for 3
rd
stage pow er amplifi er collector voltage
3 VCC +3.3 V DC
4,5 GND Ground
6 TX_IN Transmit Input
7,8,9 GND Ground
10 RX_OUT Receive Output
11 N/C No Connect
12 TXEN Transmit Enable
13 PD_OUT Power Detector
14 C1 Control 1 Input
15 C2 Control 2 Input
16 C3 Control 3 Input
17 C4 Control 4 Input
18 ANT_B Antenna B (50 ohm)
19,20 GND Ground
21 ANT_A Antenna A (50 ohm)
DAT A SHE ET
SE2521A80: 2.4 GHz Wireless LAN Front-End
Preliminary
Skyworks Solutions, Inc. • Pho ne [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
202417A • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • September 25, 2012 3
Pin No. Name Description
22,23,24 GND Ground
Absolute Maximum Ratings
These are stress ratings only. Exposure to stresses beyond these maximum ratings may cause permanent damage
to, or affect the reliability of the device. Avoid operating the device outside the recommended operating conditions
defined below. This device is ESD sensitive. Handling and assembly of this device should be at ESD protected
workstations.
Symbol Definition Min. Max. Unit
VCC Supply Voltage on VCC -0.3 4.0 V
TXEN Power Amplifier Enable -0.3 4.0 V
TXRF RF Input Power - 2.0 dBm
TA Operating Temperature Range -20 85 °C
TSTG Storage Temperature Range -40 150 °C
Recommended Operating Conditions
Symbol Parameter Min. Typ. Max. Unit
VCC Supply Voltage 3.0 3.3 3.6 V
TA Ambient Temperature 0 25 85 °C
DC Electrical Characteristics
Conditions: VCC = VEN = 3.3 V, TA = 25 °C, as measured on Skyworks Solutions’ SE2521A80-EV1 evalu ation board
(de-embedded to device), all unused ports terminated with 50 ohms, unless otherwise noted
Symbol Parameter Conditions Min. Typ. Max. Unit
ICC-G Total Supply Current POUT = 20 dBm, 54 Mbps
OFDM signal, 64 QAM - 275 - mA
ICC-B Total Supply Current POUT = 20 dBm, 11 Mbps
CCK signal, BT = 0.45 - 300 - mA
ICC_OFF Total Supply Current VEN = 0 V, No RF Applied,
C1 = C2 = C3 = C4 = 0 V - 2 10 μA
DAT A SHE ET
SE2521A80: 2.4 GHz Wireless LAN Front-End
Preliminary
Skyworks Solutions, Inc. • Pho ne [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
202417A • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • September 25, 2012 4
Logic Characteristics
Conditions: VCC = VEN = 3.3 V, TA = 25 °C, as measured on Skyworks Solutions’ SE2521A80-E V1 ev alu ation board
(de-embedded to device), all unused ports terminated with 50 ohms, unless otherwise noted.
Symbol Parameter Conditions Min. Typ. Max. Unit
VENH Logic High Voltage
(Module On) - 2.0 - VCC V
VENL Logic Low Voltage
(Module Off) - 0 - 0.5 V
IENH Input Current Logic
High Voltage - - 100 200 μA
IENL Input Current Logic
Low Voltage - - 0.2 - μA
Switch Characteristics
Conditions: VCC = VEN = 3.3 V, TA = 25 °C, as measured on Skyworks Solutions’ SE2521A80-E V1 ev alu ation board
(de-embedded to device), all unused ports terminated with 50 ohms, unless otherwise noted.
Symbol Parameter Conditions Min. Typ. Max. Unit
VCTL_ON Control Voltage
(On State) - 3.0 - 3.6 V
VCTL_OFF Control Voltage
(OFF State) - 0.0 - 0.2 V
SWON Low Loss Switch
Control Voltage High State = VCTL_ON -
VCTL_OFF 2.8 - VCC V
SWOFF High Loss Switch
Control Voltage Low State = VCTL_OFF -
VCTL_OFF 0 - 0.3 V
ICTL_ON Switch Control Bias
Current (RF Applied)
On pin (C1,C2,C3,C4)
being driven high. RF
Applied - - 100 µA
ICTL_ON Switch Control Bias
Current (No RF) On pin (C1,C2,C3,C4)
being driven high. No RF - - 30 µA
CCTL Control Input
Capacitance - - - 100 pF
Switch Control Logic Table
Switch Logic Oper ational Mod e
C1 C4 C2 C3 TXRF – ANTA TXRF – ANTB RXRF – ANTA RXRF – ANTB
SWON SWOFF SWOFF SWOFF ON OFF OFF OFF
SWOFF SWON SWOFF SWOFF OFF ON OFF OFF
SWOFF SWOFF SWON SWOFF OFF OFF ON OFF
SWOFF SWOFF SWOFF SWON OFF OFF OFF ON
DAT A SHE ET
SE2521A80: 2.4 GHz Wireless LAN Front-End
Preliminary
Skyworks Solutions, Inc. • Pho ne [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
202417A • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • September 25, 2012 5
AC Elect r i cal Characteristics
802.11g Transmit Characteristics
Conditions: VCC = VEN = 3.3 V, TA = 25 °C, as measured on Skyworks Solutions’ SE2521A80-EV1 ev alu at ion board
(de-embedded to device), all unused ports terminated with 50 ohms, unless otherwise noted.
Symbol Parameter Condition Min. Typ. Max. Unit
FIN Frequency Range - 2400 - 2500 MHz
P802.11g Output power 54 Mbps OFDM signal,
64QAM, EVM = 3.0 % - 20 - dBm
P802.11b Output power
11 Mbps CCK signal,
BT = 0.45
ACPR(Adj) < -35 dBr
ACPR(Alt) < -55 dBr
- 20 - dBm
P1dB P1dB - - 26 - dBm
S21 Small Signal Gain - 27.0 30 34.0 dB
ΔS21 Small Signal Gain
Variation Over Band - - 1.0 2.5 dB
S213.2 Gain @ 3.2 to 3.3 GHz - - 3 7 dB
2f,3f Harmonics Pout = 20 dBm, 2 Mbps,
802.11b CCK - -47 -42 dBm/MHz
IM3 3rd Order I nter-
modulation f1 and f2 at Fc +/- 312.5
kHz, P = 20 dBm - -35 - dBc
IM5 5th Order Inter-
modulation f1 and f2 at Fc +/- 312.5
kHz, P = 20 dBm - -50 - dBc
tr Rise Time 10 % to 90% of final
output power level - 0.20 - μs
tdr, tdf Delay and rise/fall
Time
50 % of VEN edge and
90/10 % of final output
power level - 1.0 - μs
S11 Input Return Loss - 6.5 9.5 - dB
STAB Stability PIN ≤ -2 dBm
Load VSWR = 6:1 All non-harmonically related outputs less than
-50 dBc/MHz
Receive Characteristics
Conditions: VCC = VEN = 3.3 V, TA = 25 °C, as measured on Skyworks Solutions’ SE2521A80-EV1 evaluation boar d
(de-embedded to device), all unused ports terminated with 50 ohms, unless otherwise noted.
Symbol Parameter Condition Min. Typ. Max. Unit
FOUT Frequency Range - 2400 - 2500 MHz
DAT A SHE ET
SE2521A80: 2.4 GHz Wireless LAN Front-End
Preliminary
Skyworks Solutions, Inc. • Pho ne [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
202417A • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • September 25, 2012 6
Symbol Parameter Condition Min. Typ. Max. Unit
RXIL Insertion Loss - - 0.8 1.2 dB
RXRL Return Loss - - -15 -10 dB
Delta Rx Delta between Rx
paths ANT_A to RX_OUT or
ANT_B to RX_OUT - - 0.5 dB
TRISOL-2 Rx Leakage
C1 or C4 = SWON, C2 =
C3 = SWOFF, Device
transmitting 20 dBm @
ANTA or ANTB, Power
measured @ RX_OUT
- - 6 dBm
ANTRISOL Isolation between
ANT_A and ANT_B to
RX_OUT
Small signal input into
ANT_A or ANT_B, Device
not transmitting, Power
measured @ RX_OUT,
C1 AND C4 = SWON, C2
and C3 = SWOFF
14 - 24 dB
DAT A SHE ET
SE2521A80: 2.4 GHz Wireless LAN Front-End
Preliminary
Skyworks Solutions, Inc. • Pho ne [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
202417A • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • September 25, 2012 7
Power Detector Characteristics
Conditions: VCC = VEN = 3.3 V, TA = 25 °C, as measured on Skyworks Solutions’ SE2521A80-EV1 ev alu ation boar d
(de-embedded to device), unl e ss otherwise noted.
Symbol Parameter Condition Min. Typ. Max. Unit
FOUT Frequency Range - 2400 - 2500 MHz
PDR Power detect range,
peak power Measured at ANT_A or
ANT_B 0 - 20 dBm
PDZLOAD DC load impedan ce - - 2.6 - kohm
PDVNoRF Output Voltage, POUT =
No RF - 0.90 0.96 1.04 V
PDVp20 Output Voltage, POUT =
20 dBm - - 0.50 - V
PDVp22 Output Voltage, POUT =
22 dBm - - 0.37 - V
S E2521A80 P o wer Detector Respo n se
0
0.2
0.4
0.6
0.8
1
57911 13 15 17 19 21 23 25
POUT (d Bm)
VDET (V)
Figure 3: SE2521A80 Power Detector Performance Curve
DAT A SHE ET
SE2521A80: 2.4 GHz Wireless LAN Front-End
Preliminary
Skyworks Solutions, Inc. • Pho ne [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
202417A • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • September 25, 2012 8
Typical Performance Data
Conditions: VCC = VEN = 3.3 V, Chann el = 7, TA = 25 °C, as measured on Skyworks Solutions’ SE2521A80-EV1
evaluation board , all unused ports terminated with 50 ohms, unless otherwise noted.
802.11g Typical Performance
Conditions: 54Mbps 802.11g OFDM Signal
S E2521A80 802.11g EV M vs. P
OUT
over Fre quency
0
1
2
3
4
5
5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21
P
OUT
(d Bm)
EVM (%)
2400 MHz 2425 MHz 2450 MHz 2500 MHz
S E2521A80 802.11g EV M vs. POUT ove r Vol ta ge
0
1
2
3
4
5
11 12 13 14 15 16 17 18 19 20 21
POUT (dBm)
EVM (%)
2.7 V 3 V 3.3 V 3.6 V
(a) (b)
Figure 4: SE2521A80 802.11g 54 Mbps EVM vs. POUT (a) Over Frequency (b) Over Voltage
802.11b Perfor m ance
S E2521A80 802.11b ACP R vs. P
OUT
-70
-65
-60
-55
-50
-45
-40
-35
-30
15 16 17 18 19 20 21 22 23 24 25
P
OUT
(d Bm)
ACP R (d Bc )
ACPR-ADJ ACPR-ALT
S E2521A80 Har mo n i cs vs. P
OUT
(802. 11b CCK 1Mb p s)
-70
-65
-60
-55
-50
-45
10 11 12 13 14 15 16 17 18 19 20
P
OUT
(d Bm)
Harmo n ic (d Bm/ 1MHz)
2fo 3fo
(a) (b)
Figure 5: SE2521A80 802.11b Performance (a) ACPR vs. POUT, (b) Harmonics vs. POUT
DAT A SHE ET
SE2521A80: 2.4 GHz Wireless LAN Front-End
Preliminary
Skyworks Solutions, Inc. • Pho ne [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
202417A • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • September 25, 2012 9
CW Typical Performance
S E2521A80 P1dB, Small Sig n al Gai n vs. Fr equ ency
26
26.5
27
27.5
28
28.5
29
2400 2420 2440 2460 2480 2500
Fre que ncy (MHz)
P 1dB (d Bm)
27
28
29
30
31
32
33
SSG (dB)
P1dB SSG
S E2521A80 I
CC
vs. P
OUT
over Fre quency
100
200
300
400
500
600
6 8 10 12 14 16 18 20 22 24 26
P
OUT
(d Bm)
I
CC
(mA)
2400 MHz 2425 MHz 2450 MHz 2500 MHz
(a) (b)
SE2521A80 Power De te ctor Re sponse ove r Fre quency
0
0.2
0.4
0.6
0.8
1
57911 13 15 17 19 21 23 25
P
OUT
(d Bm)
VDET (V)
2400 MHz 2425 MHz 2450 MHz 2500 MHz
(c)
Figure 6: SE2521A80 CW Typical Performance (a) P1dB, Gain vs. Frequency, (b) ICC vs. POUT over Frequency
and (c) Power Detector Response over Frequency
DAT A SHE ET
SE2521A80: 2.4 GHz Wireless LAN Front-End
Preliminary
Skyworks Solutions, Inc. • Pho ne [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
202417A • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • September 25, 2012 10
Package Information
Figure 7 shows the detailed device package diagram. The pads on the Skyworks RF modules are plated with gold
over nickel, with a gold thickness of nominally 0.75 um. The modules can be reflowed onto FR4 based material using
eutectic SnPb or common tin based Pb free solder pastes.
GND
GND
GND
GNDGND
GNDGND
GNDGND
GND GND GND GNDGND
TOP SIDE
BOTTOM SIDE
NOTES :
SIGNAL PAD
DETAIL
GROUND PAD
DETAIL
24
23
22
21
20
19
18
17 16 15 14 13
12
11
10
9
8
7
6
5
4
3
21
GND GND GND
GND
GND
24
23
22
21
20
19
18
17
1615
14
13
12
11
10
9
8
7
6
5432 1
GND
GND
GND
GND
GND
GNDGNDGNDGNDGND
GND
GND
GND
GND
GND GND GND GND
GND
Figure 7: SE2521A80 Package Diagram
Package Handling Information
Because of its sensitivity to moisture absorption, instructions on the shipping container label must be followed
regarding exposure to moisture after the container seal is broken, otherwise, problems related to moisture absorption
may occur when the part is subjected to high temperature during solder assembly. The SE2521A80 is capable of
withstanding a Pb free solder reflow. Care must be taken when attaching this product, whether it is done manually or
in a production solder reflow environment. If the part is manually attached, precaution should be taken to insure that
the device is not subjected to temperatures above its rated peak temperature for an extended period of time. For
details on both atta chment tec hniqu es, precaut ions, and handling procedures recommended, please refer to:
“Land Grid Array Module Solder Reflow & Rework Information”, Document Number QAD-00046
“Handling, Packing, Shipping and Use of Moisture Sensitive LGA”, Document Number QAD-00047
DAT A SHE ET
SE2521A80: 2.4 GHz Wireless LAN Front-End
Preliminary
Skyworks Solutions, Inc. • Pho ne [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
202417A • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • September 25, 2012 11
Recommended PCB Footprint
Figure 8 shows the recommended PCB footprint for the SE2521A80.
PIN NAME DESCRIPTION
VIA IN SIGNAL LAND TABLE
RECOMMENDED
NOTES :
SIGNAL
LAND DETAIL
GROUND
PAD DETAIL
PASTE SCREEN PATTERN
MASK PATTERN
LAND PATTERN
LGA100P800X700-24-610X505
RECOMMENDED FOOTPRINT
01
Figure 8: SE2521A80 Recommended PCB Footprint
Branding Information
The device branding is sh own in Figure 9.
SiGe
2521A80
Lot Code
Pin 1 Identifier
Part Number
Lot Code
Pin 1
e4
Terminal Finish
Figure 9: SE2521A80 Branding and Pin 1 Location
DAT A SHE ET
SE2521A80: 2.4 GHz Wireless LAN Front-End
Preliminary
Skyworks Solutions, Inc. • Pho ne [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
202417A • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • September 25, 2012 12
Tape and Reel
Production quantities of this product are shipped in a standard tape-and-reel format. Specific tape and reel
dimensions and sizing is show n in Table 1 and Figure 10.
Parameter
Value
Devices Per Reel
2500
Reel Diameter
13 inches
Table 1: Tape and Reel Dimensions
Figure 10: SE2521A80 Tape and Reel Information
DAT A SHE ET
SE2521A80: 2.4 GHz Wireless LAN Front-End
Preliminary
Skyworks Solutions, Inc. • Pho ne [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
202417A • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • September 25, 2012 13
Copyright © 2012 Skyworks Solutions, Inc. All Rights Reserved.
Information in this document is provided in connection with Skyworks Solutions, Inc. (“Skyworks”) products or services. These materials, including the information contained herein,
are provided by Skyworks as a service to its customers and may be used for informational purposes only by the customer. Skyworks assumes no responsibility for errors or
omissions in these materials or the information contained herein. Skyworks may change its documentation, products, services, specifications or product descriptions at any time,
without notice. Skyworks makes no commitment to update the materials or information and shall have no responsibility whatsoever for conflicts, incompatibilities, or other
difficulties arising from any future changes.
No license, whether express, implied, by estoppel or otherwise, is granted to any intellectual property rights by this document. Skyworks assumes no liability for any materials,
products or information provided hereunder, including the sale, distribution, reproduction or use of Skyworks products, information or materials, except as may be provided in
Skyworks Terms and Conditions of Sale.
THE MATERIALS, PRODUCTS AND INFORMATION ARE PROVIDED “AS IS” WITHOUT WARRANTY OF ANY KIND, WHETHER EXPRESS, IMPLIED, STATUTORY, OR OTHERWISE,
INCLUDING FITNESS FOR A PARTICULAR PURPOSE OR USE, MERCHANTABILITY, PERFORMANCE, QUALITY OR NON-INFRINGEMENT OF ANY INTELLECTUAL PROPERTY RIGHT; ALL
SUCH WARRANTIES ARE HEREBY EXPRESSLY DISCLAIMED. SKYWORKS DOES NOT WARRANT THE ACCURACY OR COMPLETENESS OF THE INFORMATION, TEXT, GRAPHICS OR
OTHER ITEMS CONTAINED WITHIN THESE MATERIALS. SKYWORKS SHALL NOT BE LIABLE FOR ANY DAMAGES, INCLUDING BUT NOT LIMITED TO ANY SPECIAL, INDIRECT,
INCIDENTAL, STATUTORY, OR CONSEQUENTIAL DAMAGES, INCLUDING WITHOUT LIMITATION, LOST REVENUES OR LOST PROFITS THAT MAY RESULT FROM THE USE OF THE
MATERIALS OR INFORMATION, WHETHER OR NOT THE RECIPIENT OF MATERIALS HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
Skyworks products are not intended for use in medical, lifesaving or life-sustaining applications, or other equipment in which the failure of the Skyworks products could lead to
personal injury, death, physical or environmental damage. Skyworks customers using or selling Skyworks products for use in such applications do so at their own risk and agree to
fully indemnify Skyworks for any damages resulting from such improper use or sale.
Customers are responsible for their products and applications using Skyworks products, which may deviate from published specifications as a result of design defects, errors, or
operation of products outside of published parameters or design specifications. Customers should include design and operating safeguards to minimize these and other risks.
Skyworks assumes no liability for applications assistance, customer product design, or damage to any equipment resulting from the use of Skyworks products outside of stated
published specifications or parameters.
Skyworks, the Skyworks symbol, and “Breakthrough Simplicity” are trademarks or registered trademarks of Skyworks Solutions, Inc., in the United States and other countries.
Third-party brands and names are for identification purposes only, and are the property of their respective owners. Additional information, including relevant terms and conditions,
posted at www.skyworksinc.com, are incorporated by reference.
