DATA SHEET
SKY65230-11: WLAN 802.11n 2 x 2 MIMO Intera™ Front-End
Module with 3 Antenna Ports
Features
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Description
The SKY65230-11 Intera nFEM combines two complete dual-band
transmit/receive chains in one compact RF front end module
optimized for 2 x 2 MIMO (multiple in—multiple out) operation, in
compliance with the 802.11n draft standard. The SKY65230-11
includes two 5 GHz PAs and two 2 GHz PAs, each with integrated
input filtering for 3–4 GHz rejection, and two temperature-
compensated, directional power detectors with 20 dB dynamic
range. Also included are low loss, high rejection GaAs diplexers and
diversity switches which provide high linearity in all transmit paths
and low loss in all receive paths. Additionally, a third antenna port
is added to provide switch diversity capability on both chains. All
RF ports are matched to 50
Ω.
The SKY65230-11 Intera nFEM achieves outstanding gain
matching between both 2 GHz transmit paths and both 5 GHz
transmit paths, which is a critical requirement for MIMO operation.
This is accomplished though mirrored layout symmetry.
The SKY65230-11 is packaged in a lead (Pb)-free, RoHS-compliant
laminate package, which measures 140 mm
2
. This tiny footprint
enables more functionality in less printed circuit board space.
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2 x 2 MIMO architecture
Two full dual-band transmit/receive chains
3rd antenna provides switch diversity on both chains
Backward-compatible with 802.11a/b/g standards
P
OUT
@ 2.5% EVM: 16 dBm (-11a); 19 dBm (-11b);
19 dBm (-11g)
Gain matching: <1.5 dB @ 2 GHz, < 2 dB @ 5 GHz
Single 3.0–3.6 V power supply, internal voltage regulation
Temperature-compensated PA bias networks and directional
power detection
Separate digital controls for each PA
Package size: 10 x 14 x 0.9 mm
Lead (Pb)-free and RoHS-compliant MSL-3 @ 250 °C
per JEDEC J-STD-020
NEW
Skyworks offers lead (Pb)-free, RoHS (Restriction of
Hazardous Substances)-compliant packaging.
Functional Block Diagram
RxMain0 RxAux0
R0g
R0a
Diplexer
2 GHz
T0g
5 GHz
T0a
PD0ag
PU0g
PU0a
PU1g
PU1a
PD1ag
T1a
5 GHz
T1g
2 GHz
R1a
R1g
Diplexer
RxMain1 RxAux1
Dir
Det
A1
TxMain1
TxAux1
Dir
Det
CTRL0A2
PA
Controller
A2
Dir
Det
Diplexer
TxAux0
TxMain0
A0
CTRL0A1
Dir
Det
Diplexer
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
200547 Rev. F • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • May 7, 2007
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SKYWORKS [ SKYWORKS SOLUTIONS INC. ]
