DATA SHEET
SKY65233-11: WLAN 802.11n Single-Band 2.4 GHz
2 x 2 MIMO Intera™ Front-End Module with 3 Antenna Ports
Features
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Description
The SKY65233-11 Intera nFEM combines two complete 2.4 GHz
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 SKY65233-11
includes 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 filters 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 SKY65233-11 Intera nFEM achieves outstanding gain
matching which is a critical requirement for MIMO operation. This
is accomplished though mirrored layout symmetry.
The SKY65233-11 is packaged in a lead (Pb)-free, RoHS-compliant
laminate package, which measures 140 mm
2
. It is designed as a
pin-to-pin compatible version of SKY65230-11 for 2.4 GHz only.
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Single-band 2.4–2.5 GHz 2 x 2 MIMO architecture
Two full 2.4–2.5 GHz transmit/receive chains
3rd antenna provides switch diversity on both chains
Backward-compatible with 802.11 b/g standards
P
OUT
@ 2.5% EVM: 19 dBm (-11b); 19 dBm (-11g)
Gain matching: <1.5 dB @ 2 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
TxAux0
TxMain0
A0
2 GHz
T0g
Dir
Det
PD0g
PU0g
PU1g
PD1g
T1g
2 GHz
Dir
Det
PA
Controller
CTRL0A2
A2
CTRL1A2
A1
TxMain1
TxAux1
R1g
RxMain1 RxAux1
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
200607 Rev. D • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • May 7, 2007
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SKYWORKS [ SKYWORKS SOLUTIONS INC. ]
