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SKY73013-306 Datasheet

  • SKY73013-306

  • Skyworks Solutions Inc. [Direct Quadrature Demodulator 4.9-...

  • SKYWORKS   SKYWORKS

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DATA SHEET
SKY73013-306: Direct Quadrature Demodulator
4.9鈥?.925 GHz Featuring 鈥淣o-Pull鈥?LO Architecture
Applications
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Functional Block Diagram
Baseband Output
I+
I-
WiMAX, WLAN receivers
UNII Band OFDM receivers
RFID, DSRC applications
Proprietary radio links
Features
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RF is non-integer multiple of LO frequency
Broadband RF: 4.9鈥?.925 GHz, LO: 3.268鈥?.952 GHz,
IF: DC鈥?00 MHz
Single 3.3 V supply
Very low LO drive level (-15 dBm)
High dynamic range, low noise figure
Excellent linearity and quadrature accuracy鈥攕uitable for
64-QAM OFDM
Low current consumption
Small 4 x 4 mm 16-lead QFN package
Available lead (Pb)-free and RoHS-compliant
RF
Input
LNA
x 3/2
Frequency
Multiplier
2/3 F
RF
Local
Oscillator
Gain Control
(on/off)
Q+
Q-
Baseband Output
Description
The Skyworks SKY73013-306 is an integrated receiver down-
converter subsystem for the 4.9鈥?.925 GHz band. Its exceptional
dynamic range and quadrature accuracy make this device an
ideal solution for direct conversion and low-IF OFDM and single-
carrier communications systems (including 64-QAM WiMax
and WLAN).
The SKY73013-306 employs an innovative 鈥渘o-pull鈥?local
oscillator (LO) architecture which offsets the required synthesizer
frequency from that of the receiver center frequency by the
non-integer factor of 3/2. This greatly improves the performance
of direct conversion receiver architecture by eliminating dynamic
DC offsets (caused by LO-RF leakage) and VCO pulling. This
receiver frequency plan is compatible with the 3/2 鈥渘o-pull鈥?/div>
modulator frequency plan.
The SKY73013-306 contains a low noise amplifier at the RF
input, the gain of which can be set to a high or low value via the
gain control input. This LNA drives a highly linear quadrature
mixer pair. The quadrature local oscillator signals to these mixer
stages are provided by the 3/2 frequency conversion stage.
The nominal supply voltage for SKY73013-306 is 3.3 V. This part
can operate over the temperature range of -40 擄C to 85 擄C.
An evaluation board is available upon request.
NEW
Skyworks offers lead (Pb)-free, RoHS (Restriction of
Hazardous Substances)-compliant packaging.
Skyworks Solutions, Inc. 鈥?Phone [781] 376-3000 鈥?Fax [781] 376-3100 鈥?sales@skyworksinc.com 鈥?www.skyworksinc.com
200508 Rev. B 鈥?Skyworks Proprietary Information 鈥?Products and Product Information are Subject to Change Without Notice. 鈥?August 18, 2006
1

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