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PDF SKY13278-313LF Data sheet ( Hoja de datos )
| Número de pieza | SKY13278-313LF | |
| Descripción | GaAs SPDT Switch 100 MHz-2.5 GHz | |
| Fabricantes | Skyworks Solutions | |
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DATA SHEET
SKY13278-313LF: GaAs SPDT Switch 100 MHz–2.5 GHz
Features
G Broadband: 100 MHz–2.5 GHz
G Very low insertion loss: 0.4 dB typ. @ 900 MHz
G High isolation: 26 dB typ. @ 900 MHz
G Low current consumption: <100 µA @ 3 V
G Miniature QFN-6 2 x 3 mm package
G Lead (Pb)-free and RoHS-compliant MSL-1 @ 260 °C per
JEDEC J-STD-020
Description
The SKY13278-313LF is a pHEMT GaAs FET IC high linearity SPDT
switch. This wideband switch has been designed for use from
100 MHz to 2.5 GHz, where extremely high linearity, low control
voltage, high isolation, low insertion loss and ultra-miniature
package size are required. It can be controlled with positive,
negative or a combination of both voltages. The RF signal paths
within the SKY13278-313LF are fully bilateral.
Some standard implementations include T/R switching and diver-
sity switching over 3 W. The SKY13278-313LF switch can be used
in many analog and digital wireless communication systems
including cellular, GSM and UMTS applications.
Switching is controlled via two control voltage inputs. Depending
upon the voltage level applied to the control voltage pins, the
Function Block Diagram
J2
J3
V1
J1
V2
common RF port (J1) is connected to one of two RF ports (J2 or J3)
via a low insertion loss path, while the path between J1 and the
other RF port is in its isolation state. When the control voltages are
toggled, the states between J1 and J2, as wells as J1 and J3, are
also toggled.
The SKY13278-313LF is available in a lead(Pb)-free, RoHS-com-
pliant, QFN-6 2 x 3 mm plastic package.
An evaluation board is available upon request.
NEW Skyworks offers lead (Pb)-free, RoHS (Restriction of
Hazardous Substances)-compliant packaging.
Electrical Specifications
VCTL = 0/3 V, T = 25 °C, PINPUT = 0 dBm, Z0 = 50 Ω unless otherwise noted
Insertion loss
Parameter
Isolation
Return loss (insertion loss state)
Lower frequency return loss is dependent on DC blocks
Frequency
0.1–0.5 GHz
0.5–1.0 GHz
1.0–2.0 GHz
2.0–2.5 GHz
0.1–0.5 GHz
0.5–1.0 GHz
1.0–2.0 GHz
2.0–2.5 GHz
0.1–0.5 GHz
1.0–2.0 GHz
Min. Typ. Max. Unit
0.40 0.5
0.40 0.5
0.45 0.6
0.55 0.7
dB
dB
dB
dB
29 32
23 26
17 20
15 18
dB
dB
dB
dB
20 dB
20 dB
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com
200504 Rev. D • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • March 30, 2007
1
1 page  
Evaluation Board
The evaluation board for the SKY13278-313 allows the switch to
be fully exercised. The RF common port is marked “J1”, and the
two switched RF ports are marked “J2” and “J3”. All of the RF
ports have SMA connectors mounted. The control voltage inputs
are marked “V1” and “V2”.
The printed circuit board material is FR4. The RF dielectric layer
is 0.012 inches thick, ½ oz. copper. The RF transmission lines are
each 50 Ω (nominal) microstrip.
There are three DC blocking capacitors on the board, C1, C2 and
C3, each of which is in series with one of the RF ports. These
capacitors are 47 pF. For improved insertion loss at signal fre-
quencies below approximately 500 MHz these capacitors should
be replaced with larger capacitance capacitors, such as 1000 pF.
Item
C1, C2, C3
J1, J2, J3
U1
Printed Circuit Board
Description
DC Blocking Capacitor, 47 pF
SMA Connector, Edge Mount
SKY13278-313
Skyworks SK39990
Comments
0402
DATA SHEET • SKY13278-313LF
www.DataSheet4U.com
J2
C1
C3
J3
J1
V1
C2
V2
C1
J2 V1
C2
U1 J1
C3
J3
V2
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com
200504 Rev. D • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • March 30, 2007
5
5 Page | ||
| Páginas | Total 6 Páginas | |
| PDF Descargar | [ Datasheet SKY13278-313LF.PDF ] | |
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