DATA SHEET
SKY13411-374LF: 0.1-6.0 GHz DPDT Switch
Applications
•
Dual-band
wireless LANs (802.11 a/b/g/n)
•
Diversity antenna switching
Features
•
Broadband frequency range: 0.1
to
6.0 GHz
•
Positive control voltage range: 1.8 to 5.0 V
•
Low insertion loss: 0.6 dB typical @ 2.5 GHz
•
High isolation: 23.5 dB typical @ 2.5 GHz
•
P1dB: +31 dBm typical @ 3 V
•
Small, MLPD (6-pin, 1.5 x 1.5 mm) Pb-free package (MSL1,
260
°C
per JEDEC J-STD-020)
Figure 1. SKY13411-374LF Block Diagram
Description
The SKY13411-374LF is a pHEMT GaAs Double-Pole, Double-
Throw (DPDT) switch designed for dual-band wireless LAN
applications. The switch provides high linearity performance, low
insertion loss, and high isolation.
Switching
is controlled by two voltage inputs (V1 and V2).
Depending on the logic voltage level applied to the control pins,
the ANT1 and ANT2 pins connect to one of two switched RF
outputs (RX or TX) through a low insertion loss path while
maintaining a high isolation path to the alternate port.
The switch is manufactured in a compact, 1.5 x 1.5
mm,
6-pin
exposed pad plastic Micro Leadframe Package Dual (MLPD)
package.
A functional block diagram is shown in Figure 1. The pin
configuration and package are shown in Figure 2. Signal pin
assignments and functional pin descriptions are provided in
Table 1.
Figure 2. SKY13411-374LF Pinout – 6-Pin MLPD
(Top View)
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
201665B • Skyworks Proprietary
Information
• Products and Product Information are Subject to Change Without Notice • February 27, 2012
1
DATA SHEET • SKY13411-374LF DPDT SWITCH
Table 1. SKY13411-374LF Signal Descriptions
Pin #
1
2
3
Note:
Name
ANT2
V2
RX
Description
Antenna 2 RF port. Must be DC-blocked for
proper operation.
DC control voltage 2
Receive RF port. Must be DC-blocked for
proper operation.
Pin #
4
5
6
TX
V1
ANT1
Name
Description
Transmit RF port. Must be DC-blocked for
proper operation.
DC control voltage 1
Antenna 1 RF port. Must be DC-blocked for
proper operation.
Exposed backside ground pad must be properly grounded through a low impedance path.
Table 2. SKY13411-374LF Absolute Maximum Ratings
Parameter
Control voltage
RF input power
Storage temperature
Operating temperature
Note:
Symbol
V1, V2
P
IN
T
STG
T
OP
Minimum
Maximum
6
+32
Units
V
dBm
°C
°C
–40
–40
+125
+85
Exposure to maximum rating conditions for extended periods may reduce device reliability. There is no damage to device with only one parameter set at the limit and all other
parameters set at or below their nominal value. Exceeding any of the limits listed here may result in permanent damage to the device.
CAUTION:
Although this device is designed to be as robust as possible, Electrostatic Discharge (ESD) can damage this device. This device
must be protected at all times from ESD. Static charges may easily produce potentials of several kilovolts on the human body
or equipment, which can discharge without detection. Industry-standard ESD precautions should be used at all times.
Table 3. SKY13411-374LF Recommended Operating Conditions
Parameter
Frequency
Control voltage
f
V1, V2
Symbol
Minimum
0.1
1.8
3.0
Typical
Maximum
6.0
5.0
Units
GHz
V
Electrical and Mechanical Specifications
The absolute maximum ratings of the SKY13411-374LF are
provided in Table 2. The recommended operating conditions are
specified in Table 3 and electrical specifications are provided in
Table 4.
Typical performance characteristics of the SKY13411-374LF are
illustrated in Figures 3 through 8.
The state of the SKY13411-374LF is determined by the logic
provided in Table 5.
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
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February 27, 2012 • Skyworks Proprietary
Information
• Products and Product Information are Subject to Change Without Notice • 201665B
DATA SHEET • SKY13411-374LF DPDT SWITCH
Table 4. SKY13411-374LF Electrical Specifications (Note 1)
(V
CTL
= 0 V and +3.0 V, T
OP
= +25
°C,
P
IN
= 0 dBm, Characteristic Impedance [Z
O
] = 50
Ω,
Unless Otherwise Noted)
Parameter
RF Specifications
Insertion loss
IL
ANT1/ANT2 to RX/TX
0.1
to
1.0 GHz
1.0
to 2.5
GHz
2.5
to 4.0 GHz
4.0 to 6.0 GHz
Isolation
Iso
ANT1/ANT2 to RX/TX,
ANT1 to ANT2, TX to RX
0.1 to 1.0 GHz
1.0 to 2.5 GHz
2.5 to 4.0 GHz
4.0 to 6.0 GHz
Return loss (Note
2)
|S11|
ANT1/ANT2 to RX/TX,
0.1
to
4.0 GHz
4.0 to 6.0 GHz
0.1 to 4.0 GHz
4.0 to 6.0 GHz
0.1 to 4.0 GHz
4.0 to 6.0 GHz
P
IN
= +20 dBm/tone,
Δf
= 1 MHz,
0.1 to 6.0 GHz
P
IN
= +20 dBm,
0.1 to 6.0 GHz
P
IN
= +20 dBm,
0.1 to 6.0 GHz
50% V1/V2 to 90/10% RF
90/10% RF
or
10/90% RF
DC Specifications
Control voltage:
high
low
Control current
V1, V2
1.8
–0.2
I
CC
3.0
0
5
5.0
0.2
V
V
μA
23
22
15
12
26
26
19
14
15
15
+31
+30
+27
+26
+50
dB
dB
dB
dB
dB
dB
dBm
dBm
dBm
dBm
dBm
0.50
0.60
0.80
0.90
0.65
0.75
0.90
1.20
dB
dB
dB
dB
Symbol
Test Condition
Min
Typical
Max
Units
1 dB Input Compression Point
0.1 dB Input Compression Point
3
rd
Order Input Intercept Point
IP1dB
IP0.1dB
IIP3
2
nd
harmonic
3
rd
harmonic
Switching speed
2fo
3fo
–70
–70
70
35
dBc
dBc
ns
ns
Note 1:
Performance is guaranteed only under the conditions listed in this Table.
Note 2:
Lower frequency return loss is dependent on the DC blocking capacitor value.
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
201665B • Skyworks Proprietary
Information
• Products and Product Information are Subject to Change Without Notice • February 27, 2012
3
DATA SHEET • SKY13411-374LF DPDT SWITCH
Typical Performance Characteristics
(V
CTL
= 0 V and +3.0 V, T
OP
= +25
°C,
P
IN
= 0 dBm, Characteristic Impedance [Z
O
] = 50
Ω,
Unless Otherwise Noted)
Figure 3. Insertion Loss vs Frequency
Figure 4. Isolation vs Frequency,
ANT2-TX/ANT1-RX Insertion Loss Mode
Figure 5. Isolation vs Frequency,
ANT2-RX/ANT1-TX Insertion Loss Mode
Figure 6. Return Loss vs Frequency,
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
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February 27, 2012 • Skyworks Proprietary
Information
• Products and Product Information are Subject to Change Without Notice • 201665B
DATA SHEET • SKY13411-374LF DPDT SWITCH
Figure 7. Compression vs Input Power
@ 2.4 to 2.5 GHz
Figure 8. Compression vs Input Power
@ 5 to 6 GHz
Table 5. SKY13411-374LF Truth Table
V1 (Pin 5)
High
Low
Note:
V2 (Pin 2)
Low
High
ANT1 (Pin 6) to
TX (Pin 4)
Isolation state
Insertion loss state
ANT1 (Pin 6) to
RX (Pin 3)
Insertion loss state
Isolation state
ANT2 (Pin 1) to
TX (Pin 4)
Insertion loss state
Isolation state
ANT2 (Pin 1) to
RX (Pin 3)
Isolation state
Insertion loss state
High = +1.8 V to +5 V. Low =
–0.2
V to +0.2 V.
Evaluation Board Description
The SKY13411-374LF Evaluation Board is used to test the
performance of the SKY13411-374LF SPDT Switch. An Evaluation
Board schematic diagram is provided in Figure 9. An assembly
drawing for the Evaluation Board is shown in Figure 10.
Package and Handling Information
Instructions
on the shipping container label regarding exposure to
moisture after the container seal is broken must be followed.
Otherwise, problems related to moisture absorption may occur
when the part is subjected to high temperature during solder
assembly.
The SKY13411-374LF
is rated to Moisture Sensitivity Level 1
(MSL1) at 260
°C.
It can be used for lead or lead-free soldering.
For additional information, refer to the Skyworks Application Note,
Solder Reflow Information,
document number 200164.
Care must be taken when attaching this product, whether it is
done manually or in a production solder reflow environment.
Production quantities of this product are shipped in a standard
tape and reel format.
Package Dimensions
The PCB layout footprint for the SKY13411-374LF is provided in
Figure 11. Typical case markings are shown in Figure 12.
Package dimensions for the 6-pin MLPD are shown in Figure 13,
and tape and reel dimensions are provided in Figure 14.
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
201665B • Skyworks Proprietary
Information
• Products and Product Information are Subject to Change Without Notice • February 27, 2012
5
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