DATA SHEET
SKY13411-374LF: 0.1 to 6.0 GHz DPDT Switch
Applications
Dual-band wireless LANs (802.11 a/b/g/n)
Diversity antenna switching
ANT2
ANT1
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
RX
TX
S2072
Figure 1. SKY13411-374LF Block Diagram
Small, MLPD (6-pin, 1.5 x 1.5 mm) Pb-free package (MSL1,
260 C per JEDEC J-STD-020)
Skyworks Green™ products are compliant with
all applicable legislation and are halogen-free.
For additional information, refer to Skyworks
Definition of Green™, document number
SQ04-0074.
Description
The SKY13411-374LF is a pHEMT GaAs double-pole, doublethrow (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.
ANT2
1
6
ANT1
The switch is manufactured in a compact, 1.5 x 1.5 mm, 6-pin
exposed pad plastic Micro Leadframe Package Dual (MLPD)
package.
V2
2
5
V1
RX
3
4
TX
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.
S2073
Figure 2. SKY13411-374LF Pinout – 6-Pin MLPD
(Top View)
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DATA SHEET • SKY13411-374LF: DPDT SWITCH
Table 1. SKY13411-374LF Signal Descriptions
Pin
Note:
Name
Description
Pin
Name
Description
1
ANT2
Antenna 2 RF port. Must be DC-blocked for
proper operation.
4
TX
Transmit RF port. Must be DC-blocked for
proper operation.
2
V2
DC control voltage 2
5
V1
DC control voltage 1
3
RX
Receive RF port. Must be DC-blocked for
proper operation.
6
ANT1
Antenna 1 RF port. Must be DC-blocked for
proper operation.
Exposed backside ground pad must be properly grounded through a low impedance path.
Electrical and Mechanical Specifications
The state of the SKY13411-374LF is determined by the logic
provided in Table 5.
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.
Table 2. SKY13411-374LF Absolute Maximum Ratings
Parameter
Symbol
Minimum
Maximum
Units
Control voltage
V1, V2
RF input power
PIN
Storage temperature
TSTG
–40
+125
C
Operating temperature
TOP
–40
+85
C
Note:
6
V
+32
dBm
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
Symbol
Minimum
Frequency
f
0.1
Control voltage
V1, V2
1.8
Typical
3.0
Maximum
Units
6.0
GHz
5.0
V
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DATA SHEET • SKY13411-374LF: DPDT SWITCH
Table 4. SKY13411-374LF Electrical Specifications (Note 1)
(VCTL = 0 V and +3.0 V, TOP = +25 C, PIN = 0 dBm, Characteristic Impedance [ZO] = 50 Ω, Unless Otherwise Noted)
Parameter
Symbol
Test Condition
Min
Typical
Max
Units
0.50
0.60
0.80
0.90
0.65
0.75
0.90
1.20
dB
dB
dB
dB
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|
23
22
15
12
ANT1/ANT2 to RX/TX,
0.1 to 4.0 GHz
4.0 to 6.0 GHz
26
26
19
14
dB
dB
dB
dB
15
15
dB
dB
1 dB Input Compression Point
IP1dB
0.1 to 4.0 GHz
4.0 to 6.0 GHz
+31
+30
dBm
dBm
0.1 dB Input Compression Point
IP0.1dB
0.1 to 4.0 GHz
4.0 to 6.0 GHz
+27
+26
dBm
dBm
3rd Order Input Intercept Point
IIP3
PIN = +20 dBm/tone,
Δf = 1 MHz,
0.1 to 6.0 GHz
+50
dBm
2nd harmonic
2fo
PIN = +20 dBm,
0.1 to 6.0 GHz
–70
dBc
3rd harmonic
3fo
PIN = +20 dBm,
0.1 to 6.0 GHz
–70
dBc
50% V1/V2 to 90/10% RF
70
ns
90/10% RF or 10/90% RF
35
ns
Switching speed
DC Specifications
Control voltage:
high
low
V1, V2
Control current
ICC
1.8
–0.2
3.0
0
5.0
0.2
5
V
V
μA
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.
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DATA SHEET • SKY13411-374LF: DPDT SWITCH
Typical Performance Characteristics
(VCTL = 0 V and +3.0 V, TOP = +25 C, PIN = 0 dBm, Characteristic Impedance [ZO] = 50 Ω, Unless Otherwise Noted)
0
–5
–0.4
–10
–0.6
–15
Isolation (dB)
Insertion Loss (dB)
0
TX to ANT1
RX to ANT2
TX to ANT2
RX to ANT1
–0.2
–0.8
–1.0
–1.2
–20
–25
–30
–1.4
–35
–1.6
–40
–1.8
–45
–2.0
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
5.0
5.5
ANT1 to ANT2
ANT1 to TX
ANT2 to RX
TX to RX
–50
0.0
6.0
0.5
1.0
1.5
2.0
3.5
4.0
4.5
–5
ANT1 to ANT2
TX to RX
ANT2 to TX
ANT1 to RX
–10
5.5
6.0
Return Loss (dB)
–20
–25
–30
–35
–15
–20
–25
–30
–35
–40
–40
–45
–45
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
5.0
Frequency (GHz)
Figure 5. Isolation vs Frequency,
ANT2-RX/ANT1-TX Insertion Loss Mode
5.5
ANT1
ANT2
TX
RX
–10
–15
6.0
–50
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
Frequency (GHz)
Figure 6. Return Loss vs Frequency,
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4
5.0
0
0
–5
Isolation (dB)
3.0
Figure 4. Isolation vs Frequency,
ANT2-TX/ANT1-RX Insertion Loss Mode
Figure 3. Insertion Loss vs Frequency
–50
0.0
2.5
Frequency (GHz)
Frequency (GHz)
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5.0
5.5
6.0
DATA SHEET • SKY13411-374LF: DPDT SWITCH
+0.2
+0.2
2.5 V
2.7 V
3.0 V
0
–0.2
–0.2
–0.4
–0.4
Compression (dB)
Compression (dB)
0
–0.6
–0.8
–1.0
–1.2
–1.4
–0.6
–0.8
–1.0
–1.2
–1.4
–1.6
–1.6
–1.8
–1.8
–2.0
+15
+17
+19
+21
+23
+25
+27
+29
+31
+33
+35
2.5 V
2.7 V
3.0 V
–2.0
+15
+17
Input Power (dBm)
+19
+21
+23
+25
+27
+29
+31
+33
+35
Input Power (dBm)
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
Note:
ANT1 (Pin 6) to
TX (Pin 4)
ANT1 (Pin 6) to
RX (Pin 3)
ANT2 (Pin 1) to
TX (Pin 4)
ANT2 (Pin 1) to
RX (Pin 3)
V1 (Pin 5)
V2 (Pin 2)
High
Low
Isolation state
Insertion loss state
Insertion loss state
Isolation state
Low
High
Insertion loss state
Isolation state
Isolation state
Insertion loss state
High = +1.8 V to +5 V. Low = –0.2 V to +0.2 V.
Evaluation Board Description
Package and Handling Information
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.
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.
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.
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.
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DATA SHEET • SKY13411-374LF: DPDT SWITCH
CBL
Antenna 2 RF Port
DC Control Voltage
ANT2
2
CBYP
CBL
3
Receive RF Port
CBL
1
ANT1
6
V2
V1
5
RX
TX
4
Antenna 1 RF Port
CBYP
DC Control Voltage
CBL
Transmit RF Port
S2074
Figure 9. SKY13411-374LF Evaluation Board Schematic
Table 6. SKY13411-374LF Evaluation Board Bill of Materials
Component
Value
Size
Manufacturer
Characteristic
CBL
47 pF
0402
Murata GRM Series
DC blocking capacitor
CBYP
10 pF
0402
Murata GRM Series
Decoupling capacitor
V1
ANT1
0Ω
CBLK
CBYP
CBLK
TX
ANT2
CBLK
CBYP
CBLK
0Ω
RX
V2
S2075
Figure 10. SKY13411-374LF Evaluation Board Assembly Diagram
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DATA SHEET • SKY13411-374LF: DPDT SWITCH
6X 0.55
5 X 45o
6X 0.35
6X 0.25
0.60
0.50 Pitch
1.20
7X Exposed Solder
Area
0.05
0.20
0.35
0.70
S1535
Figure 11. SKY13411-374LF PCB Layout Footprint
(Top View)
Pin 1
Indicator
Skyworks Part #
Figure 12. Typical Part Markings
(Top View)
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DATA SHEET • SKY13411-374LF: DPDT SWITCH
Seating
Plane
C
Pin 1
Indicator
1.5
A
0.70 ± 0.05
0.02 +0.03
–0.02
0.127 Ref
B
Pin 1 Indicator
0.15 X 45°
2X 0.05
1.20 ± 0.05
1.5
0.05 C
2X
6X
2X
0.05 C
3
0.05 C
0.45 ± 0.05
Top View
Exposed Pad
Detail A
2X 0.20 Ref
Detail B
0.05 C
Bottom View
Side View
Notes:
1.
2.
3.
4.
5.
6X 0.2 Min
0.175 ± 0.075
Dimensions and tolerances according to ASME Y14.5M-1994.
Dimensions are in millimeters.
Coplanarity applies to the exposed heat sink slug as well as the terminals.
Plating requirement per source control drawing (SCD) 2504.
Dimension applies to metallized terminal, not measured in the radius area.
0.5
0.25 ± 0.05
5
0.10 C A B
0.05 M C
2X R0.05
Detail A
4X Scale
3X This Rotation
3X Rotated 180°
Figure 13. SKY13411-374LF 6-Pin QFN Package Dimensions
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Detail B
1X Scale
Y1523
DATA SHEET • SKY13411-374LF: DPDT SWITCH
Pin 1
4.00 ± 0.10
ϕ1.50± 0.10
2.00 ± 0.05
0.20 ± 0.02 (T)
1.75 ± 0.10
A
3.50 ± 0.05
1.78 ± 0.05 (Bo)
B
A
8.00 +0.30/–0.10
5o Max
B
0.69 ± 0.05 (Ko)
ϕ0.50± 0.05
B
5o Max
1.78 ± 0.05 (Ao)
A
Notes:
1. Carrier tape: black conductive polycarbonate or polystyrene.
2. Cover tape material: transparent conductive PSA.
3. Cover tape size: 5.4 mm width.
4. All measurements are in millimeters.
S1382a
Figure 14. SKY13411-374LF Tape and Reel Dimensions
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DATA SHEET • SKY13411-374LF: DPDT SWITCH
Ordering Information
Model Name
SKY13411-374LF: 0.1 to 6.0 GHz DPDT Switch
Manufacturing Part Number
SKY13411-374LF
Evaluation Board Part Number
SKY13411-374LF-EVB
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