DATA SHEET
SKY13446-374LF: 0.1 to 6.0 GHz GaAs SPDT Switch
Applications
Dual-band WLAN systems
802.11 a/b/g/n transmit/receive systems
ANT
Features
Positive low voltage control: 0 and 3.0 V
Low insertion loss: 0.40 dB @ 2.5 GHz and 0.80 dB @ 6.0 GHz
High isolation: 38 dB @ 2.4 GHz and 30 dB @ 6 GHz
Excellent linearity performance: P1dB = +32 dBm
Advanced pHEMT process
Ultra-thin, miniature MLPD (6-pin, 1.5 x 1.5 x 0.45 mm)
package (MSL1, 260
C
per JEDEC J-STD-020)
RX
201843-001
TX
Figure 1. SKY13446-374LF Block Diagram
Description
The SKY13446-374LF is a pHEMT GaAs I/C antenna switch.
Switching between the antenna and TX or RX ports is
accomplished with two control voltages. The low-loss, high
isolation, high linearity, small size and low cost make this switch
ideal for all dual-band WLAN systems that operate at 2.4 to
2.5 GHz and 4.9 to 5.9 GHz.
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.
Skyworks Green
TM
products are compliant with
all applicable legislation and are halogen-free.
For additional information, refer to
Skyworks
Definition of Green
TM
, document number
SQ04-0074.
N/C
1
6
ANT
V2
2
5
V1
RX
3
4
201843-002
TX
Figure 2. SKY13446-374LF Pinout
(Top View)
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
201843C • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • January 15, 2018
1
DATA SHEET • SKY13446-374LF: SPDT SWITCH
Table 1. SKY13446-374LF Signal Descriptions
1
Pin
1
2
3
N/C
V2
RX
Name
No connection
DC control voltage
RF port (must be DC blocked)
Description
Pin
4
5
6
TX
V1
ANT
Name
Description
RF port (must be DC blocked)
DC control voltage
RF common port (must be DC blocked)
1 Bottom ground paddle should be connected to ground for best operation.
Electrical and Mechanical Specifications
The absolute maximum ratings of the SKY13446-374LF are
provided in Table 2. Electrical specifications are provided in
Table 3.
The state of the SKY13446-374LF is determined by the logic
provided in Table 4. Typical performance characteristics are
shown in Figures 3 through 7.
Table 2. SKY13446-374LF Absolute Maximum Ratings
Parameter
Input power @ 0 and 3 V
Input power @ 0 and 5 V
Operating voltage
Storage temperature
Operating temperature
P
IN
P
IN
V
CTL
T
STG
T
OP
-65
-40
Symbol
Minimum
Maximum
+33
+35
6.0
+150
+85
Units
dBm
dBm
V
C
C
ESD HANDLING:
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 when handling or transporting. Static charges may easily produce
potentials of several kilovolts on the human body or equipment, which can discharge without detection.
Industry-standard ESD handling precautions should be used at all times.
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
2
January 15, 2018 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • 201843C
DATA SHEET • SKY13446-374LF: SPDT SWITCH
Table 3. SKY13446-374LF Electrical Specifications
1
(V
CTL
= 0 V and +3.0 V, T
OP
= +25
C,
P
IN
= 0 dBm, Characteristic Impedance [Z
O
] = 50
ΩUnless
Otherwise Noted)
Parameter
Insertion loss, ANT to TX and RX ports
Symbol
Test Condition
2.4-2.5 GHz
0.1-3.0 GHz
3.0-6.0 GHz
2.4-2.5 GHz
0.1-3.0 GHz
3.0-6.0 GHz
2.4-2.5 GHz
0.1-3.0 GHz
3.0-6.0 GHz
10/90% or 90/10% RF
50% V
CTL
to 90/10% RF
T
RISE
= 1 ns @ 500 MHz
V
CTL
= 0 and 3.0 V,
2.4-2.5 GHz
4.9-5.9 GHz
V
CTL
= 0 and 1.8 V,
2.4-2.5 GHz
4.9-5.9 GHz
802.11a, 54 Mbps,
P
IN
= <+23 dBm,
V
CTL
= 3 V
802.11g, 54 Mbps,
P
IN
= <+26 dBm,
V
CTL
= 3 V
1.80
V
CTL
_
H
and V
CTL
_
L
33
32
27
14
12
10
Min
Typ
0.4
0.5
0.8
38
38
30
21
18
15
50
150
50
+33
+32
+26
+23
2.5
Max
0.6
0.7
1.0
Units
dB
dB
dB
dB
dB
dB
dB
dB
dB
ns
ns
mV
dBm
dBm
dBm
dBm
%
Isolation, ANT to TX and RX ports
Return loss, ANT to TX and RX ports
(insertion loss state)
2
Switching characteristics:
Rise/fall time
On/off time
Video feedthrough
Input power for 1 dB compression
P1dB
Error vector magnitude
EVM
2.5
%
Control voltage:
High
Low
Leakage current
1
V
CTL
_
H
V
CTL
_
L
3.30
0
5
5.00
0.25
50
V
V
μA
Performance is guaranteed only under the conditions listed in this table.
2 Low frequency return loss is limited by the value of DC blocking capacitors (22 pF).
Table 4. SKY13446-374LF Truth Table
1
V1 (Pin 5)
1
0
V2 (Pin 2)
0
1
ANT to RX Path
Insertion loss
Isolation
Isolation
Insertion loss
ANT to TX Path
1 “1” = +1.8 V to +5.0 V. “0” = 0 V to +0.25 V. Any state other than described in this table places the switch into an undefined state. An undefined state will not damage the device.
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
201843C • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • January 15, 2018
3
DATA SHEET • SKY13446-374LF: SPDT SWITCH
Typical Performance Characteristics
(V
CTL
= 0 V and +3.0 V, T
OP
= +25
C,
P
IN
= 0 dBm, Characteristic Impedance [Zo] = 50
Ω,
Unless Otherwise Noted)
0
–0.2
0
–5
–0.6
–0.8
–1.0
–1.2
–1.4
201843-003
Input Return Loss (dB)
–0.4
Insertion Loss (dB)
–10
–15
–20
–25
–30
–35
ANT to RX
ANT to TX
201843-004
–1.6
–1.8
–2.0
0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
ANT to RX
ANT to TX
5.0
5.5
6.0
0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
5.0
5.5
6.0
Frequency (GHz)
Frequency (GHz)
Figure 3. Insertion Loss vs Frequency
Figure 4. Input Return Loss vs Frequency
0
–5
–10
–15
5.0
4.5
4.0
3.5
Isolation (dB)
–25
–30
–35
–40
201843-005
EVM (%)
–20
3.0
2.5
2.0
1.5
RX
TX
–50
–55
0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
5.0
ANT to RX
ANT to TX
0.5
0
+10
+15
+20
+25
5.5
6.0
+30
Frequency (GHz)
Input Power (dBm)
Figure 5. Isolation vs Frequency
Figure 6. EVM vs Input Power
(@ 2.45 GHz, 54 bps)
5.0
4.5
4.0
3.5
EVM (%)
3.0
2.5
2.0
1.5
201843-007
1.0
0.5
0
+10
+15
+20
+25
RX
TX
+30
Input Power (dBm)
Figure 7. EVM vs Input Power
(@ 5.5 GHz, 54 bps)
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
4
January 15, 2018 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • 201843C
201843-006
–45
1.0
DATA SHEET • SKY13446-374LF: SPDT SWITCH
Evaluation Board Description
The SKY13446-374LF Evaluation Board is used to test the
performance of the SKY13446-374LF SPDT Switch. An Evaluation
Board schematic diagram is provided in Figure 8. An assembly
drawing for the Evaluation Board is shown in Figure 9.
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 SKY13446-374LF is rated to Moisture Sensitivity Level 1
(MSL1) at 260
C.
It can be used for lead or lead-free soldering.
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 SKY13446-374LF is provided in
Figure 10. Typical part markings are shown in Figure 11. Package
dimensions are shown in Figure 12, and tape and reel dimensions
are provided in Figure 13.
1
×
N/C
ANT
6
C
BL
RF
Common
Input
DC
Control
Voltage (1.8-5.0 V)
DC
Control
Voltage (1.8-5.0 V)
2
C1
47 pF
C
BL
V2
V1
5
C2
47 pF
RF Output
3
RX
TX
201843-008
4
C
BL
RF Output
C
BL
= 22 pF for 2.4-6.0 GHz operation.
Exposed ground paddle should be grounded
for best performance.
Figure 8. SKY13446-374LF Evaluation Board Schematic
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
201843C • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • January 15, 2018
5
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