DATA SHEET
SKY13414-485LF: 0.1 to 3.8 GHz SP4T Antenna Switch
Applications
Any 2G/3G/4G antenna diversity or LTE (TDD/FDD)
transmit/receive system for which GSM transmit is not required
RF1
Features
RF2
Broadband frequency range: 0.1 to 3.8 GHz
Low insertion loss: 0.45 dB typical @ 2.7 GHz
RF3
High isolation: >31 dB @ 2.7 GHz
RF4
ANT
Internal 50 Ω port to control diversity antenna impedance when
device is not in use
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.
V1
V2
Decoder
V3
Bias
VDD
Small QFN (14-pin, 2.0 x 2.0 mm) package
(MSL1, 260 C per JEDEC J-STD-020)
201689-001
50 Ω
Integrated logic
Figure 1. SKY13414-485LF Block Diagram
Description
The SKY13414-485LF is a single pole, four-throw (SP4T) antenna
switch with an internal 50 Ω termination. The high-linearity
performance and low insertion loss achieved by the
SKY13414-485LF make it an ideal choice for main/diversity
switching commonly used in LTE-based handsets, data cards,
and tablets that use antenna diversity solutions.
The SKY13414-485LF is part of a scalable family of products that
covers SP4T through SP8T switches that allow up to eight bands
of WCDMA/LTE:
SKY13414-485LF SP4T Antenna Switch (this Data Sheet)
SKY13415-485LF SP5T Antenna Switch (Data Sheet #201704)
SKY13416-485LF SP6T Antenna Switch (Data Sheet #201679)
SKY13417-485LF SP7T Antenna Switch (Data Sheet #201661)
SKY13418-485LF SP8T Antenna Switch (Data Sheet #201712)
Switching is controlled by three CMOS/TTL-compatible control
voltage inputs (V1, V2, and V3). Depending on the logic voltage
level applied to the control pins, the ANT pin is connected to one
of four switched RF outputs (RF1 to RF4) using a low insertion
loss path, while the paths between the ANT pin and the other RF
pins are in a high isolation state. The antenna path can also be
closed on a 50 Ω load when it needs to be terminated. The 50 Ω
load is internally grounded. No external blocking capacitors are
required on the RF paths unless VDC is externally applied.
The SKY13414-485LF is manufactured in a compact, 14-pin
2.0 x 2.0 mm, Quad Flat No-Lead (QFN) 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.
The symmetric port designs provide flexibility in signal routing for
both receive diversity and higher power TD-SCDMA/TDD-LTE,
WCDMA/FDD, and LTE transmit/receive applications.
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
201689J • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • November 23, 2016
1
N/C
ANT
N/C
DATA SHEET • SKY13414-485LF: SP4T ANTENNA SWITCH
14
13
12
RF3
2
10
RF4
RF1
3
9
RF2
VDD
4
8
N/C
5
6
7
V1
N/C
V2
11
V3
N/C
1
201689-002
Figure 2. SKY13414-485LF Pinout
(Top View)
Table 1. SKY13414-485LF Signal Descriptions1
Pin
Name
Description
Pin
8
Name
N/C
Description
1
N/C
Not connected
Not connected
2
RF3
RF I/O path 3
9
RF2
RF I/O path 2
3
RF1
RF I/O path 1
10
RF4
RF I/O path 4
4
VDD
DC power supply
11
N/C
Not connected
5
V3
DC control voltage 3
12
N/C
Not connected
6
V2
DC control voltage 2
13
ANT
Antenna port
7
V1
DC control voltage 1
14
N/C
Not connected
1 Bottom ground paddles must be connected to ground.
Functional Description
Electrical and Mechanical Specifications
The SKY13414-485LF includes an internal negative voltage
generator and decoder that eliminate the need for external DC
blocking capacitors on the RF ports. No external components are
required for proper operation. DC decoupling capacitors may be
added on the VDD and control lines if necessary.
The absolute maximum ratings of the SKY13414-485LF are
provided in Table 2. Electrical specifications are provided in
Table 3.
Switching is controlled by three control voltage inputs, V1, V2, and
V3. Depending on the logic voltage level applied to the control
pins, the antenna pin is connected to one of four switched RF
outputs or a 50 Ω termination.
The state of the SKY13414-485LF is determined by the logic
shown in Table 4.
The isolation matrix shown in Table 5 provides the port-to-port
and antenna-to-port isolation for all available RF states at four
different frequencies: 1.0 GHz, 2.0 GHz, 2.7 GHz, and 3.8 GHz.
Shutdown mode is enabled by connecting all three control pins
(V1, V2, and V3) to logic high. This mode reduces the overall
current consumption of the device to 5 μA typical.
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DATA SHEET • SKY13414-485LF: SP4T ANTENNA SWITCH
Table 2. SKY13414-485LF Absolute Maximum Ratings1
Parameter
Minimum
Maximum
Units
VDD
2.5
5.0
V
Control voltage (V1, V2, and V3)
VCTL
–0.5
+3.0
V
RF power applied to “on” arm (RF1 to RF4) or ANT port:
PIN
+37.5
+35
dBm
dBm
Supply voltage
Symbol
0.1 to 2.7 GHz (RF1 to RF4 arm)
3.4 to 3.8 GHz (RF2 to RF4 arm)
RF power applied to “off” arm (RF1 to RF4)
PIN
+33
dBm
RF power applied to antenna in the 50 Ω switched RF output state
PIN
+27
dBm
Operating temperature
TOP
–40
+85
C
Storage temperature
TSTG
–55
+150
C
Electrostatic discharge:
ESD
500
V
Human Body Model (HBM)
1 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.
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
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DATA SHEET • SKY13414-485LF: SP4T ANTENNA SWITCH
Table 3. SKY13414-485LF General Electrical Specifications1
(VDD = 2.6 V, V1 = V2 = V3 = 0/1.8 V, PIN = 0 dBm, TOP = +25 C, Characteristic Impedance [ZO] = 50 Ω, Unless Otherwise Noted)
Parameter
Symbol
Test Condition
(Note 2)
Min
Typical
Max
Units
2.5
3.0
4.8
V
40
50
μA
1.80
2.70
0.4
V
V
0.5
1.0
μA
DC Specifications
Supply voltage
VDD
Supply current
IDD
Control voltage:
High
Low
VCTL_H
VCTL_L
Control current
ICTL
Shutdown mode supply current
1.35
VCTL = 1.8 V
IOFF
V1/2/3 = 1.8 V, VDD = 3 V
5
10
μA
tON
50% of control voltage to
90% of final RF power,
switching between
RF1/2/3/4/5/6
1.75
2.20
μs
IL
0.1 to 1.0 GHz
1.0 to 2.0 GHz
2.0 to 2.7 GHz
3.4 to 3.8 GHz
0.40
0.40
0.45
0.6
0.50
0.50
0.60
0.8
dB
dB
dB
dB
Iso
0.1 to 1.0 GHz
1.0 to 2.0 GHz
2.0 to 2.7 GHz
3.4 to 3.8 GHz
38
32
27
20
42
35
31
26
dB
dB
dB
dB
RL
0.1 to 1.0 GHz
1.0 to 2.0 GHz
2.0 to 2.7 GHz
3.4 to 3.8 GHz
21
23
15
12
24
25
18
15
dB
dB
dB
dB
2fo
PIN = +26 dBm,
0.1 to 3.0 GHz
+99
dBc
3fo
PIN = +26 dBm,
0.1 to 3.0 GHz
+105
dBc
2fo
PIN = +26 dBm,
3.4 to 3.8 GHz, VSWR = 1:1
–55
dBm
3fo
PIN = +26 dBm,
3.4 to 3.8 GHz, VSWR = 1:1
–65
dBm
2fo
PIN = +26 dBm,
3.4 to 3.8 GHz, VSWR = 5:1
–50
dBm
3fo
PIN = +26 dBm,
3.4 to 3.8 GHz, VSWR = 5:1
–60
dBm
+37.5
+37
dBm
dBm
+70
dBm
Turn-on switching time
RF Specifications
Insertion loss (ANT pin to RF1/2/3/4 pins)
Isolation (ANT pin to RF1/2/3/4 pins)
Input return loss (ANT pin to RF1/2/3/4 pins)
Second harmonics (ANT pin to RF1/2/3/4 pins)
Third harmonics (ANT pin to RF1/2/3/4 pins)
Harmonics (ANT to RF2, 3, 4)
Harmonics (ANT to RF2, 3, 4)
Harmonics (ANT to RF2, 3, 4)
Harmonics (ANT to RF2, 3, 4)
0.1 dB compression point (ANT pin to RF2/3/4
pins)
Third order input intercept point
50 Ω power handling
P0.1dB
0.8 GHz to 3.0 GHz
3.4 to 3.8 GHz
IIP3
@ 2.0 GHz,
PIN = +26 dBm,
Δf = 1 MHz
@ 0.1 to 3.8 GHz
+27
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dBm
DATA SHEET • SKY13414-485LF: SP4T ANTENNA SWITCH
Table 4. SKY13414-485LF Control Logic1
Control Pins
V1
(Pin 7)
V2
(Pin 6)
Switched RF Outputs
V3
(Pin 5)
RF1
(Pin 3)
RF2
(Pin 9)
RF3
(Pin 2)
RF4
(Pin 10)
50 Ω
0
0
0
Insertion Loss
Isolation
Isolation
Isolation
Isolation
0
0
1
Isolation
Insertion Loss
Isolation
Isolation
Isolation
0
1
0
Isolation
Isolation
Insertion Loss
Isolation
Isolation
0
1
1
Isolation
Isolation
Isolation
Insertion Loss
Isolation
1
0
0
Isolation
Isolation
Isolation
Isolation
Isolation
1
0
1
Isolation
Isolation
Isolation
Isolation
50 Ω
1
1
1
Shutdown mode
1 “High” = 1.8 V; “Low” = 0 V. Any state other than that described in this table places the switch into an undefined state. An undefined state will not damage the device.
Table 5. Isolation Matrix (1 of 2)
Frequency
(GHz)
“On” Port
Isolation
(dB)
RF1
RF2
RF3
RF4
Antenna-to-Port
RF1
1.0
–
–47
–40
–42
RF1
2.0
–
–39
–31
–35
RF1
2.7
–
–36
–27
–32
RF1
3.8
–
–31
–22
–27
RF2
1.0
–46
–
–40
–40
RF2
2.0
–38
–
–34
–32
RF2
2.7
–35
–
–31
–28
RF2
3.8
–30
–
–26
–23
RF3
1.0
–38
–46
–
–42
RF3
2.0
–30
–39
–
–35
RF3
2.7
–27
–36
–
–32
RF3
3.8
–23
–31
–
–27
RF4
1.0
–45
–38
–41
–
RF4
2.0
–38
–31
–34
–
RF4
2.7
–34
–28
–31
–
RF4
3.8
–30
–24
–26
–
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
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5
DATA SHEET • SKY13414-485LF: SP4T ANTENNA SWITCH
Table 5. Isolation Matrix (2 of 2)
Frequency
(GHz)
“On” Port
Isolation
(dB)
RF1
RF2
RF3
RF4
Port-to-Port
RF1
1.0
–
–54
–31
–52
RF1
2.0
–
–43
–25
–43
RF1
2.7
–
–39
–22
–39
RF1
3.8
–
–32
–17
–34
RF2
1.0
–55
–
–48
–31
RF2
2.0
–43
–
–41
–24
RF2
2.7
–38
–
–37
–21
RF2
3.8
–32
–
–33
–17
RF3
1.0
–30
–56
–
–52
RF3
2.0
–24
–45
–
–43
RF3
2.7
–21
–40
–
–39
RF3
3.8
–17
–34
–
–34
RF4
1.0
–56
–30
–48
–
RF4
2.0
–44
–24
–41
–
RF4
2.7
–39
–21
–37
–
RF4
3.8
–32
–17
–32
–
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DATA SHEET • SKY13414-485LF: SP4T ANTENNA SWITCH
Evaluation Board Description
Package and Handling Information
The SKY13414-485LF Evaluation Board is used to test the
performance of the SKY13414-485LF SP4T switch. An Evaluation
Board schematic diagram is provided in Figure 3. An assembly
drawing for the Evaluation Board is shown in Figure 4.
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 SKY13414-485LF 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.
The PCB layout footprint for the SKY13414-485LF is provided in
Figure 5. Typical part markings are shown in Figure 6. Package
dimensions are shown in Figure 7, and tape and reel dimensions
are provided in Figure 8.
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.
×
RF Output
Port 3
RF Output
Port 1
N/C
1
12
ANT
×
13
N/C
14
Antenna
×
N/C
N/C
2
RF3
RF4
RF1
RF2
VDD
N/C
3
5
×
V1
V2
6
RF Output
Port 4
RF Output
Port 2
9
8
V3
DC Control
Voltage 3
DC Control
Voltage 2
×
10
4
DC Power
11
7
DC Control
Voltage 1
201689-003
Figure 3. SKY13414-485LF Evaluation Board Schematic
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DATA SHEET • SKY13414-485LF: SP4T ANTENNA SWITCH
RF3
RF1
N/C
N/C
GND
VDD
V3
V2
V1
N/C
ANT
N/C
RF2
RF4
N/C
201689-004
Figure 4. SKY13414-485LF Evaluation Board Assembly Diagram
14X 0.755
Pin 14
14X 0.395
R0.125
Pin 1 Indicator
Pin 1
14X 0.200
6X 0.450 Pitch
2X 0.500
Exposed Soldering
Area
Package Outline
4X 0.400 Pitch
2X 0.500
201689-005
All measurements in millimeters
Figure 5. SKY13414-485LF PCB Layout Footprint
(Top View)
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DATA SHEET • SKY13414-485LF: SP4T ANTENNA SWITCH
Pin 1
Indicator
Skyworks
Part Number
201689-006
Figure 6. Typical Part Markings
(Top View)
2.00
Seating
Plane
–C–
–A–
R0.125
Pin 1 Indicator
See Detail A
0.02 +0.03/–0.02
–B–
Pin 1
Indicator
(0.500) 8X 0.845
12
14
1
11
6X 0.845
4X 0.225
2.00
4
8
0.05 C
2X
0.120 Ref.
0.55 ± 0.05
2X
0.05 C
0.05 C
1 ± 0.1
(0.500)
4X 0.675
7
Exposed Pad
5
14X 0.065
14X 3
0.05 C
4X 0.400
14X 0.255
1 ± 0.1
Top View
Side View
Bottom View
0.2 ± 0.05
0.18 ± 0.05
Notes:
4
1. All measurements are in millimeters.
2. Dimensions and tolerances according to ASME Y14.5M-1994.
3. Coplanarity applies to the terminals and all other bottom surface metallization.
4. Dimension applies to metallized terminal. If the terminal has a radius on its end,
the width dimension should not be measured in that radius area.
0.10 M C A B
Detail A
Scale: 100X
3X This Rotation
3X Rotated 180°
4X Rotated 90° CW
4X Rotated 90° CCW
201689-007
Figure 7. SKY13414-485LF Package Dimensions
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
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DATA SHEET • SKY13414-485LF: SP4T ANTENNA SWITCH
2.00 ± 0.05
Ø1.50 + 0.10/–0.00
4.00 ± 0.10
1.75 ± 0.10
Pin 1
0.23 ± 0.05
A
2.25 ± 0.05
7º
3.50 ± 0.05
8.00 ± 0.20
0.70 ± 0.05 (Ko)
Section A
B
4.00 ± 0.10
A
B
7º
2.25 ± 0.05
Section B
Notes:
1.
2.
3.
4.
5.
Carrier tape must meet all requirements of Skyworks GP01-D232 procurement spec for tape and reel shipping.
Carrier tape shall be black conductive polycarbonate bakeable material at 125 ˚C temperature.
Cover tape shall be transparent conductive with 5.40 mm width.
ESD-surface resistivity must meet all ESD requirements of Skyworks specified on GP01-D232.
All measurements are in millimeters.
201689-008
Figure 8. SKY13414-485LF Tape and Reel Dimensions
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DATA SHEET • SKY13414-485LF: SP4T ANTENNA SWITCH
Ordering Information
Model Name
SKY13414-485LF: 0.1 to 3.8 GHz SP4T Antenna Switch
Manufacturing Part Number
SKY13414-485LF
Evaluation Board Part Number
SKY13414-485LF-EVB
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