201649D • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • January 15, 2018
1
DATA SHEET • SKY13431-374LF: SPDT SWITCH
Table 1. SKY13431-374LF Signal Descriptions
Pin
1
2
3
V1
RFC
V2
Name
Description
DC control voltage. A logic high voltage
enables an insertion loss path between the
RFC and RF1 pins.
RF common input. Must be DC blocked.
DC control voltage. A logic high voltage
enables an insertion loss path between the
RFC and RF2 pins.
Pin
4
5
6
RF2
GND
RF1
Name
Description
RF output: 50
Ω
terminated when in isolation
state. Must be DC blocked.
Ground
RF output: 50
Ω
terminated when in isolation
state. Must be DC blocked.
Functional Description
Switching is controlled by two control voltage inputs, V1 and V2
(pins 1 and 3, respectively). Depending on the logic voltage level
applied to the control pins, the RFC pin is connected to one of the
two switched RF outputs, RF1 or RF2, using a low insertion loss
path, while the path between the RFC pin and the other RF pin is
in a high isolation state.
DC blocking capacitors are required on all RF ports of the switch.
The value of the capacitors determines the low frequency
operation. The isolated RF output is internally terminated to 50
Ω.
The return loss of the isolated port is limited in frequency by on-
chip capacitors.
Electrical and Mechanical Specifications
The absolute maximum ratings of the SKY13431-374LF are
provided in Table 2. Electrical specifications are provided in
Table 3.
Typical performance characteristics of the SKY13431-374LF are
illustrated in Figures 3 through 6.
The state of the SKY13431-374LF is determined by the logic
provided in Table 4.
Table 2. SKY13431-374LF Absolute Maximum Ratings
1
Parameter
Control voltage
Input power
Storage temperature
Operating temperature
V
CTL
P
IN
T
STG
T
OP
–40
–40
Symbol
Minimum
Maximum
6
+37
+125
+85
Units
V
dBm
C
C
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.
January 15, 2018 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • 201649D
201649-006
201649-004
–30
DATA SHEET • SKY13431-374LF: SPDT SWITCH
Table 4. SKY13431-374LF Truth Table
1
V1 (Pin 1)
1
0
V2 (Pin 3)
0
1
RFC to RF1
RFC to RF2
Insertion Loss State
1 “1” = +2.5 V to +5.0 V. “0” = 0 V to +0.2 V. Any state other than described in this table places the switch into an undefined state. An undefined state will not damage the device.
Evaluation Board Description
The SKY13431-374LF Evaluation Board is used to test the
performance of the SKY13431-374LF SPDT Switch. An Evaluation
Board schematic diagram is provided in Figure 7. An assembly
drawing for the Evaluation Board is shown in Figure 8.
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 SKY13431-374LF 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 SKY13431-374LF is provided in
Figure 9. Typical case markings are shown in Figure 10. Package
dimensions are shown in Figure 11, and tape and reel dimensions
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