Key Features
 Wideband .1-20GHz
 Low Insertion Loss

SW204KU
General Purpose Solid-State RF Switch Family

 Up to +26dBm
 Convenient USB
Power Supply
 50 Ohm Matched Programmable via
USB port
 Solid State
Reliability andSwitching Speed

 Extremely
Affordable andCompact

SP4T Absorptive RF Switch

Remote Operation

Designed for general
purpose low power, high-speed
switching, the SP4T SW204KU isuseful in many RF projects and test
settings.

Industry standard SCPI
commands allow the SW204KU tobe controlled by any host systemwith a USB interface.
The USB port is configuredas a virtual COM port allowing user
software to access change settings
on the switch and monitor status
easily and without additionaldrivers.

DS Instruments

The active port can be set
both manually with front control
button or via USB serialcommands. Micro-USB
conveniently powers the device sono additional lab supply or wiring
are needed. All ports are DCblocking for user convenience.

Switch Matrix Applications






DS
www.dsinstruments.com
SW204KU Rev 1 Version 1.3

Automated testing environments
Satellite communications
General RF lab use
Production verification
Aerospace / defense researchAntenna researchSW204KU
Usage Notes
Manual Next Port Button

4x RF Switched Ports (SMA)

Notes


Do not apply a signal over the maximum input power
USB drivers are pre-installed in all modern operating
systems
Serial Settings: 115200bps, 8 bits, 1 Stop, no parity

RF Common Port (SMA)

Micro USB
power source

www.dsinstruments.com
SW204KU Rev 1 Version 1.3

SW204KU – SP4T Switch
TECHNICAL SPECIFICATIONS*Measurements taken at 25C unless otherwise notedParameter

MinMaxOperating Frequency

0.5

20Typ.

Units
GHzInsertion Loss
1GHz
6GHz
12GHz
18GHz

2357.5dB
dBdB
dBIsolation
6GHz
12GHz
18GHz

403532dB
dBdB

Input Power (through RFC)

+26dBmInput Power (Into any terminated port)+22dBmSwitching Time (Buzzer Off)

50uS

Linearity (IP3)+40dBm1dB Compression Point+22dBm25

C

Return Loss (Active Port)

10dB

Return Loss (Terminated Port)

12dB

Temperature Range-20

DC Voltage Allowed on RF ports

50+20V

SMA Port Impedance

50OhmsDC Current Requirement

100mA

5.0V

DC Voltage Range (USB)4.75

Notes:

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SW204KU Rev 1 Version 1.35.25

SW204KU
Typical Performance Plots

Typical insertion loss from RFC to any RF port.

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SW204KU Rev 1 Version 1.3

SW204KU
Typical Performance Plots

Typical return loss on
any RF port

Typical leakage between
RFC and non-active
switch pathwww.dsinstruments.com
SW204KU Rev 1 Version 1.3

SW204KU
Typical User connections for Remote Features

FILE SETUP TEST ABOUT

USB
Attenuation 38.5 dB

Step 0.5dB

ST ATUSSW204KU

Host System

Remote Device

Multiple Equipment Setup

DSI products feature a programmable
DEVICE NAME to identify each specificunit in a multi-device setup. Over 100
devices can be attached to a system,
each separately programmable.

USB Hubwww.dsinstruments.com
SW204KU Rev 1 Version 1.3

SW204KU
USB COM Port SCPI Commands
RFO 2RFO?
*UNITNAME TomJ*UNITNAME ?
*IDN?
*RST

- Set port 2 as the active port
- Return the active port number- Set a custom nickname for this unit
- Return user set device nickname- Return standard identification string- Reset device(115200 Baud)

Included Windows GUI

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SW204KU Rev 1 Version 1.3

SW204KU
MECHANICAL INFORMATION

www.dsinstruments.com
SW204KU Rev 1 Version 1.3

SW204KU – SP4T RF Switch 20GHz
Ordering Information

SW204KU, 1 - 20GHz, SP4T RF Switch Matrix$849.00

SW6000, 25MHz - 6GHz, SP4T RF Switch Matrix$409.00

Contact Informationwww.dsinstruments.com

support@dsinstruments.com
call us: (805) 242-6685

www.dsinstruments.com
SW204KU Rev 1 Version 1.3