USB

Solid State SP2T Switch50Ω

USB-1SP2T-A44

0.1 to 43.5 GHz

THE BIG DEAL
y Super wide bandwidth, solid-state designy High isolation, 60 dB @ 43.5 GHz
y USB control and automationy Daisy-chain control of up to 25 switches
Refer to our website for compliancemethodologies and qualifications

APPLICATIONSy RF signal routing / switch matrices
y Satellite communications up to Ka bandy Military radio, radar & electronic warfare
y Microwave radio / cellular infrastructurey Test & measurement systems

Model No.

USB-1SP2T-A44

Case Style

UE3202Connectors

2.92 mm (female)(Compatiable with SMA and 3.5 mm)

DOWNLOAD

Refer to our website for compliancemethodologies and qualifications

SOFTWARE PACKAGE

PRODUCT OVERVIEW
Mini-Circuits’ USB-1SP2T-A44 is a fast switching solid-state SP2T covering an ultra-wide bandwidth, from 0.1 to 43.5 GHz. The
solid-state design features an impressive combination of high isolation, low insertion loss and good linearity across the entire
band. The switch is supplied in a low profile package with precision 2.92 mm RF connectors.
Refer to our website for compliancemethodologies and qualifications

The daisy-chain control interface with “dynamic addressing” simplifies control integration, allowing multiple switches to becombined into a Master / Slave chain. Simply connect, then power on and the whole chain of up to 25 compatible switches canbe controlled independently through a single USB and software interface.
Full software support is provided, including our user-friendly GUI application for Windows and a full API with programming
instructions for Windows and Linux environments (both 32-bit and 64-bit systems).

KEY FEATURES
FeatureAdvantages

Fast switching sequences

Program automated switching sequences to run with extremely fast transitions and no externalcontrol.

High performance

Solid-state design combining high isolation with low insertion loss from 0.1 to 43.5 GHz.

Dynamic daisy-chain control

Control up to 25 switches through a single USB interface.

USB control

USB HID interface provides easy compatibility with a wide range of software setups and programming environments.

Full software support

User friendly Windows GUI (graphical user interface) allows manual control straight out of the box,
while the comprehensive API (application programming interface) with examples and instructions
allows easy automation in most programming environments.

Trademarks:
Windows is a registered trademark of Microsoft Corporation in the United States and other countries ; Linux is a registered trademark of Linus Torvalds ; Pentium
is a registered trademark of Intel Corporation. Neither Mini-Circuits nor the Mini-Circuits products are affiliated with or endorsed by the owners of the referenced
trademarks. Mini-Circuits and the Mini-Circuits logo are registered trademarks of Scientific Components Corporation.
Rev. E

www.minicircuits.com P.O. Box 350166, Brooklyn, NY 11235-0003 (718) 934-4500 sales@minicircuits.com

ECO-016633
EDR-11713/4USB-1SP2T-A44
MCIL230130
PAGE 1 OF 10

USB

Solid State SP2T Switch

USB-1SP2T-A44

ELECTRICAL SPECIFICATIONS AT 0 TO 50°C
Parameter

Ports

Frequency Range

Insertion Loss-

COM to any active port

Between ports J1 & J2Isolation

COM to any terminated port
(active states)

COM to any terminated port(including disconnectedstate - ports 1 & 2 terminated)

COM port 1(in all active states)

Return Loss

Any port connected to COM

Any terminated port

Condition (GHz)

Min.

-0.1

Typ.

Max.

Unit

43.5

GHz0.1 - 18-1.50

18 - 26

-

2.70

4.00

26 - 35

-

3.30

4.50

35 - 40

-

4.00

5.50

40 - 43.5

-

5.50

7.00

0.1 - 18

53

65

-

18 - 2645

60-

26 - 354556-

35 - 404352-40 - 43.5

41

47

-

0.1 - 18

53

65

-

18 - 2645

55-

26 - 35

45

52

-

3.00

35 - 404250-

40 - 43.5

39

46

-

0.1 - 185065-

18 - 264352-

26 - 354351-

35 - 43.5

40

48

-

0.1 - 18

-

21

11.5

18 - 26

-

14

9.5

26 - 35

-

11.5

8.1

35 - 40-117.7

40 - 43.5-

9.5

5.1

0.1 - 18-211318 - 26-

14

9.5

26 - 35-

11.5

7.4

35 - 40-117.4

40 - 43.5-

8.5

5.1

0.1 - 18-211418 - 26-

17.5

11.5

26 - 35-

141035 - 40-

10

7.4

dBdBdB

Power Input @1 dB Compression

COM to any active port

0.1 - 43.5

-

+27-

dBm

IP3 2

COM to any active port

0.1 - 43.5

-

50-

dBm

--

10-

ns-

-

15-

µs-

-

2-ms-

4.75

55.25

VDC-

-

100150----500

Between COM & active port
(Hot & Cold switching)

0.1 - 40--+2440 - 43.5--+230.1 - 40--+2440 - 43.5--+230.1 - 40--+2440 - 43.5--+23Transition Time 3
Minimum Dwell Time 4High speed mode

Switching Time (USB) 5
Supply Voltage (Vcc)
Supply Current (Icc) 6
Current Pass-through 7

Operating RF Input PowerUSB port

COM to any port
Into any termination

mAdBm

1. COM port is reflective in disconnected state.
2. IP3 is tested with 1 MHz span between signals, +12 dBm per tone.
3. Transition time spec represents the time that the RF signal paths are interrupted during switching and thus is specified without communication delays.
4. Minimum dwell time is the shortest time that can be achieved between 2 switch transitions when programming an automated switch sequence.
5. Switching time(USB) is the time from issuing a single software command via USB to the switch state changing. The most significant factor is the host PC, influenced by CPU load and USB
protocol. The time shown is an estimate for a medium CPU load and USB 2.0 connection.
6. Current consumption specified for a single unit without any slave modules.
7. Pass through current is the maximum supply current handling of a unit with slave modules attached. If controlling a large number of slave modules additional power supplies should be
included to ensure this limit is not exceeded. See page 5 for details.

www.minicircuits.com P.O. Box 350166, Brooklyn, NY 11235-0003 (718) 934-4500 sales@minicircuits.com

PAGE 2 OF 10

USB

Solid State SP2T Switch
ABSOLUTE MAXIMUM RATINGS

USB-1SP2T-A44

CONNECTIONS

Operating Temperature

0°C to 50°C

Port NameConnector Type

Storage Temperature-20°C to 60°C

RF Ports (COM, 1 & 2)

2.92 mm female

DC supply voltage max.

6V

0.1-40 GHz+25 dBm

40-43.5 GHz+24 dBm

RF power in with DC supply
disconnected+20 dBm

RF power ineach port

DC voltage @ RF Ports 8USB

USB type-C receptacle

Serial Control Out

10 Pin Digital Snap Fit female 9

Serial Control In

10 Pin Digital Snap Fit female 9

9. Mating connector is Hirose ST40X-10S-CV(30).

0V

Permanent damage may occur if any of these limits are exceeded. Operating in the range betweenoperating power limits and absolute maximum ratings for extended periods of time may result in reduced
life and reliability
8. If your signal has a DC component use a DC block such as BLK-K44+ to prevent damage to theswitch..

BLOCK DIAGRAM

SerialCtrl OutUSBMICROCONTROLLERMICROCONTROLLER
Control
Control

SerialCtrl InControl

250Ω

Absorptive SPDT Switch

COM50Ω

150Ω

Switch in Disconnected state

1. Simultaneous, bidirectional RF signal transmission with symmetrical performance

alog spec\Portable Test Equipment\RFSW\Schematic files\solid state diagrams\40GHz_Diagram_3.ai
www.minicircuits.com P.O. Box 350166, Brooklyn, NY 11235-0003 (718) 934-4500 sales@minicircuits.com

PAGE 3 OF 10

USB

Solid State SP2T Switch

USB-1SP2T-A44

OUTLINE DRAWING (UE3202)

Control
InControlOut

2x Snap-fit Control
Connectors

AE

4xF
1

3x 2.92 mm Female
Coax. Conn.

H .010 in
THRU ALL

Com

B D

G2JC

USB Type-C
Receptacle
LED
Indicator

KL
E

M

OUTLINE DIMENSIONS ( INCHmm )A
B
3.45 1.700
87.63 43.185

C0.60
15.24

D
0.75
19.05

E0.102.54

F
1.20
30.48

G1.0025.40

H
0.106
2.690

J
3.50
88.90

K0.50
12.70

L0.20
5.08

M
3.70
93.98

weightgrams
550

www.minicircuits.com P.O. Box 350166, Brooklyn, NY 11235-0003 (718) 934-4500 sales@minicircuits.com

PAGE 4 OF 10

USB

Solid State SP2T Switch

USB-1SP2T-A44

CONNECTING MULTIPLE MODULES (DAISY CHAIN)
The USB-1SP2T-A44 model is designed to connect up to 25 modules in series (daisy chain) using dynamic addressing, meaning
there is no need to specifically set the address of the modules. The addresses will be set automatically as part of establishing thecommunications with the computer. The module connected to the computer’s USB port will be assigned address 0 (master), the firstmodule connected to it will get address 1 (slave) and subsequent modules incrementing up to address 24 (slave).

USB control(limited to 500 mA max)USB

Serial Ctrl In

Serial Ctrl Out

Power adaptor

USB

Serial Ctrl In

Serial Ctrl Out

USB

Serial Ctrl In

Serial Ctrl Out(Additional power supply willneed to be connected to keep
total current below 500 mA.)

USB

Serial Ctrl In

Serial Ctrl Out

Module 0

Module 1

Module 2Module 24

RF Connectors

RF Connectors

RF Connectors

RF Connectors

Slave 1

Slave 2

Slave 24

MasterConnections between modules will be made using the serial in/out ports with the module connected to the PC act as a master and allother as slave modules. All control will be through the master module (address 0) which is the only one communicating with the PC.
Serial control out port of each module should be connected to the serial control in port of the next module.
Power will be supplied from the PC via the master module up to a maximum of 500 mA. Generally, additional power supply willbe needed to keep total current below 500 mA. All power supplies should be connected to the module via the module’s USB port.
Connecting an additional power supply will automatically cut off power draw from the serial control in port for that module.
The serial master/slave bus allows connecting modules of different types to the same daisy chain as long as all support Mini-Circuits
Dynamic addressing setup. To add a new module to the setup, simply connect the module and refresh the address listing, no needto reset any of the existing modules or assign addresses manually.

Note: Different module types may have different current consumption which will change the number of units which can be connected
before an additional power supply is needed.

www.minicircuits.com P.O. Box 350166, Brooklyn, NY 11235-0003 (718) 934-4500 sales@minicircuits.com

PAGE 5 OF 10

USB

Solid State SP2T Switch

USB-1SP2T-A44

TYPICAL PERFORMANCE CURVES

Insertion Loss over Temperature (J1 Active)

Insertion Loss J1 - J2 Active

0.0

0.00°C

+25°C

+50°C

COM-J1-1.5

Insertion Loss [dB]

Insertion Loss [dB]

-1.5

-3.0

-4.5

-6.0

-7.5

-3.0-4.5

-6.0

0.00

9.00

18.00

27.00

36.00

-7.5

45.00

0.00

9.00

18.00

Frequency [GHz]

Isolation Com to J1 (J2 Active)

36.00

45.00

Isolation Com to J2 (J1 Active)

-52

-52

Isolation [dB]

-40

-64

-76

-88

-64

-76

-88
0°C
0.00

9.00

+25°C
18.00

+50°C
27.00

0°C

36.00

45.00

-100

0.00

9.00

Frequency [GHz]

+25°C
18.00

+50°C
27.00

36.00

45.00

Frequency [GHz]

Isolation J1 to J2 (J1 Active)-40-52Isolation [dB]

Isolation [dB]27.00

Frequency [GHz]-40-100

COM-J2-64-76-880°C-1000.00

9.00

+25°C
18.00

+50°C
27.00

36.00

45.00

Frequency [GHz]www.minicircuits.com P.O. Box 350166, Brooklyn, NY 11235-0003 (718) 934-4500 sales@minicircuits.com

PAGE 6 OF 10

USB

Solid State SP2T Switch

USB-1SP2T-A44

TYPICAL PERFORMANCE CURVES (CONTINUED)

Return Loss @ COM over Temperature (J1 Active)
00°C

+25°C

+50°C

Return Loss [dB]-10-20-30-40-500.00

9.00

18.00

27.00

36.00

45.00

Frequency [GHz]Return Loss @ J1 over Temperature (J1 Active)

Return Loss @ J1 over Temperature (J1 Terminated)

000°C

+25°C

+50°C

0°C

-20-30-40-50-20-30

-40

0.00

9.00

18.00

27.00

36.00

-50

45.00

0.00

9.00

18.00

Frequency [GHz]Return Loss @ J2 over Temperature (J2 Active)

36.00

45.00

Return Loss @ J2 over Temperature (J2 Terminated)
00°C

+25°C

+50°C

0°C

+25°C

+50°C

-10

Return Loss [dB]

-10

Return Loss [dB]27.00

Frequency [GHz]0-20-30-40-50+50°C-10

Return Loss [dB]

Return Loss [dB]

-10+25°C

-20

-30

-40

0.00

9.00

18.00

27.00

Frequency [GHz]

36.00

45.00

-50

0.00

9.00

18.00

27.00

36.00

45.00

Frequency [GHz]www.minicircuits.com P.O. Box 350166, Brooklyn, NY 11235-0003 (718) 934-4500 sales@minicircuits.com

PAGE 7 OF 10

USB

Solid State SP2T Switch

USB-1SP2T-A44

SOFTWARE SPECIFICATIONSSOFTWARE & DOCUMENTATION DOWNLOAD:
y Mini-Circuits’ full software and support package including user guide, Windows GUI, DLL files, programming manual andexamples can be downloaded free of charge from: https://www.minicircuits.com/softwaredownload/solidstate.html
y Please contact testsolutions@minicircuits.com for support

MINIMUM SYSTEM REQUIREMENTS:
Parameter
Interface

Requirements
USB HID or Daisy Chain dynamic addressing

SystemRequirements

Hardware

GUIWindows 7 or later

USB API DLLWindows 7 or later and programming environment with ActiveX or .NET support

USB Direct Programming

Linux, Windows 7 or later

Daisy Chain dynamic addressing

An additional Mini-Circuits model supporting dynamic addressing

Intel i3 (or equivalent) or later

APPLICATION PROGRAMMING INTERFACE (API)USB SUPPORT (WINDOWS):y ActiveX COM DLL file for creation of 32-bit programs
y .NET library DLL file for creation of 32 / 64-bit programsy Supported by most common programming environments
USB SUPPORT (LINUX):y Direct USB programming using a series of USB interrupt codes
y Full programming instructions and examples available for a wide range of programming environments / languages.

www.minicircuits.com P.O. Box 350166, Brooklyn, NY 11235-0003 (718) 934-4500 sales@minicircuits.com

PAGE 8 OF 10

USB

Solid State SP2T Switch

USB-1SP2T-A44

GRAPHICAL USER INTERFACE (GUI) FOR WINDOWS - KEY FEATURES
y Connect via USB
y Run GUI in “demo mode” to evaluate software without a hardware connectiony View and set switch states at the click of a button
y Control up to 25 units from a single USB control
y Configure and run timed switching sequenceswww.minicircuits.com P.O. Box 350166, Brooklyn, NY 11235-0003 (718) 934-4500 sales@minicircuits.com

PAGE 9 OF 10

USB

Solid State SP2T Switch

USB-1SP2T-A44

ORDERING INFORMATION
Please contact Mini-Circuits’ Test Solutions department for price and availability: testsolutions@minicircuits.com

ModelDescription

USB-1SP2T-A44

USB RF SP2T switch

Included Accessories

Part No.

USB-CBL-AC-3+

Description
3.3 ft (1.0 m) USB cable: USB type A (Male) to USB type C(Male)OPTIONAL ACCESSORIES
USB-CBL-AC-3+ (Spare)3.3 ft (1.0 m) USB cable: USB type A (Male) to USB type C (Male)

USB-CBL-CC-3+

3.3 ft (1.0 m) USB Cable: USB type C (Male) to USB type C (Male)

CBL-5FT-MMD+

5.0 ft (1.5 m) Digital Snap Fit (male-male) cable assembly (daisy chain)

CBL-1.5FT-MMD+

1.5 ft (0.5 m) Digital Snap Fit (male-male) cable assembly (daisy chain)

USB-AC/DC-5

AC/DC +5V power adaptor with USB connector 10, 11

10. The power adaptor may be used to provide additional power via USB port when connecting several units in daisy chain.
11. Includes power plugs for US, UK, EU, IL, AU & China. Plugs for other countries are also available. If you need a power cord for a country not listed
please contact testsolutions@minicircuits.com

NOTES:
A. Performance and quality attributes and conditions not expressly stated in this specification document are intended to be excluded and do not form a part of this specification document.
B. Electrical specifications and performance data contained in this specification document are based on Mini-Circuit’s applicable established test performance criteria and measurement instructions.
C. The parts covered by this specification document are subject to Mini-Circuits standard limited warranty and terms and conditions (collectively, “Standard Terms”); Purchasers of this part are entitled to
the rights and benefits contained therein. For a full statement of the Standard Terms and the exclusive rights and remedies thereunder, please visit Mini-Circuits’ website at https://www.minicircuits.
com/terms/viewterm.html

www.minicircuits.com P.O. Box 350166, Brooklyn, NY 11235-0003 (718) 934-4500 sales@minicircuits.com

PAGE 10 OF 10