Description
The National Instruments SCXI-1190 Multiplexer Module is a high-performance Quad 4-Channel Multiplexing Switch Module designed to handle signal frequencies ranging from DC to 1.3 GHz. It is capable of supporting a maximum voltage of 24 V and a maximum current of 1 A at 24 V. This versatile module can be controlled using NI-SWITCH control software and is compatible with multiple development environments, including C/C++, LabVIEW, Visual Basic, and LabWindows/CVI.
The SCXI-1190’s switch type is reflective, meaning that channels not switched to the common channel remain unterminated, which could reflect signals back to their source. It is important to note that unterminated channels may affect high-power RF sources. The module comes equipped with five SMB male connectors per bank, providing a characteristic impedance of 50 Ohms. The relay contacts are made of gold-clad silver, ensuring reliable performance and longevity with a mechanical operation rating of 5 × 106 cycles.
Each channel of the SCXI-1190 can handle a maximum switching power of 24 W, and the module boasts an impressively quick rise time of less than 300 picoseconds and a signal delay of less than 3 nanoseconds, ensuring minimal impact on signal integrity during switching operations.
| Attribute | Specification |
|---|---|
| Product | National Instruments SCXI-1190 Multiplexer Module |
| Type | Quad 4-Channel Multiplexing Switch Module |
| Signal Frequency Range | DC to 1.3 GHz |
| Maximum Voltage | 24 V |
| Maximum Current | 1 A at 24 V |
| Control Software | NI-SWITCH |
| Supported Development Environments | C/C++, LabVIEW, Visual Basic, LabWindows/CVI |
| Switch Type | Reflective |
| Termination | Unterminated channels |
| Mechanical Operations | Rated for 5 × 106 |
| Connectors | Five SMB male connectors per bank |
| Characteristic Impedance | 50 Ohms |
| Contact Material | Gold-clad silver |
| Maximum Switching Power | 24 W per channel |
| Rise Time | Less than 300 ps |
Question 1: What are the advantages and potential limitations of the reflective switch type in the National Instruments SCXI-1190 Multiplexer Module when used with high-power RF sources?
Answer 1: The National Instruments SCXI-1190 Multiplexer Module is compatible with multiple development environments for controlling its quad 4-channel switching capabilities, including C/C++, LabVIEW, Visual Basic, and LabWindows/CVI.
Question 2: What development environments are compatible with the National Instruments SCXI-1190 Multiplexer Module for controlling its quad 4-channel switching capabilities?
Answer 2: The National Instruments SCXI-1190 Multiplexer Module can support a maximum voltage of 24 V and a maximum current of 1 A at 24 V, and it can be controlled using NI-SWITCH software, with compatibility across multiple development environments including C/C++, LabVIEW, Visual Basic, and LabWindows/CVI.
Question 3: What is the maximum voltage and current that the National Instruments SCXI-1190 Multiplexer Module can support, and what software and development environments are compatible for controlling it?
Answer 3: The National Instruments SCXI-1190 Multiplexer Module can handle signal frequencies from DC to 1.3 GHz, supports a maximum voltage of 24 V, and a maximum current of 1 A at 24 V, and it is compatible with NI-SWITCH control software as well as development environments such as C/C++, LabVIEW, Visual Basic, and LabWindows/CVI.
Question 4: How does the reflective switch type of the National Instruments SCXI-1190 Multiplexer Module affect high-power RF sources due to its characteristic of leaving channels unterminated?
Answer 4: The reflective switch type of the National Instruments SCXI-1190 Multiplexer Module affects high-power RF sources by potentially reflecting signals back to their source when channels are left unterminated, which may cause signal integrity issues or interference.
Question 5: What are the signal frequency range and maximum voltage and current specifications of the National Instruments SCXI-1190 Multiplexer Module, and which software and development environments is it compatible with?
Answer 5: The advantages of the reflective switch type in the National Instruments SCXI-1190 Multiplexer Module include the ability to quickly switch between channels with minimal impact on signal integrity, as indicated by its quick rise time and low signal delay. However, a potential limitation is that channels not switched to the common channel remain unterminated, which can result in signal reflection back to the source and may negatively affect high-power RF sources due to the unterminated channels.
