Description
The Part Number 780587-44 identifies a specific model of PXI Switches, known as the PXIe-2544. This device is categorized as a PXI RF Multiplexer Switch Module, designed and manufactured by National Instruments. Its configuration is defined as an 8×1 Terminated Multiplexer, tailored for applications requiring efficient signal routing.
The Input Frequency Minimum is set at 10 MHz, ensuring compatibility with a range of RF signals. It operates with a Characteristic Impedance of 50 ohms (Z0), optimized for standard RF applications. The module can handle Maximum RF Signals up to 6.6 GHz, and it features AC Coupling to block DC components in RF signals. The Maximum DC Input Voltage it can tolerate is ±8 volts, safeguarding the device against excessive DC levels.
The Switch Type employed in this module is FET, known for its fast switching times and low insertion loss. Connection to the module is facilitated through SMA connectors, a standard in the industry for high-frequency applications. It supports a Maximum Safe Continuous RF Power (Chassis On) of +30 dBm and a Maximum Safe Continuous RF Power (Chassis Off) of +20 dBm, indicating its robustness in various operational conditions.
The Insertion Loss varies by frequency, which is a common characteristic of RF devices, influenced by the Thermal Coefficient for Insertion Loss (α) at 3,402 ppm/°C. This highlights the device’s performance stability over temperature variations. The Maximum Switch Operating Time is impressively quick at 122 microseconds, enabling swift signal routing.
Physically, the module weighs 538 grams and has dimensions of
| Specification | Detail |
|---|---|
| Part Number | 780587-44 |
| Category | PXI Switches |
| Model | PXIe-2544 |
| Type | PXI RF Multiplexer Switch Module |
| Manufacturer | National Instruments |
| Configuration | 8×1 Terminated Multiplexer |
| Input Frequency Minimum | 10 MHz |
| Characteristic Impedance | 50 ohms (Z0) |
| Maximum RF Signal | 6.6 GHz |
| AC Coupling | Yes |
| Maximum DC Input Voltage | ±8 volts |
| Switch Type | FET |
| Connectors | SMA |
| Maximum Safe Continuous RF Power (Chassis On) | +30 dBm |
| Maximum Safe Continuous RF Power (Chassis Off) | +20 dBm |
| Insertion Loss | Varies by frequency |
| Thermal Coefficient for Insertion Loss (α) | 3,402 ppm/°C |
| Maximum Switch Operating Time | 122 microseconds |
| Weight | 538 grams |
| Dimensions (L x W x H) | 8.5 x 0.8 x 5.1 inches |
Question 1: What’s the max RF frequency the PXIe-2544 supports?
Answer 1: 6.6 GHz
Question 2: What type of connectors does the PXIe-2544 use?
Answer 2: SMA connectors
Question 3: What switch type is used in the PXIe-2544?
Answer 3: FET
Question 4: What’s the max DC input voltage for the PXIe-2544?
Answer 4: ±8 volts
Question 5: How quick is the PXIe-2544’s max switch operating time?
Answer 5: 122 microseconds



