Description
The RF Digitizer PXI-5621, with Part Number 778281-02, is a high-performance device designed for a wide range of applications. It features a resolution of 14-bit, ensuring precise digital representation of the analog input signal. With an onboard memory of 64MB, it can store large amounts of digitized data before transferring it to a host system.
The PXI-5621 operates at a sample rate of up to 64 MS/s (Mega Samples per second), which allows for the accurate capture of high-frequency signals. The device supports a sample rate range from 1 kS/s to 64 MS/s, providing flexibility in various testing scenarios. Its DC Coupled coupling type ensures that both AC and DC components of the input signal are accurately digitized.
This digitizer has one channel, making it ideal for applications where a single signal source is analyzed at a time. The input impedance is specified at 50 Ω nominal, matching the standard impedance of most RF systems and minimizing signal reflections. The maximum input signal level it can handle is +8 dBm (±0.794 Vp), suitable for a wide range of signal strengths.
For triggering, the PXI-5621 offers Software, Digital, and Immediate modes, providing versatility in capturing the desired signal segments. It requires only one PXI slot for installation, making it an efficient use of space in a PXI chassis. The dimensions of the device are 3.9 x 6.3 x 0.8 inches, compact enough for integration into most systems without issue.
The digitizer features an external frequency reference input with an SMA female connector, allowing for synchronization with external reference sources. Additionally, it has an external trigger input (PFI 1) with an SMB male connector, enabling precise control over the timing of signal acquisition.
| Specification | Detail |
|---|---|
| Part Number | 778281-02 |
| Category | RF Digitizers |
| Model | PXI-5621 |
| Resolution | 14-bit |
| Memory | 64MB |
| Sample Rate | 64 MS/s |
| Coupling Type | DC Coupled |
| Channels | 1 |
| Sample Rate Range | 1 kS/s to 64 MS/s |
| Input Impedance | 50 Ω nominal |
| Max Input Signal Level | +8 dBm (±0.794 Vp) |
| Triggering Modes | Software, Digital, Immediate |
| PXI Slot Requirement | 1 |
| Dimensions | 3.9 x 6.3 x 0.8 in |
| External Frequency Reference Input | SMA female connector |
| External Trigger | PFI 1 – SMB male |
| Dither |


