DDSPA4X Quad-output Rack Direct Digital Synthesizers, Phase control, External Clock
Description
The DDSPA4X is a 110-230 VAC rack based on 4 x DDSPA and hence 4 outputs, dedicated to high accuracy applications. Each output can be independently controlled either through parallel ports for fast communication or through USB. User has the possibility to not only control the frequency/amplitude of the 4 outputs but also their respective phases. With the embedded amplifiers, the DDSPA4X delivers the necessary RF power to control the associated AO devices.
Datasheet (DDSPA4Xxx-d024)Additional information
| Frequency range (MHz) | Associated to AO device, Custom |
|---|---|
| Max RF power(W) | 1, 2.5, 4, 10, 20, Associated to AO device, Custom |
| Frequency Modulation input | 15 bits (15.259 KHz), 23 bits (59.6 Hz), 31 bits (0.23 Hz) |
| External Clock | No, Yes |
| Number of Outputs | 4 |
| Frequency Stability (ppm/°C) | +/- 1 |
| Frequency step / Accuracy | HR: 0.23 Hz (31 bits), LR: 15.259 KHz (15 bits), MR: 59.6 Hz (23 bits) |
| Commutation / sweeping time | ≤100 (HR) |
| Output RF power (dBm) | Up to 10W (others on request) |
| Power Supply Laboratory version | 110-230 VAC |
| Modulation Input Control (AM) | Digital 8 bits through DB44HD & USB |
| Phase Input Control PM | Digital 14 bits through DB15HD & USB |
| Rise Time/Fall time (ns) | < 5ns @200MHz @2W, < 10ns @80MHz @2W |
| Harmonics (dBc) | H2 > 30, H3 > 20 |
| Output Impedance | 50 |
| VSWR | < 1.2/1 |
| Extinction Ratio (dB) | 45 (for F<250MHz) |
| Input / Output connectors | DB15HD, DB44HD, USB / SMA |
| Size / Weight | Rack 19”, 2U, depth 500mm |
| Heat Exchange | Fan + pulsed air |
| Operating Temperature | 10 to 40 |
| Storage Temperature | -40 to +70 non condensing |