VCO drivers (Voltage Controlled Oscillator)
These drivers are suitable for general purpose applications (raster scan, or random access...). The VCO can be modulated (amplitude) from an external signal.
The frequency is externally controlled by an analog signal. An external medium power amplifier will be required to generate the RF power levels required by the AO device.
Data Sheet DRFA10Y-XX
| Frequency range |
Adapted at factory to AO device Max 50-110, 60-150, 90-210, 150-300, 200-350 MHz (Other on request) |
| Frequency control |
0-10 V/ 10 Kohms |
| Modulation Input |
0-5 V / 50 Ohms |
| Sweeping Time |
≤1 μs |
| Power Supply |
24VDC or 110-230 VAC |
| Output RF Power |
Nominal 0 dBm (to be matched with AA power amplifier) |
On request DRFA1.5Y 85-135 MHz, sweeping time 150 ns
DDS drivers (Direct Digital Synthesizer)
To get a high resolution driver with fast switching time, AA has designed direct digital synthesizers based on monolithic IC circuits. 3 models have already been released, and different units can be designed to specific requirements.
These models offer high frequency accuracy and stability and extremely fast switching times, generally of a few tens of nanoseconds. The DAC circuits have been designed with utmost care to obtain clean RF signals, with minimum spurious noise.
| Frequency range |
Max 10-350 MHz (400 MHz on request) |
| Frequency control |
15, 23 or 31 bits (1 bit E/D) |
| Frequency Step |
15 KHz, 60 Hz, 0.25 Hz |
| Modulation Input |
0-5 V / 50 Ohms (8 bits on request) |
| Access Time |
40, 64, 80 ns |
| Power Supply |
24VDC or 110-230 VAC |
On request USB Controller for PC, designed to drive 1 or 2 DDSPA through USB port (Windows XP/NT)
USB controller for DDSPA
This simple tool allows user to control its DDS driver thanks to its computer with a USB link. The provided software allows user to set manually frequency and power (option 8 bits) to the corresponding synthesizer (DDS).
Data Sheet USB-CTRL-DDSPA
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