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Specific request

Multi channels drivers for Polychromatic Modulators


MDS - Multi Digital Synthesizer

The associated driver MDSnC, based on DDS (Direct Digital Synthesizer), has been specially designed in order to exploit the best of the AOTFnC features.

Its compact design with single power supply, low RF emissions and ease of use will satisfy the most demanding of applications, where accuracy and flexibility are key requirements. Thanks to its complete digital design and integrated microcontroller setting up is fast, simple and repeatable. Access to and adjustments of functions is simple with either a bright LCD display (with remote control adjustment) or through a RS232 serial link (with computer control) or USB communication.

All parameters are stored in an EEPROM and are automatically loaded after each switch on. Each line is externally controlled by a distinct modulation input signal which can be TTL or analog. Additionally, all lines can be simultaneously controlled by a blanking signal which produces smooth effects without modifying the colorimetric balance. The combination of the modulation input and blanking signals provides the best extinction ratio performance (> 100 dB).
Model MDSnC driver, 1,4 or 8 channels
Number of channels 1, 4, 8
Frequency range Will be adapted to AO up to 200 MHz
Frequency stability +/- 2 ppm / °C
Frequency accuracy < 1 KHz
Frequency step Nom 1 KHz
Frequency control Remote Control or USB, Option : RS232
Rise Time / Fall Time (10-90 %) < 50 ns
Modulation Input Control Analog 0-5 V / 10 KW or Analog 0-10 V / 10 KW
Blanking input Control Analog 0-5 V or Analog 0-10 V / 10 KW (optionTTL)
Power Supply OEM version : 24 VDC - nom 0,85 A
Laboratory version : 110/230 VAC - 50Hz60 Hz
Extinction ratio @ 125 MHz MOD IN > 80dB typ 90 dB
BLK > 70 dB typ 80 dB
MOD IN + BLK > 90 dB typ 100 dB
Output RF power 22 dBm per channel [up to 36 dBm]
Output Impedance 50 W
V.S.W.R. Nom < 1,5/1
Input/Output connectors DB25 / SMA (DB9 for RS232)
Size OEM version : 207 x 127 x 20,2 mm3
Laboratory version : Rack 19’’, 1U
Weight OEM version : nom 1 kg
Laboratory version : nom 4 kg
Heat exchange OEM version : Conduction
Laboratory version : stand alone
Operating temperature 10 to 40 °C