The ACST 1225D-SE Compact Economical Source is a cost-optimized millimeter-wave signal source designed for sub-terahertz applications operating in the 275 to 295 GHz frequency range. It integrates a voltage-controlled oscillator (VCO) with a frequency multiplier chain and built-in control electronics to deliver stable, tunable output power in a compact, plug-and-play module. The unit is intended for laboratory instrumentation, imaging systems, and high-frequency test and measurement setups where space efficiency and ease of integration are critical.

General Specifications:

Device Type: Compact Economical Frequency Source (mmWave / THz Signal Source)
Model Number: 1225D-SE
Output Frequency Range: 275 to 295 GHz
Input Interface: RF/LO drive input (as per internal VCO/multiplier architecture), V-tune control voltage input (0.8 to 5 V typical)
Output Interface: WR-3.4 waveguide, UG-387/U-M flange
Output Power: +9 dBm minimum, +11 dBm typical, +13 dBm maximum
Frequency Control (V-tune): 0.8 to 5 V tuning range for frequency adjustment
Frequency Drift Rate: Approximately 20 to 60 MHz/°C (typical behavior across temperature)
TTL Control Port: ON/OFF modulation (0 V = ON, 5 V = OFF), modulation speed 1 to 10 kHz
Power Supply: 9 V DC input with integrated internal biasing/PSU circuitry
Total Power Consumption: Approximately 3.1 to 4 W
Mechanical Size: 85 × 25 × 25 mm (compact module housing, excluding connectors)
Weight: Approximately 0.3 kg
Output Waveguide Orientation: WR-3.4 standard waveguide output (orientation per module configuration, typically face-mounted waveguide port)

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