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SMW C-Band BDC 3.40-4.80 GHz
The C-Band PLL Block Down Converter (BDC) is designed for receiving C-Band signals within the 3.40 to 4.80 GHz frequency range. It offers a configurable fixed gain from 0 dB to 50 dB, set at the factory. Typically, it operates alongside an external C-band low-noise amplifier (LNA).
The RF input is provided via an SMA female connector, while the IF output delivers an inverted L-Band spectrum through N-type, F-type, or SMA connectors.
Available customization options include tailored LO frequencies, adjustable gain settings, a dedicated DC power input, and a separate port for an external 10 MHz reference signal.
| Specification | Details |
|---|
| Model | SMW C BDC 3.40–4.80 GHz 1 Band |
| Input Frequency | 3.400–4.800 GHz |
| LO Frequency | 4.55 GHz |
| Output Frequency | 950 – 2150 MHz |
| Input Connector | SMA female, 50 Ω |
| Input VSWR | 2.3:1 max. |
| DC Input | +12 to +18 V, 430 mA typ. (supplied through output connector) |
| Gain | 0 dB to 50 dB in 5 dB steps (factory programmable) |
| Flatness | ± 0.4 dB max. within 30 MHz, ±2 dB across the full band |
| Noise Figure | 3.0 dB / 289 K typical @ 50 dB gain |
| Phase Noise | -40 dBc/Hz at 10 Hz |
| Group Delay | ±1 ns max. |
| LO Leakage | -60 dBm max. @ RF input |
| Image Rejection | 40 dB min. |
| Output P1dB | +15 dBm typ. |
| Output IP3 | +25 dBm typ. |
| Output VSWR | 2.1:1 max. |
| Output Connector | F-type 75Ω, N-type 50Ω, or SMA-type 50Ω |
| Storage & Operating Temp | -40 to +80ºC, -40 to +176°F |
| Dimensions | 127 x 80 x 30 mm (F- & SMA-connector), 133 x 80 x 30 mm (N-connector) |
| Weight | 330 g (F- & SMA-connector), 344 g (N-connector) |
| MTBF | >489,000 hours (Ground Fixed), >245,000 hours (Airborne) |
| Options | Custom configurations, low profile to fit 1U, separate SMA connector for DC input or Ext. 10 MHz ref. |
