13 cm DATV converter

- Design realized using the latest smt components.
- Optimal performance whilst transmitting on 23 cm by effective input filtering.
- Unconditionally stable, no oscillations under mismatch conditions.
- The silver-plated printed circuit board with plated through holes has no
- trimming points.
- E-pHEMT GaAs FETs are used in a two-stage hf amplifier and guarantee low
- noise and a high output intercept point.
- A temperature compensated active biasing technique ensures settings with
- excellent stability.
- Input frequency range: 2.2 – 2.6 GHz. Gain hf part 28.5 dB (within 1 dB),
- noise figure 0.72 dB maximum.
- Low phase noise and high stability is achieved using a SAW resonator in the
- Local Oscillator.
- L.O. frequency: 916.5 MHz.
- Double balanced mixer features excellent L-R isolation and wide bandwidth.
- By additional filtering 50 dB L-I isolation is achieved.
- A 3.5 GHz. broadband silicon monolithic amplifier is used in the I.F. section.
- Total gain 42 dB typical.
- Power supply voltage window: 8 – 18V.
- Transzorb implemented for transient voltage protection.