KU PA 4550 A
UHF MOSFET Power Amplifier
450 ... 500 MHz • 23 W
| Specifications | |
| Type | KU PA 4550 A |
| Frequency range | 450 ... 500 MHz |
| Input power | typ. 30 mW (3 mW optional) |
| Output power P1dB | min. 23 W |
| Saturation output power | typ. 35 W |
| Gain | typ. 30 dB |
| Gain flatness | +/- 1 dB |
| Harmonic rejection | typ. 60 dB |
| IM3 @ 5 W PEP | typ. -30 dBc |
| VSWR of load | max. 1.8:1 |
| Maxium case temperature | +55 °C |
| Supply voltage | +12 V DC |
| Current consumption | max. 8.5 A |
| Quiescent current | typ. 4 A |
| Input connector / impedance | SMA-female, 50 ohms |
| Output connector / impedance | SMA-female, 50 ohms |
| Case | milled aluminium |
| Dimensions (mm) | 130 x 60 x 20 |
| Weight | typ. 260 g |
Block diagram
Frequency response (diagram)
Features
- Good linearity
- Built-in low pass filter for good harmonic rejection
- Over voltage protection and reverse polarity protection
- Monitor output for forward power detection
Applications
- Digital Video Broadcast (DVB-T, DVB-S)
- COFDM systems using modulation types QPSK, QAM
- Analog transmission systems
Options
- Amplifier mounted on heat sink with fans
- Amplifier installed into 19" rackmount case
- Gain typ. 40 dB (input power typ. 3 mW)
Accessories
- Recommended heat sink: SK 150 - 62 1)
- Recommended fan: FAN 60x60 12 V 1)
- Thermal cut-out thermostat TS-65/10
You will find further information for dimensioning heat sinks under the rubric heat sinks.
1) Dimensioned for 25 °C ambient temperature
Important note
- Amplifier does not contain coaxial relais!
- Specifications subject to change without notice -
