TDD pa power amplifier
TDD PA Power Amplifier Module for DVB-T COFDM TX Transmitter transmission 5w
The pa power amplifier module realizes the power amplification output of the RF signal. When the input voltage is 28V, connect to COFDM modulation board, the output power can be up to 5W (+30dBm)
Funktioner
- Fungerande frekvensband: 815MHz~830MHz (more frequency is adjustable)
- RX Gain: 1dB+/-1dB
- TX Gain: 10dB+/-1dB
- TX Power: 5W
Specifikation
| Punkt | Parameter | Notera |
| Frekvensomfång (MHz) | 815-830Mzh | accept modify according to buyer’s requirement |
| Output power (W) | 5W | No ALC control |
| In-band group delay (ns) | ≤50 | |
| TX gain (dB) | 16±1.0 | Set gain according to customer requirements |
| In-band fluctuation | ≤1dB | Peak |
| Ingångsnivå (dBm) | +22±1.0 | |
| Axelförhållande (dBc) | ≤-30 | |
| RX gain (dB) | 5 | |
| RX Noise figure (dB) | ≤2,5 | |
| RF switching level | +3.3V～+5V | High level send low-level receive |
| Isolation | 50dB | |
| Power supply requirements | +11V～+18V Vdc | |
| RX operating current | ≤0.6A | |
| TX operating current | ≤3.0A | |
| Arbetstemperatur | -20～+70℃ | |
| Gränssnittstyp | SMA-50KFD | |
| Module Dimension (mm) | 105 * 60 * 14 |
Shape and installation instructions
1. Mått: 105 * 60 *14 (mm) (without socket)
2. Interface form:
1 power supply conditions: +12V strömförsörjning: plug
2 RF input interface: SMA-50KFD
RF output interface: SMA-50KFD
3. Mounting hole diameter size: 4 Φ3.5 through holes for 4 mounting holes for installation.
20W
Specifikation
| Punkt | Parameter | Notera |
| Frekvensomfång (MHz) | 500-530Mzh | accept modify according to buyer’s requirement |
| Output power (W) | 20W | No ALC control |
| In-band group delay (ns) | ≤50 | |
| TX gain (dB) | 48±1.0 | Set gain according to customer requirements |
| In-band fluctuation | ≤1dB | Peak |
| Ingångsnivå (dBm) | -80 | |
| Axelförhållande (dBc) | ≤-30 | |
| RX gain (dB) | 5 | |
| RX Noise figure (dB) | ≤2,5 | |
| RF switching level | +3.3V～+5V | High level send low-level receive |
| Isolation | 50dB | |
| Power supply requirements | ≤＋28 Vdc 20W/3A | |
| RX operating current | ≤0.6A | |
| TX operating current | ≤3.0A | |
| Arbetstemperatur | -20～+65℃ | |
| Gränssnittstyp | SMA-50KFD | |
| Module Dimension (mm) | 178 × 91 × 25 |
Power supply conditions:
+28V strömförsörjning: Stift 2
+12V strömförsörjning: Stift 3
Grounding: Stift 1
ISDB-T.com_buyer –
This TDD PA Power Amplifier Module has been an absolute game-changer for my DVB-T/COFDM transmitter setup. The build quality is exceptional, and the installation process was surprisingly straightforward. I opted for the 10W version, and the boost in transmission power and signal clarity is nothing short of impressive. It delivers a incredibly stable and clean output, drastically improving my range and signal penetration without any noticeable distortion. The module operates efficiently and remains remarkably cool even after extended use, which speaks volumes about its design. It has brought a level of professional-grade reliability and performance to my transmission system that I was previously missing. For anyone looking to significantly enhance their broadcast capabilities, this amplifier is an outstanding investment and comes highly recommended!