TEKBOX TBLPA1 Linear Wideband RF Power Amplifier
Introduction
The TBLPA1 linear wideband power amplifier is a general purpose RF amplifier for test and measurement applications. It has an output power capability of up to 1W and can be used in the frequency range from 10 MHz to 1 GHz and with reduced output power capability even beyond.
Picture 1 – TBLPA1 linear RF power amplifier, front view
Picture 2 – TBLPA1 TBMDA1 linear RF power amplifier, rear view
Application:
General-purpose RF power amplifier
Electrical Specifications
Technical Data:
- Input / Output: 50 Ohm, N female
- Supply Voltage range: 110 V…240 V
- Supply power consumption: 15 W
- Operating temperature range: -20°C to 60°C
- Frequency range: 50 MHz – 1 GHz, (3MHz – 1.3GHz with reduced output power capability)
- Gain: 36dB typ., see table 1 for details
- 1dB output compression point @ 10MHz: +29.5 dBm typ.
- 1dB output compression point @ 100 MHz: +30.9 dBm typ.
- 1dB output compression point @ 500 MHz: +31.3 dBm typ.
- 1dB output compression point @ 1 GHz: +28.7 dBm typ.
- Noise figure: 2.5 dB typ.
- 2nd harmonic, 50MHz, Pout=30dBm: < – 50 dBc typ
- 2nd harmonic, 200MHz, Pout=30dBm: < – 40 dBc typ
- 3rd harmonic, 50MHz, Pout=30dBm: < – 30 dBc typ
- 3rd harmonic, 200MHz, Pout=30dBm: < – 25 dBc typ
Total harmonic distortion:
- 0.85% @200MHz, Pout=27dBm typ. 1.13% @200MHz, Pout=28dBm typ. 2.33% @200MHz, Pout=29dBm typ. 5.6% @200MHz, Pout=30dBm typ.
- Third order intercept point: +50dBm, @200MHz, ∆ f = 200kHz typ. Input return loss:
- 50 MHz: 11dB typ.
- 800 MHz: 16dB typ.
Output VSWR:
- 50 MHz: 2.1:1
- 800 MHz: 1.4:1
Maximum ratings:
- Maximum input power: +3 dBm
The output of the TBLPA1 is quite tolerant to output mismatch, however open or shorted load is not recommended, as it potentially can cause damage.
Small Signal Gain (measured with Pin=-20 dBm):
| 3 MHz | 5 MHz | 10 MHz | 25 MHz | 50 MHz | 100 MHz | 200 MHz | 300 MHz | 400 MHz |
| 16 dB | 34 dB | 43 dB | 42 dB | 41 dB | 40 dB | 39 dB | 38.5 dB | 38.3 dB |
| 500 MHz | 600 MHz | 700 MHz | 800 MHz | 900 MHz | 1 GHz | 1.1 GHz | 1.2 GHz | 1.3GHz |
| 38 dB | 37.8 dB | 37 dB | 35.4 dB | 36.5 dB | 36.2 dB | 35.5 dB | 33.7 dB | 32.1 dB |
Linear output power:
| 3 MHz | 5 MHz | 10 MHz | 25 MHz | 50 MHz | 100 MHz | 200 MHz | 300 MHz | 400 MHz |
| 16 dBm @Pin= +1 dBm | 25.2 dBm @Pin= -8 dBm | 28.5 dBm @Pin= -15 dBm | 28.8 dBm @Pin= -13 dBm | 29.6 dBm @Pin= -11 dBm | 30.6 dBm @Pin= -8 dBm | 30.2dBm @Pin= -8 dBm | 30.2 dBm @Pin= -8 dBm | 30.2 dBm @Pin= -8 dBm |
| 500 MHz | 600 MHz | 700 MHz | 800 MHz | 900 MHz | 1 GHz | 1.1 GHz | 1.2 GHz | 1.3GHz |
| 30 dBm @Pin= -8 dBm | 29.7 dBm @Pin= -8 dBm | 29 dBm @Pin= -8 dBm | 27.4 dBm @Pin= -8 dBm | 28.4 dBm @Pin= -8 dBm | 28 dBm @Pin= -8 dBm | 27.4 dBm @Pin= -8 dBm | 25dBm @Pin= -9 dBm | 23.2dBm @Pin= -9 dBm |
1dB compression point:
| 3 MHz | 5 MHz | 10 MHz | 25 MHz | 50 MHz | 100 MHz | 200 MHz | 300 MHz | 400 MHz |
| 17 dBm @Pin= +3 dBm | 26.1 dBm @Pin= -6 dBm | 29.5 dBm @Pin= -13 dBm | 30.1 dBm @Pin= -11 dBm | 30.3 dBm @Pin= -9 dBm | 30.9 dBm @Pin= -7 dBm | 30.9dBm @Pin= -7 dBm | 31.1 dBm @Pin= -6 dBm | 31.5 dBm @Pin= -6 dBm |
| 500 MHz | 600 MHz | 700 MHz | 800 MHz | 900 MHz | 1 GHz | 1.1 GHz | 1.2 GHz | 1.3GHz |
| 31.3 dBm @Pin= -6 dBm | 30.5 dBm @Pin= -6 dBm | 29.5 dBm @Pin= -6 dBm | 28 dBm @Pin= -6 dBm | 28.5 dBm @Pin= -6 dBm | 28.7 dBm @Pin= -6 dBm | 27.7 dBm @Pin= -7 dBm | 25.5dBm @Pin= -7.5 dBm | 23.9dBm @Pin= -7 dBm |
WARNING:
Never connect the output of the TBLPA1 directly to the input of a spectrum analyzer. Check the maximum input ratings of the spectrum analyzer and protect it with an appropriate attenuator. Open or shorted load is not recommended, potentially can cause damage.
Example:
Rigol DSA815 – maximum input power rating: +20dBm
Ordering Information
| Part Number | Description |
| TBLPA1-EU | Linear wideband power amplifier, 2 pcs 75cm N-male to N-male cables, 1 pc 30dB / 10W attenuator with N-connectors, , C13 Schuko power cord |
| TBLPA1-US | Linear wideband power amplifier, 2 pcs 75cm N-male to N-male cables, 1 pc 30dB / 10W attenuator with N-connectors, C13 US power cord |
| TBLPA1-UK | Linear wideband power amplifier, 2 pcs 75cm N-male to N-male cables, 1 pc 30dB / 10W attenuator with N-connectors, C13 English power cord |
| TBLPA1-AU | Linear wideband power amplifier, 2 pcs 75cm N-male to N-male cables, 1 pc 30dB / 10W attenuator with N-connectors, C13 Australian power cord |
History
| Version | Date | Author | Changes |
| V1.0 | 6.9.2018 | Mayerhofer | Creation of the document |
| V1.1 | 17.9.2018 | Mayerhofer | Corrected maximum input power |
| V1.2 | 30.03.2021 | Mayerhofer | Updated Chapter 3 |
| V1.3 | 26.05.2021 | Mayerhofer | Updated maximum ratings |
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