Description
TEKBOX TBMDA-CDN25 25W 100 kHz to 250 MHz MODULATED WIDEBAND POWER AMPLIFIER
The Tekbox TBMDA-CDN25 modulated amplifier provides the necessary power, bandwidth and modulation for conducted immunity testing using CDNs and BCI probes in the frequency range from 100 kHz to 250 MHz. It is designed to be driven by signal generators or by tracking generators of spectrum analyzers. With a 1 dB compression point of up to 25 W in the frequency range 100 kHz to 250 MHz it can generate test levels class 1, class 2, class 3 and class X according to ISO / EN 61000-4-6. A built in AM / PM – modulator enables use of tracking generators as signal source. The TBMDA-CDN25 has sufficient gain to achieve maximum output power with 0 dBm provided by a spectrum analyzer tracking generator.
Besides 1 kHz, 80% AM, the TBMDA-CDN25 provides built in modulation capability to generate 1 kHz, 50% duty cycle PM signals. In PM mode, the TBMDA-CDN25 can also generate a 217 Hz Signal with 12.5% duty cycle in order to simulate mobile phone TDMA noise.
Features:
- CW Amplifier (Modulation Off)
- 1kHz, 80% AM Modulation
- 1kHz, 50% Duty Cycle Pulse Modulation
- 217Hz, 12.5% Duty Cycle Pulse Modulation
Applications:
General-purpose wideband RF power amplifier
Wideband RF power amplifier for conducted immunity testing driving CDNs or BCI-probes
Wideband RF power amplifier for radiated immunity testing, driving near field probes
Wideband RF power amplifier for radiated immunity testing, driving TEM Cells
Specification:
Input / Output: 50 Ohm, N female
Supply Voltage range: 110 V…240 V
Supply power consumption: 108 W @ 220V
Operating temperature range: -20°C to 50°C
Frequency range: 100 kHz – 250 MHz
Small signal gain: 47 dB typ.
Gain flatness 100 kHz – 250 MHz / Pin = -3 dBm: 3.5 dB typ.
Saturated output power @ 100 kHz / Pin = 0 dBm: 44.1 dBm (25.7 W) typ.
Saturated output power @ 150 kHz / Pin = 0 dBm: 44.6 dBm (28.8 W) typ.
Saturated output power @ 500 kHz / Pin = 0 dBm: 45.1 dBm (32.4 W) typ.
Saturated output power @ 1 MHz / Pin = 0 dBm: 45.3 dBm (33.9 W) typ.
Saturated output power @ 10 MHz / Pin = 0 dBm: 45.3 dBm (33.9 W) typ.
Saturated output power @ 50 MHz / Pin = 0 dBm: 45.6 dBm (36.3 W) typ.
Saturated output power @ 80 MHz / Pin = 0 dBm: 46.6 dBm (45.7 W) typ.
Saturated output power @ 100 MHz / Pin = 0 dBm: 46.5 dBm (44.7 W) typ.
Saturated output power @ 150 MHz / Pin = 0 dBm: 44.5 dBm (28.2 W) typ.
Saturated output power @ 200 MHz / Pin = 0 dBm: 43.8 dBm (24 W) typ.
Saturated output power @ 230 MHz / Pin = 0 dBm: 44.9 dBm (30.9 W) typ.
Saturated output power @ 250 MHz / Pin = 0 dBm: 44.8 dBm (30.2 W) typ.
1dB output compression point @ 100 kHz: +43.7 dBm typ. (Pin: -5 dBm)
1dB output compression point @ 150 kHz: +44.1 dBm typ. (Pin: -4 dBm)
1dB output compression point @ 500 kHz: +44.6 dBm typ. (Pin: -3 dBm)
1dB output compression point @ 1 MHz: +45 dBm typ. (Pin: -3 dBm)
1dB output compression point @ 10 MHz: +45 dBm typ. (Pin: -2 dBm)
1dB output compression point @ 50 MHz: +45.6 dBm typ. (Pin: 1 dBm)
1dB output compression point @ 80 MHz: +46.5 dBm typ. (Pin: 1 dBm)
1dB output compression point @ 100 MHz: +46.5 dBm typ. (Pin: 0 dBm)
1dB output compression point @ 150 MHz: +42.9 dBm typ. (Pin: -4 dBm)
1dB output compression point @ 200 MHz: +42.2 dBm typ. (Pin: -4 dBm)
1dB output compression point @ 230 MHz: +44.1 dBm typ. (Pin: -3 dBm)
1dB output compression point @ 250 MHz: +43 dBm typ. (Pin: -4 dBm)
2nd harmonic, 100 MHz, Pout=46dBm: < – 12 dBc typ.
2nd harmonic, 100 MHz, Pout=40dBm: < – 15 dBc typ.
3rd harmonic, 100 MHz, Pout=46dBm: < – 22 dBc typ.
3rd harmonic, 100 MHz, Pout=40dBm: < – 22 dBc typ.
TOTAL HARMONIC DISTORTION
17.7% @100MHz, Pout=37dBm typ.
19.6% @100 MHz, Pout=40 dBm typ.
22.1% @100 MHz, Pout=43 dBm typ.
26.9% @100 MHz, Pout=46 dBm typ.
Third order output intercept point: +51 dBm, @100 MHz, ∆ f = 2MHz, typ.
Internal modulation frequency AM: 1 kHz ±20%
Internal modulation frequencies PM: 1 kHz ±20%, 217 Hz ±20%
Duty cycle, PM: 50% ±10% @ 1 kHz; 12.5% ±20% @ 217 Hz
MAXIMUM RATINGS
Maximum input power: +3 dBm
The output of the TBMDA-CDN25 is quite tolerant to output mismatch, however open or shorted load is not recommended, as it potentially can cause damage to the output transistor. When driving near field probes, current probes or any load of unknown impedance, it is highly recommended to insert a ≥ 3dB attenuator at the output of the amplifier in order to protect the output stage.
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