TekBox TBMDA3B, 4B, 5 Modulated Power Amplifiers
Benefits of the TBMDA Series Power Amplifiers up to 75, 400 MHz, or 1 GHz
- Modulated amplifiers for immunity testing/EMC pre-compliance.
- TBMDA5 generates test levels class 1 and class 2 according to ISO/EN 61000-4-6.
- 1 kHz, 80% AM and 50% duty cycle pulse modulation and more.
TekBox TBMDA3B, 4B, 5 Modulated Power Amplifiers
TekBox Models TBMDAB3, TBMDA4B, TBMDA5 Signal Sources/Amplifiers for Immunity Testing
The TekBox models TBMDA3B, TBMDA4B, TBMDA5 are signal sources/modulated power amplifiers for immunity testing. They are designed to be driven by the tracking generator output of spectrum analyzers. The devices are the ideal solution to drive TekBox near field probes in order to find the sensitive spot of an electronic circuit or to create electric fields when driving TekBox TEM cells.
The TBMDA5 provides the necessary power, bandwidth and modulation for conducted immunity testing using CDNs in the frequency range from 150 kHz to 400 MHz. With a 1 dB compression point of up to 2.5 W in the frequency range 150 kHz to 400 MHz it can generate test levels class 1 and class 2 according to ISO/EN 61000-4-6.
- CW amplifier (modulation off).
- 1 kHz, 80% AM modulation.
- 1 kHz, 50% duty cycle pulse modulation.
- 217 Hz, 12.5% duty cycle pulse modulation.
Model Overview
| Model | TBMDA3B1) | TBMDA4B1) | TBMDA5 |
| Input/output | 50 Ω, N female | ||
| Supply voltage range | 110...240 V | ||
| Frequency range | 10 MHz...1 GHz | 100 kHz...75 MHz | 150 kHz...400 MHz, usable from 100 kHz to 1.2 GHz; small signal gain: 38 dB typ. gain flatness 150 kHz...400 MHz/Pin = -5 dBm: 3.5 dB typ. |
| Additional specifications | ...such as saturated output power, 1-dB output compression point, total harmonic distortion at various frequencies, see full datasheets | ||
| Third order intercept point | 44 dBm at 100 MHz, ∆f = 2 MHz typ. | +53 dBm at 25 MHz, Δf = 200 kHz typ. | +43 dBm at 100 MHz, Δf = 2 MHz, typ. |
| Noise figure | 9 dB | At 35 MHz: 7.2 dB | At 100 MHz: 6.1 dB |
| Modulation | 1 kHz, 80% AM; 1 kHz, 50% duty cycle pulse modulation; 217 Hz, 12.5% duty cycle pulse modulation | AM - internal modulation frequency 1 kHz ±20%; PM - internal modulation frequency 1 kHz ±10%, 217 Hz ±20%; duty cycle, PM: 50% ±10% at 1 kHz; 12.5% ±20% at 217 Hz | AM - internal modulation frequency 1 kHz ±20%; PM - internal modulation frequency 1 kHz ±20%, 217 Hz ±20%; duty cycle, PM: 50% ±10% at 1 kHz; 12.5% ±20% at 217 Hz |
| Operating temperature range | -20...+50°C | ||
| Applications |
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1) Replacement for the EOL version TBMDA3 or TBMDA4.
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