TBMDA1 Modulated Wideband Driver Amplifier
The TBMDA1 modulated wideband driver amplifier was developed to create a cost-effective signal source for interference immunity testing of electronic assemblies and products. It is designed to be controlled by the tracking generator output of spectrum analyzers. With its 22dB gain and a 1dB compression point of +22dBm, it can increase the output power of a tracking generator up to 150mW. The TBMDA1 is ideal for controlling Tekbox near-field probes, to find the sensitive point of an electronic circuit or to generate electric fields up to 50V/m when controlling the Tekbox TEM Cell TBTC1, 25V/m when controlling the TBTC2 or 18V/ m when controlling the TBTC3. The test signals for the immunity test can be CW, AM or PM. Therefore, the TBMDA1 offers a built-in modulation function to generate 1kHz AM or PM signals. In PM mode, the TBMDA1 can also generate a 217Hz signal with 12.5% duty cycle to simulate mobile phone TDMA noise.
FEATURESECW amplifier (modulation off) 1 kHz, 80% AM modulation 1 kHz, 50% duty cycle pulse modulation 217 Hz, 12.5% duty cycle pulse modulation
SPECIFICATIONS
Input: 50 ohm, SMA female
Output: 50 ohm, SMA female
Nominal supply voltage : 5V, typ. 235mA, Mini-USB-B connection
Maximum supply voltage: 5.5V
Maximum input power: +9dBm
1dB output compression point @ 40MHz: +21.5dBm
1dB output compression point @ 2 GHz: +22.5dBm
Output intercept point 3rd order at 40 MHz: + 39dBm
Intercept point of the 3rd order output at 2 GHz: +42dBm
Reverse isolation S12: -45dB
Noise figure: 3 ... 4 dB
Internal modulation frequency AM: 1 kHz ±10%
Internal modulation frequencies PM: 1 kHz ±10%, 217 Hz ± 20%
duty cycle, PM: 50% ±10% at 1 kHZ 12.5% ±20% at 217 Hz
Gain 25 MHz 50 MHz 100 MHz 500 MHz 1 GHz 1.5 GHz 2 GHz 2.5 GHz 3 GHz 21.6 dB 24.9 dB 25.5 dB 25.6 dB 24.9 dB 24.1 dB 22.2 dB 22.8 dB 25.8 dB APPLICATION
Amplification block for general purposes
Signal source for interference immunity tests, control of near-field probes
Signal source for interference immunity tests, control of TEM cells