U2042XA Datasheet, PDF (4/25 Pages) Keysight Technologies – U2040 X-Series Wide Dynamic Range Power Sensors

04 | Keysight | U2040 X-Series Wide Dynamic Range Power Sensors – Data Sheet
Time selectivity in average mode with variable aperture duration
The U2040 X-series offers a new feature called average mode time selectivity, whereby
users are able to configure the aperture duration of measurement capture with reference
to immediate trigger or external trigger. The aperture duration can be set from 20 µs to
200 ms with a resolution of 100 ns, a resolution low enough to cover any radio format.
This new feature allows users to control which portions of the waveform to be measured,
giving the same results as time-gated power measurements made in the conventional
normal/peak mode. The key benefits of this feature is that it enables the sensor to
measure both average and time selectivity average power measurements across the
full 96 dB dynamic range, and offers real time measurements of up to 50,000 readings
per second. This is a significant improvement when compared to conventional power
sensors; a conventional sensor’s time gated power dynamic ranges is typically clipped
at around 50 dB with maximum speed of 1000 readings per second.
Internal zero and calibration
Save time and reduce measurement uncertainty with the internal zero and calibration
function. Each U2040 X-Series sensor comes with technology that integrates a DC
reference source and switching circuits into the body of the sensor so you can calibrate
the sensor while it is connected to a device-under-test. This feature removes the need
for connection and disconnection from an external calibration source, speeding up
testing and reducing connector wear and tear.
This internal zero and calibration function allows continuous long distance and remote
measurements by maintaining the accuracy of the sensor, and is useful in manufacturing
and automated test environments where each second and each connection counts.
Built-in trigger in and out
An external trigger enables accurate triggering of low level signals close to the sensor’s
noise floor. The U2040 X-series power sensors come with built-in trigger in/out connection,
allowing you to connect an external trigger signal from a signal source or the device-
under-test in order to achieve precise triggering timing. Once the trigger output is
enabled, a TTL trigger output signal will be generated on every triggered measurement.
The built-in trigger in and out is particularly useful when users need to synchronize the
measurement acquisition of a series of daisy-chain power sensors.
Figure 2. The external trigger input and output ports on the U2044XA