USB-5681 Block Diagram

The following figure illustrates the block diagram of the USB-5681. A built-in 10 dB attenuator provides excellent standing wave ratio (SWR) performance, which minimizes mismatch error. The signal is then split into two detector paths before progressing to the preamplifier, the lowpass filter, and the analog-to-digital converter (ADC). The sensor has built-in external trigger (in addition to a software-based internal trigger) circuitry with an MCX connector interface to receive an external trigger for reliable analysis of complex timing configurations. The presence of a microcontroller along with signal conditioning circuitry, ADC, and power supply in the sensor makes it a complete miniature RF power sensor.