Most analog and RF system need to adjust signal amplitudes to get them in range or signal-processing block such and analog-to-digital converters, RF filters, and others. The PE43610 (9 kHz to 13 GHz) and PE43614 (9 kHz to 40 GHz) digital step attenuators (DSAs) let you attenuate signals in 0.5 dB and 1 dB steps up to 31.5 dB while maintaining monotonicity through its frequency range.
Each device is addressable through serial or parallel methods. In a parallel setting, you can use the 6-bit control interface to set the full range of attenuation and the attenuation steps. In serial mode, these settings are set using two control words on the bus.