AFE79XX has four TX channels, configurable to independently operate in different frequency bands across their supported output frequencies that is, 600MHz to 12 GHz for AFE7950 and from 5MHz to 7.4GHz for AFE7900. RF sampling architecture employing digital mixers or NCOs provides high configurability. Multi-band jamming can be enabled using a single device by configuring all four Tx channels to sweep frequencies with independent band and bandwidth.

Each transmitter chain has 16 NCO running in parallel whose frequencies can be continuously updated by the device in chirp generator mode in the steps defined by user. In the chirp mode, the device is configured to give constant input to the mixer. This DC signal is up converted by the digital mixer as per the NCO value which is them transmitted from the TX chain through the DAC output.

The dwell time that is, time spent at one of the step frequencies achieved by the device is around 750ns (Minimum Dwell Time).