Sundance FC108 v.1.1 - Manual (Page 8)

FC108 - Polyphase filterbank v1.1
Fast
Polyphase filterbank product manual
December 2005 www.sundance.com - 8 -
Start
Figure 3: Start
Once the filter taps have been loaded to the core, a start pulse generated by the user interface
will signify the start of the processing inside the core. The user parameters (NB_CH and
FFT_scaling) and the first data sample are registered inside the core on the same clock cycle as
the start pulse. Data samples must then be valid at the input of the core every subsequent clock
cycle.