joe2moon
Full Member level 5

fpga spread spectrum
2 question(s) about FPGA technology:
First,
how to implement the spread-spectrum PLL on FPGA ?
/*--- Spread-spectrum clocking schemes
spread the fundamental clock frequency energy
to minimize energy peaks at specific frequencies. ---*/
Second,
how to implement the clock switchover circuity on FPGA ?
/*-- Clock switchover feature can also be used for
switching between clock inputs of different frequencies. ---*/
-------------------------------------------------------------
BTW, can we apply technologies mentioned above to ASIC design ?
ref:
h**p://www.altera.c0m/products/devices/stratix/features/stx-pll_features.html#clock-switchover
2 question(s) about FPGA technology:
First,
how to implement the spread-spectrum PLL on FPGA ?
/*--- Spread-spectrum clocking schemes
spread the fundamental clock frequency energy
to minimize energy peaks at specific frequencies. ---*/
Second,
how to implement the clock switchover circuity on FPGA ?
/*-- Clock switchover feature can also be used for
switching between clock inputs of different frequencies. ---*/
-------------------------------------------------------------
BTW, can we apply technologies mentioned above to ASIC design ?
ref:
h**p://www.altera.c0m/products/devices/stratix/features/stx-pll_features.html#clock-switchover