This scheme utilizes all effective bits of phase accumulatoraddress, and so can improve the performances of DDS, which has -70 dB of spur suppression value.
该方案利用了相位累加器的所有有效位,使DDS的性能得到提高,杂散度抑制比达到了- 70 d B。
2
JPN Branch to the address specified by the operand if the contents of the accumulator are negative.