In the second design, we use an adaptive biasing circuit to compensate for process and temperature deviation.Even in the worst case, the frequency variation is under 5%.

• 在第二个设计中，我们使用一个适应性偏压电路去补偿制程跟温度造成的频率漂移，即使在最差的条件下，频率漂移还是可以维持在5%25以内。