prescaler

例句：

1. 1.The prescaler is used to adjust the signal level before it is sent to the main amplifier.
   预缩器用于调整信号级别，在发送到主放大器之前。
2. 2. In audio engineering, the prescaler is crucial for maintaining consistent levels across different channels.
   在音频工程中，预缩器对于保持不同通道之间一致的水平至关重要。
3. 3. The prescaler in this circuit is designed to handle high frequencies and reduce distortion.
   这个电路中的预缩器被设计用来处理高频并减少失真。