Since the output frequency is an integer multiple of the input frequency, it is impossible to decouple the ties among these parameters and the performances of the synthesizer are thus limited.

• 由于整数型合成器的输出频率一定是输入频率的整数倍，因此这些参数之间的关系是无法改变的，也因此频率合成器的特性便会受到许多的限制。