CY22381 Frequency Ranges

Question: What are the minimum and maximum frequency ranges for the CY22381?

 

Answer:

The input frequency ranges are as follows:

CY22381FXC - Commercial - 8MHz -30MHz crystal, 1MHz -166MHz, driven.

CY22381FXI - Industrial - 8MHz -30MHz crystal, 1MHz -150MHz, driven.

The Output frequency ranges are as follows:

CY22381FXC - Commercial - 8KHz - 200MHz.

CY22381FXI - Industrial - 8KHz - 166MHz.

Note: 8KHz can only be obtained from the buffered 1MHz reference divided by 127 (Maximum output divider value).

The PLL Frequency Ranges are as follows:

CY22381FXC - Commercial - 100MHz - 400MHz.

CY22381FXI - Industrial - 125MHz - 375 MHz.

The frequency ranges are reduced at higher temperatures for guaranteed PLL stability. The PLLs do not reliably lock at higher temperatures for which reduce the margins.