CDCE813-Q1: vs CDCE913

Hi Connor,

Fundamentally the CDCE813-Q1 and CDCE913 device families are similar and both have the same overall block diagram and similar features. Here are the differences:

• CDCE913 has lower maximum rating for cycle to cycle jitter, peak-to-peak jitter, and output skew but the typical values are the same. With this in mind, the CDCE913EVM may outperform the CDCE813-Q1 which may not give the customer an apples to apples comparison when validating their design with the CDCE913EVM.
• The 813 is by default configured to use a LVCMOS input and run it through the PLL, while the 913 is by default configured to use a crystal input and bypass the PLL. If the customer intends to program their devices' EEPROM through I2C, then this would not be a problem. They both have the same overall block diagram and similar features
• The 813 has a min VCO frequency of 70-MHz while the 913 has a minimum VCO frequency of 80-MHz. So if they are trying to operate the 813 between 70-80 MHz VCO frequency, then the 913EVM would also not correctly display the capabilities of the 813.
• I want to note that the "-Q1" suffix indicates automotive qualification, so the CDC813-Q1 has an expanded temperature range compared to the basic CDCE913. But there is also an automotive qualified version of the 913 in the form of the CDCE913-Q1.
• The 813 has a minimum VCO frequency of 70-MHz while the 913 has a minimum VCO frequency of 80-MHz. So if they are trying to operate the 813 between 70-80 MHz VCO frequency, then the 913 would also not correctly display the capabilities of the 813.

Do note that the electrical characteristics values are the same between parts when comparing the CDCE813-Q1 and the CDCE913-Q1. Rating these parts at higher temperatures to be automotive compliant naturally leads to this increase in jitter.

Thanks,

Evan Su