Definition Of Modulation Rate And Frequency In The Sscg Specification - Renesas RZ/A Series User Manual

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RZ/A1L Group, RZ/A1LU Group, RZ/A1LC Group

Definition of Modulation Rate and Frequency in the SSCG Specification

The SSCG circuit can be used to decrease the peak value of electromagnetic interference noise by frequency modulation,

i.e. by slightly modulating the output frequency. In this case, the rate of change in the frequency and the size of the

change to the input clock frequency are defined as the modulation rate and modulation frequency, respectively. Figure

6.4 shows the modulation rate and modulation frequency.

Center frequency (f0)

f0 - 3.3% (clock mode 0),

f0 - 3.1% (clock mode 1)

Definition of SSCG Modulation Rate and Frequency

R01UH0437EJ0600 Rev.6.00

Jan 29, 2021

1/modulation frequency

6. Clock Pulse Generator

Output signal

Modulation rate

Rz/a1 series Rz/a1lu series Rz/a1lc series