STA321 View Datasheet(PDF) - STMicroelectronics
Part Name
Description
MFG CO.
'STA321' PDF : 157 Pages View PDF
STA321
FFX
7.3
PWM shift feature
In new phase shift modulation it is possible to shift one output with respect to the other one.
This can reduce the noise generated by the simultaneous switching of two or more outputs.
The shift is performed through by programming bits PS_nA and PS_nB in registers
PWMOnCFG1-2 (where n is the number, 1 to 4, of the output) beginning on page 91.
Figure 32. New phase shift modulation with shift feature
dn
up
up’
without
shift
A
B
A-B
with
A
shift
B
A-B
Doc ID 15351 Rev 3
55/157
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