UCD3138064RGCR datasheet(54/91 Pages) TI1

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Start of Period

Period Counter

Start of Period

Period

Adaptive Sample Trigger B

Sample Trigger 1

DPWM Output A

Cycle Adjust A (High Resolution)

Filter Duty (High Resolution)

Event 1

Event 2 - Event 3 (High Resolution)

Event 4 (High Resolution)

DPWM Output B

Blanking A Begin

Blanking A End

Blanking B Begin

Blanking B End

Phase Trigger

Sample Trigger 2

To Other

Modules

To Other

Modules

Leading Edge Closed Loop

Events which change with DPWM mode:

DPWM A Falling Edge = Event 1

DPWM A Rising Edge = Event 1 - Filter Duty + Cycle Adjust A

Adaptive Sample Trigger A = Event 1 - Filter Duty + Adaptive Sample Register or

Adaptive Sample Trigger B = Event 1 - Filter Duty/2 + Adaptive Sample Register

DPWM B Rising Edge = Event 4

DPWM B Falling Edge = Event 1 - Filter Duty + Cycle Adjust A -(Event 2 – Event 3)

Phase Trigger = Phase Trigger Register value or Filter Duty

Events always set by their registers, regardless of mode:

Sample Trigger 1, Sample Trigger 2, Blanking A Begin , Blanking A End , Blanking B

Begin, Blanking B End

Adaptive Sample Trigger A

UCD3138064

SLUSB72B – MARCH 2013 – REVISED SEPTEMBER 2014

www.ti.com

Figure 6-27. Leading Edge Mode

As in the Normal mode, the two edges in the middle of the period are dynamic, so the fixed blanking

intervals are mainly useful for the edges at the beginning and end of the period.

Detailed Description

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