ADC 6021 Spécifications télécharger pdf (Page 95)

MYXPM6021*

Revision 1.1 - 10/21/14

*Advanced information. Subject to change without notice.

MYXPM6021*

Form #: CSI-D-685 Document 011

19 Pulse Width Modulation Generation

19.1 Overview

ThePWMblockisusedtogenerateuptothreePWMsignalsonthreededicatedoutputpins.Mainlytheyareusedtodrive

displaybacklightcircuits.AllthePWMoutputscanbeenabledondemand.

19.2 Functional Description

EachofthePWMoutputsareabletogenerateoutputfrequenciesfrom~23.44KHzdownto~183Hzin128steps.

• f=(6MHz/256)/(FREQ+1)

Thedutycyclecanbeselectedbetween1/256to256/256(alwayshigh).

19.3 PWM output signals

Thereare3PWMoutputsignals(PWM[2:0])onMYXPM6021.

Table 58: PWM Output Signals

Name I/O Voltage Level Pin Mode Pin Level Internal pu/pd

PWM[2:0] O 1.8V CMOS Low No

1 2 ... 90 91 92 93 94 95 96 97 98 99 100 ... 112 113

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ADC 6021 Spécifications Page 95