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Electrical Specification for ECAP

Thomas S
Intellectual 600 points
Other Parts Discussed in Thread: OMAP-L138

Hi

Can not find any information about the type of input pin for ecap (TTL..,Schmitt trigger..)? What are the requirements (max rise time) for the ecap input signal?

Best regards

Thomas

  • 0
    Expert 1950 points

    Hello,

    See recommended operating conditions in data sheet. A generic I/O pin may use 1.8V or 3.3V LVTTL/LVCMOS, according to your hardware's DVDD.

    OMAP-L138 (sprs586d.pdf), for example, requires max rise time of 10 ns or one fourth of the signal's period, whichever is less (see 4.2). Specific eCAP timing is given in 5.28.

    Jakez