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[OMAP-L138] RTC crystal requirements

Expert 1070 points
Other Parts Discussed in Thread: OMAP-L137, AM1808

Hi TI,

There's no requirements for RTC crystal in the L138 documentation currently available.

OMAP-L137 datasheet says: "A crystal with 70k-ohm max ESR is recommended. Typical load capacitance values are 10-20 pF".  Are these recommendations applicable to L138/C6748/AM1808 too?

What is the maximum drive level value that a crystal should tolerate? Can I use a crystal with, e.g., 0.1μW (0.5μW max.) drive level and ESR of 80kΩ max. specified?

BR,
   Denis