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2003-12-21 by capiman@t-online.de
Hello,
i want to feed in an external clock into X1.
I found in an data sheet that maximum voltage is VDD 1.8 for input pin X1.
Is this correct also for an external oscillator ?
Has someone experience on this ?
Greetings,
Martin2003-12-21 by Leon Heller
----- Original Message -----
From: <capiman@...> To: <lpc2100@yahoogroups.com> Sent: Sunday, December 21, 2003 7:25 PM Subject: [lpc2100] Maximum voltage of X1 is VDD 1.8 ? > Hello, > > i want to feed in an external clock into X1. > I found in an data sheet that maximum voltage is VDD 1.8 for input pin X1. > Is this correct also for an external oscillator ? > Has someone experience on this ? This is mentioned in the User Manual on page 39 - use a 100 pF coupling capacitor with an oscillator signal of at least 200 mV RMS. Leon -- Leon Heller, G1HSM Email: aqzf13@... My low-cost Philips LPC210x ARM development system: http://www.geocities.com/leon_heller/lpc2104.html