ic_engr
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Sorry,
I may have been misunderstood. I am referring to two topologies for crystal oscillator. Not RC vs. Pierce.
Using the crystal at 32kHz, which topoloogy is advantageous for power consumption and start-up time:
1. Pierce oscillator with crystal 2. Differential Relaxation oscillator with onchip C it has cross coupled NMOS with current sources and the crystal is connected across it.
ic_engr
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