Sep 19, 2012
10:03 AM
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Sep 19, 2012
10:03 AM
Hello, I changed the crystal(19.2MHz) to oscillator. The voltage amplitude of the clock signal(clkin) on my board is 0.8V(19.2MHz)and the board is not working now. My question is that what should the voltage level of the clock be. 0.8V is too low or sufficient?
Thank you
Lehua Chen
3 Replies
Sep 19, 2012
12:04 PM
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Sep 19, 2012
12:04 PM
I check it by applying external clock to the Clkin pin on the FX3 evaluation board. The amplitude of the clock (19.2MHz) should be larger than 1.8V. Otherwise, the chip will not work. Thanks
Lehua Chen
Anonymous
Not applicable
Sep 19, 2012
03:59 PM
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Sep 19, 2012
03:59 PM
many times mine is 0.5-1.5V or less than 2v ,but it is work normal
Anonymous
Not applicable
Sep 24, 2012
07:18 AM
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Sep 24, 2012
07:18 AM
I am seeing around 0.8V on my working board.
Thanks,
sai krishna.