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From: | Marcus Müller |
Subject: | Re: [Discuss-gnuradio] [USRP-users] minimum PPS voltage for N200 |
Date: | Thu, 5 May 2016 15:50:13 +0200 |
User-agent: | Mozilla/5.0 (X11; Linux x86_64; rv:38.0) Gecko/20100101 Thunderbird/38.6.0 |
Hi Khalid, all PPS inputs are 50-Ohm-terminated; you can s And, as Marcus Leech said, 2.52V should probably be OK – If you go to the datasheet that he linked to, p.8, you'll see that for the used Vcc of 3.3V, the rising edge threshold voltage is less then 1.16V; which means that over the 1.2K/2K voltage divider (R590 / R592) a total voltage of a little less than 3/2 * 1.16V = 1.74V must exist. Your 2.52V is higher than that. You should be fine, though not by a huge amount. Best regards, Marcus On 05.05.2016 14:28, khalid.el-darymli
wrote:
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