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https://designers-guide.org/forum/YaBB.pl Design >> RF Design >> parallel QVCO issue https://designers-guide.org/forum/YaBB.pl?num=1288174716 Message started by ieok on Oct 27th, 2010, 3:18am |
Title: parallel QVCO issue Post by ieok on Oct 27th, 2010, 3:18am How to make sure QVCO output has accurate in-phase & quadrature phase clock? I use the parallel type QVCO (identical osc). In my testbench A, the qvco works properly but when move to testbench B, it did not wok properly like: no longer 90o shift, different swing amplitude. It looks like it depends on initial voltage of the oscillator. thank you in advance. |
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