| A 2.4-GHz fractional-N PLL with a PFD/CP linearization and an improved CP circuit Recent countries visiting this post |  |
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| A 2.4-GHz fractional-N PLL with a PFD/CP linearization and an improved CP circuit Recent countries visiting this post | |
| 14 | United States |
| 1 | Philippines |
| 1 | Israel |