发明名称 High-performance charge-pump circuit for phase-locked loops
摘要 One of the high-performance charge-pump circuits basically includes two switch mirror circuits, two current sources, two switches, and an inverter. In the switch mirror, the switch coupled to the diode-connected reference transistor is indirectly mirrored to the output. The great advantage is to utilize the switch mirrors as a part of building cascodes at the output. Consequently, all high-performance charge-pump circuits suppress any charge-injection errors, reduce charge-pump offset, increase the output impedance for effective current injection, and reduce chare-sharing problem.
申请公布号 US2006226917(A1) 申请公布日期 2006.10.12
申请号 US20050104112 申请日期 2005.04.11
申请人 PARK SANGBEOM 发明人 PARK SANGBEOM
分类号 H03L7/00 主分类号 H03L7/00
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