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US08723612B2 Trimming circuit for clock source 有权
时钟源微调电路

Trimming circuit for clock source
摘要:
A semiconductor trimming circuit includes parallel coupled PMOS devices coupled in parallel with parallel coupled NMOS devices and an additional pair of dummy NMOS devices. The dummy NMOS devices are coupled in parallel with the NMOS devices. A trimming circuit for an internal clock source may be formed with an array of such switches for selecting one or more trimming capacitors of the trimming circuit. Such an array has a low leakage current and permits good trimming linearity.
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