发明名称 |
OSCILLATION CIRCUIT, ELECTRONIC CIRCUIT, AND SEMICONDUCTOR DEVICE, CLOCK, AND ELECTRONIC APPARATUS WHICH COMPRISE THESE CIRCUITS |
摘要 |
<p>There is provided an oscillation circuit that enables oscillation at a stable frequency, unaffected by changes in the power-supply voltage of a main power source.</p><p>An electrostatic protection circuit 200 provided for an oscillation circuit 40 includes a first electrostatic protection circuit section 210 connected between a signal path and the constant voltage Vreg side, which bypasses an electrostatic voltage of a first polarity that intrudes into the signal path to the constant bypass voltage Vreg side through a diode 72, and a second electrostatic protection circuit section 220 connected between the signal path and the ground side, which bypasses an electrostatic voltage of a second polarity that intrudes into the signal path to the ground side through a diode 74.</p> |
申请公布号 |
EP1328060(A1) |
申请公布日期 |
2003.07.16 |
申请号 |
EP20010972510 |
申请日期 |
2001.09.26 |
申请人 |
SEIKO EPSON CORPORATION |
发明人 |
YABE, HIROSHI;NAKAMIYA, SHINJI;KADOWAKI, TADAO;MAKIUCHI, YOSHIKI |
分类号 |
G04F5/04;H03B5/04;H03B5/36;(IPC1-7):H03B5/36 |
主分类号 |
G04F5/04 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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