发明名称 |
ELECTRONIC DEVICE WITH BODY-BIASING CIRCUIT FOR PORTABLE EQUIPMENT WITH USB CONNECTOR FOR HEADSET |
摘要 |
An electronic USB or similar device 101 with a CMOS audio output stage 105 for driving, in a first mode, e.g., a headset via a port commonly used also in a second mode by a digital data transmission stage 103 for digital data and supply, the audio output stage P-channel transistor MP being switchably back-gate biased by a bias circuit 107 according to the operating mode to achieve high-voltage tolerance. |
申请公布号 |
WO2013034595(A1) |
申请公布日期 |
2013.03.14 |
申请号 |
WO2012EP67320 |
申请日期 |
2012.09.05 |
申请人 |
ST-ERICSSON SA;NICOLLINI, GERMANO;ZAMPROGNO, MARCO |
发明人 |
NICOLLINI, GERMANO;ZAMPROGNO, MARCO |
分类号 |
H03K19/003;H03F1/52;H03F3/185;H03F3/30;H03K19/0185 |
主分类号 |
H03K19/003 |
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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