发明名称 |
Capacitive isolation circuitry with improved common mode detector |
摘要 |
An integrated circuit having voltage isolation capabilities comprising a first galvanically isolated area of the integrated circuit containing a first group of functional circuitry for processing a data stream. The first group of functional circuitry located in a substrate of the integrated circuit. Capacitive isolation circuitry located in conductive layers of the integrated circuit provides a high voltage isolation link between the first group of functional circuitry and a second group of functional circuitry connected to the integrated circuit through the capacitive isolation circuitry. The capacitive isolation circuitry includes a differential transmitter for transmitting data in a differential signal to the second group of functional circuitry via the capacitive isolation circuitry. A differential receiver receives data within the differential signal from the second group of functional circuitry via the capacitive isolation circuitry. A detector circuit within the differential receiver detects the received data. The detector circuit monitors the differential signal and generates a first logical output when a voltage generated responsive to the differential signal exceeds a programmable voltage threshold level and generates a second logical output when the voltage generated responsive to the differential signal falls below the programmable voltage threshold level.
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申请公布号 |
US7902627(B2) |
申请公布日期 |
2011.03.08 |
申请号 |
US20090414387 |
申请日期 |
2009.03.30 |
申请人 |
SILICON LABORATORIES INC. |
发明人 |
DONG ZHIWEI;YAN SHOULI;THOMSEN AXEL;TANG WILLIAM W. K.;LEUNG KA Y. |
分类号 |
H01L25/00 |
主分类号 |
H01L25/00 |
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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