发明名称 |
Controller area network transceiver having capacitive balancing circuit for improved receiver common-mode refection |
摘要 |
A controller area network transceiver and a transmission method for a controller area network provides improved symmetry between its differential output signal CANH and CANL such that capacitive imbalance is minimized. The transceiver disclosed herein includes a driver including a non-inverted output that couples to the first output terminal CANH and a inverted output that couples to the second output terminal CANL. A receiver comparator includes a non-inverted input coupled to the first output terminal CANH and a inverted input coupled to the second output terminal CANL. A first and second impedance matching circuit portions capacitively balance the first and second output terminals such that efficient common-mode rejection is enabled by setting the RC time constants formed by each impedance matching circuit and external resistances to be substantially equivalent. This transceiver provides a high performance, simple, and cost effective design which eliminates capacitive imbalance while decreasing required die area.
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申请公布号 |
US2004043739(A1) |
申请公布日期 |
2004.03.04 |
申请号 |
US20020229516 |
申请日期 |
2002.08.28 |
申请人 |
JORDANGER RICKY D.;ANTONSEN ANTON M. |
发明人 |
JORDANGER RICKY D.;ANTONSEN ANTON M. |
分类号 |
H04B3/30;(IPC1-7):H04B1/10 |
主分类号 |
H04B3/30 |
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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