发明名称 |
High speed, out-of-band differential pin driver |
摘要 |
A driver block for a differential pin driver that supports out-of-band signaling. The driver block includes a main enable switch that is controlled by a high speed driver inhibit (DINH) signal. The main enable switch controls coupling between a main current source and a differential pin driver output stage. The main enable switch is coupled in series with an output select switch that selects between a positive output and a negative output. The driver block also includes a positive enable switch for controlling coupling between the positive output and a positive level shifter that shifts voltages of the positive output. The driver block also includes a negative enable switch for controlling coupling between the negative output and a negative level shifter that shifts voltages of the negative output.
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申请公布号 |
US7372302(B1) |
申请公布日期 |
2008.05.13 |
申请号 |
US20060477971 |
申请日期 |
2006.06.28 |
申请人 |
CREDENCE SYSTEMS CORPORATION |
发明人 |
OHSHIMA ATSUSHI;NOMURA TOSHIHIRO;MAASSEN HOWARD |
分类号 |
H03K19/0175 |
主分类号 |
H03K19/0175 |
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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