发明名称 |
CONFIGURING AND SELECTING A DUTY CYCLE FOR AN OUTPUT DRIVER |
摘要 |
The pre-driver of an output driver is calibrated so as to generate output signals having a specified duty cycle. During calibration, a closed loop is utilized to decrease the differences between the common mode voltage of the output signal and a reference voltage. Calibration data is be stored in registers so that the output driver can be readily configured for one of a plurality of signaling types, each having a respective duty cycle. Additionally, a process, voltage and temperature (PVT) detector can be utilized so that calibration of the pre-driver tracks with process, voltage and temperature variations of the integrated circuit in which the output driver resides. |
申请公布号 |
WO2005027346(A2) |
申请公布日期 |
2005.03.24 |
申请号 |
WO2004US21367 |
申请日期 |
2004.06.29 |
申请人 |
RAMBUS INC.;NGUYEN, HUY;LAU, BENEDICT;CHOU, CHUEN-HUEI |
发明人 |
NGUYEN, HUY;LAU, BENEDICT;CHOU, CHUEN-HUEI |
分类号 |
H03K3/017;H03K5/156;H04L25/02 |
主分类号 |
H03K3/017 |
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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