发明名称 Slew-rate control and waveshape adjusted drivers for improving signal integrity on multi-loads transmission line interconnects
摘要 A driver integrated circuit (IC) device. The driver device can include a front-end module, a pre-driver module, and a driver module coupled to a transmission line path. The pre-driver module can be coupled to the front-end module and can include one or more delay adjust capacitor modules, and one or more pull-down control modules. The driver module can be coupled to the pre-driver module, the driver module including one or more pull-down control logic modules. This driver device can configured in several implementations to provide control and programmability of a driver slew rate to maximize a signal integrity eye opening.
申请公布号 US9548726(B1) 申请公布日期 2017.01.17
申请号 US201514622550 申请日期 2015.02.13
申请人 INPHI CORPORATION 发明人 Iorga Cosmin;Yen Jeffrey C.
分类号 H03K3/012;H03K17/56;H03K17/16 主分类号 H03K3/012
代理机构 Ogawa P.C. 代理人 Ogawa Richard T.;Ogawa P.C.
主权项 1. A driver integrated circuit device, the device comprising: a front-end module; a pre-driver module coupled to the front-end module, the pre-driver module including one or more delay adjust capacitor modules, one or more pull-up control modules, and one or more pull-down control modules; wherein each of the delay adjust capacitor modules includes a skew mos module, a skew resistor module, and a cap array module; wherein the skew mos module includes a first transistor pair, a second transistor pair, and a third transistor pair configured to a mos input node, a mos output node, a cap node, a pull-up connection node, and a pull-down connection node; wherein the skew resistor module includes a plurality of resistors coupled in a series connection and having a plurality of resistor connection nodes at each junction between the resistors and the ends of the series connection; wherein the plurality of resistor connection nodes includes a cap node, a pull-up connection node, and a pull-down connection node; a driver module coupled to the pre-driver module, the driver module including one or more pull-up control logic modules and one or more pull-down control logic modules; and a transmission line path coupled to the driver module.
地址 Santa Clara CA US