发明授权
US08542039B2 High-speed pre-driver and voltage level converter with built-in de-emphasis for HDMI transmit applications
有权
高速预驱动器和电压电平转换器,内置去加重HDMI传输应用
- 专利标题: High-speed pre-driver and voltage level converter with built-in de-emphasis for HDMI transmit applications
- 专利标题(中): 高速预驱动器和电压电平转换器,内置去加重HDMI传输应用
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申请号: US13294273申请日: 2011-11-11
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公开(公告)号: US08542039B2公开(公告)日: 2013-09-24
- 发明人: Miao Li , Zhi Zhu , Xiaohua Kong , Nam V. Dang
- 申请人: Miao Li , Zhi Zhu , Xiaohua Kong , Nam V. Dang
- 申请人地址: US CA San Diego
- 专利权人: QUALCOMM Incorporated
- 当前专利权人: QUALCOMM Incorporated
- 当前专利权人地址: US CA San Diego
- 代理商 Sam Talpalatsky; Nicholas J. Pauley; Joseph Agusta
- 主分类号: H03B1/00
- IPC分类号: H03B1/00 ; H03K3/00
摘要:
In an example, a high-speed pre-driver and voltage level converter with built-in de-emphasis for HDMI transmit applications is provided. An exemplary integrated circuit includes a serializer, a pre-driver coupled to receive a differential input from the serializer, and a driver. The pre-driver includes all-p-type metal-oxide-silicon (PMOS) cross-coupled level converter comprising four PMOS transistors and two de-emphasis PMOS transistors forming a de-emphasis tap coupled to the output of the cross-coupled level converter. The driver is coupled to the pre-driver output and is configured to receive a differential input from the pre-driver.