Invention Grant
- Patent Title: Apparatus to implement symmetric single-ended termination in differential voltage-mode drivers
- Patent Title (中): 在差分电压模式驱动器中实现对称单端端接的装置
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Application No.: US13248485Application Date: 2011-09-29
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Publication No.: US08760189B2Publication Date: 2014-06-24
- Inventor: Cheng Zhong , Vannam Dang , Miao Li , Fares K. Maarouf , Tirdad Sowlati
- Applicant: Cheng Zhong , Vannam Dang , Miao Li , Fares K. Maarouf , Tirdad Sowlati
- Applicant Address: US CA San Diego
- Assignee: QUALCOMM Incorporated
- Current Assignee: QUALCOMM Incorporated
- Current Assignee Address: US CA San Diego
- Agent Sam Talpalatsky; Nicholas J. Pauley; Joseph Agusta
- Main IPC: H03K17/16
- IPC: H03K17/16
Abstract:
A differential voltage mode driver for implementing symmetric single ended termination includes an output driver circuitry having a predefined termination impedance. The differential voltage mode driver also includes an output driver replica having independently controlled first and second portions. The first and second portions are independently controlled to establish a substantially equal on-resistance of the first and the second portions. The output driver replica controls the predefined termination impedance of the output driver circuitry.
Public/Granted literature
- US20130082744A1 Apparatus to Implement Symmetric Single-Ended Termination in Differential Voltage-Mode Drivers Public/Granted day:2013-04-04
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