Invention Grant
US08143912B2 Impedance adjustment circuit for adjusting terminal resistance and related method
有权
用于调整端子电阻的阻抗调节电路及相关方法
- Patent Title: Impedance adjustment circuit for adjusting terminal resistance and related method
- Patent Title (中): 用于调整端子电阻的阻抗调节电路及相关方法
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Application No.: US12577211Application Date: 2009-10-12
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Publication No.: US08143912B2Publication Date: 2012-03-27
- Inventor: Chiao-Wei Hsiao , Sih-Ting Wang , Tung-Cheng Hsin
- Applicant: Chiao-Wei Hsiao , Sih-Ting Wang , Tung-Cheng Hsin
- Applicant Address: TW Hsinchu Science Park, Hsin-Chu
- Assignee: NOVATEK Microelectronics Corp.
- Current Assignee: NOVATEK Microelectronics Corp.
- Current Assignee Address: TW Hsinchu Science Park, Hsin-Chu
- Agent Winston Hsu; Scott Margo
- Priority: TW98124409A 20090720
- Main IPC: H03K17/16
- IPC: H03K17/16
Abstract:
An impedance adjustment circuit for adjusting a terminal resistance includes a resistance evaluation unit and a terminal resistor unit. The resistance evaluation unit is utilized for evaluating a ratio of an off-chip resistor and a basic resistor to generate a control signal by a successive approximation method. The terminal resistor unit is coupled to the resistance evaluation unit, and is utilized for deciding a number of shunt basic resistors to provide a matched terminal resistance according to the control signal.
Public/Granted literature
- US20110012689A1 Impedance Adjustment Circuit for Adjusting Terminal Resistance and Related Method Public/Granted day:2011-01-20
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