发明申请
US20110316634A1 HIGH SPEED LOW POWER MULTIPLE STANDARD AND SUPPLY OUTPUT DRIVER
有权
高速多功能多功能标准和电源输出驱动器
- 专利标题: HIGH SPEED LOW POWER MULTIPLE STANDARD AND SUPPLY OUTPUT DRIVER
- 专利标题(中): 高速多功能多功能标准和电源输出驱动器
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申请号: US12826645申请日: 2010-06-29
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公开(公告)号: US20110316634A1公开(公告)日: 2011-12-29
- 发明人: ANAND JITENDRA VASANI , JUN CAO , AFSHIN MOMTAZ
- 申请人: ANAND JITENDRA VASANI , JUN CAO , AFSHIN MOMTAZ
- 申请人地址: US CA IRVINE
- 专利权人: BROADCOM CORPORATION
- 当前专利权人: BROADCOM CORPORATION
- 当前专利权人地址: US CA IRVINE
- 主分类号: H03F3/04
- IPC分类号: H03F3/04
摘要:
A multi-mode driver and method therefore includes a plurality of amplifiers, an adjustable load block, and adjustable current supply circuitry that selectively adjusts current magnitudes supplied to at least one of the plurality of amplifiers. The multi-mode driver can operate in a KR mode with a higher voltage supply, an SR4 mode with the higher voltage supply, and an SFI mode with a lower voltage supply. To support these modes, the multi-mode driver selectively operates a plurality of amplifiers, adjusts current magnitudes supplied to the amplifiers, and selectively adjusts an adjustable load. Thus, the multi-mode driver is operable to selectively and efficiently produce high swing and low swing output signals and to efficiently operate with any one of a plurality of supplies. The driver includes selectable loads and parallel-coupled amplifier devices that are selected based on mode.