发明名称 |
Method and apparatus for a high-drive current digital-to-analog converter |
摘要 |
The invention is a method and apparatus for a digital DSL line driver that comprise a multi stage delta-sigma modulator with a high current 1-bit digital-to-analog converter (DAC) output stage. By adding the high current drive capability to the 1-bit DAC in a delta-sigma digital-to-analog converter the traditional DSL line driver used in digital subscriber lines applications is made less complex and it saves on the overall power consumption. The invention uses a transistor switch arrangement to save the overall power by alternately switching "ON" some the transistors while having other transistor turned "OFF".
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申请公布号 |
US2003128144(A1) |
申请公布日期 |
2003.07.10 |
申请号 |
US20030336922 |
申请日期 |
2003.01.06 |
申请人 |
KEASLER WILLIAM EDWARD |
发明人 |
KEASLER WILLIAM EDWARD |
分类号 |
H03F3/217;H03M3/02;(IPC1-7):H03M1/66 |
主分类号 |
H03F3/217 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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