发明名称 |
Switched capacitor digital-analog converter with a decreased harmonic distortion |
摘要 |
In a D/A converter employed in audio systems and various communicating equipment, particularly for using a digital 1-bit data stream as an input and an analog signal as an output, a switched capacitor digital-analog converter having a decreased harmonic distortion utilizes a charge subtraction method in a low-pass filter instead of employing a bypass filter to prevent an operational amplifier from deviating from a linear range due to a switching noise. The bypass capacitor heretofore used in the D/A converter is not employed to shrink the chip designing area.
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申请公布号 |
US5892473(A) |
申请公布日期 |
1999.04.06 |
申请号 |
US19970872934 |
申请日期 |
1997.06.11 |
申请人 |
HYUNDAI ELECTRONICS INDUSTRIES CO., LTD. |
发明人 |
SHIN, YUN TAE |
分类号 |
H03M1/66;H03H19/00;H03M1/68;H03M3/02;(IPC1-7):H03M1/66 |
主分类号 |
H03M1/66 |
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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