发明名称 |
Sample rate converters with minimal conversion error and analog to digital and digital to analog converters using the same |
摘要 |
A sample rate converter for converting a data stream having a first base sampling frequency to a data stream having a second base sampling frequency. Up-sampling circuitry receives first oversampled data having a first oversampling ratio with respects to the first base frequency and outputs second oversampled data having a second oversampling ratio with respects to the first base sampling frequency. Resampling circuitry resamples the second oversampled data by a resampling frequency ratio of integers representing a ratio of the first and second base frequencies and generates third oversampled data having the second oversampling ratio with respects to the second base frequency. Down-sampling circuitry then down-samples the third oversampled data and generates fourth oversampled data having the first oversampling ratio with respects to the second base frequency.
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申请公布号 |
US6542094(B1) |
申请公布日期 |
2003.04.01 |
申请号 |
US20020090331 |
申请日期 |
2002.03.04 |
申请人 |
CIRRUS LOGIC, INC. |
发明人 |
VENKITACHALAM ANAD;DATAR RAJENDRA;SUBRAMONIAM KRISHNAN |
分类号 |
H03H17/06;(IPC1-7):H03M7/00 |
主分类号 |
H03H17/06 |
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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