发明名称 |
METHOD AND APPARATUS FOR MISMATCH SHAPING OF AN OVERSAMPLED CONVERTER |
摘要 |
<p>Methods and apparatuses for spectrally shaping mismatch errors in a multi-bit digital to analog converter (DAC). In an embodiment, the multi-bit DAC is constructed from K separate multi-element sub-DACs, where K and the number of elements in each sub-DAC are each preferably greater than two. A received digital input code is split into a set of K sub-codes corresponding to the digital input code. The set of K sub-codes can have one of at least N different sub-code orders that specify an order of each of the K sub-codes with respect to one another, where N>2. A sum of the K sub-codes equals the digital input code. One of the at least N different sub-code orders is selected using a shuffling algorithm. Then, each sub-code in the set of K sub-codes is output in accordance with the selected sub-code order.</p> |
申请公布号 |
EP1374406(B1) |
申请公布日期 |
2006.03.08 |
申请号 |
EP20010972983 |
申请日期 |
2001.09.12 |
申请人 |
BROADCOM CORPORATION |
发明人 |
BROOKS, TODD, LEE;HO, DAVID, SENG, POH;MILLER, KEVIN, L.;FOGLEMAN, ERIC |
分类号 |
H03M1/06;H03M1/74 |
主分类号 |
H03M1/06 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|