Invention Grant
US09413385B2 Efficient decoder for current-steering digital-to-analog converter 有权
用于电流转向数模转换器的高效解码器

  • Patent Title: Efficient decoder for current-steering digital-to-analog converter
  • Patent Title (中): 用于电流转向数模转换器的高效解码器
  • Application No.: US14565172
    Application Date: 2014-12-09
  • Publication No.: US09413385B2
    Publication Date: 2016-08-09
  • Inventor: Jan Mulder
  • Applicant: Broadcom Corporation
  • Applicant Address: US CA Irvine
  • Assignee: Broadcom Corporation
  • Current Assignee: Broadcom Corporation
  • Current Assignee Address: US CA Irvine
  • Main IPC: H03M1/66
  • IPC: H03M1/66 H03M7/16
Efficient decoder for current-steering digital-to-analog converter
Abstract:
A decoder for a current-steering digital-to-analog converter (DAC) is described herein. In an embodiment, the decoder is a dynamic element matching (DEM) row/column decoder that randomizes pairs of row control signals and column control signals that are provided to a matrix of current cells. The randomization is performed in a manner that ensures that the pairs of row control signals are randomized as pairs. In another embodiment, the decoder is an N-dimensional decoder, where N is any integer greater than two. The N-dimensional decoder comprises an N number of decoders that are each configured to provide respective control signals that are provided to current source(s) in current cell(s) in a respective dimension of an N-dimensional matrix of current cells for enabling current source(s) included therein. Such decoders advantageously allow for a simpler, more efficient design compared to a non-segmented, unary DAC due to the smaller area and lower power consumed.
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