发明授权
- 专利标题: Digital-analog converter and camera module having the same
- 专利标题(中): 数模转换器和具有相同功能的摄像模块
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申请号: US11997698申请日: 2007-08-14
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公开(公告)号: US07746258B2公开(公告)日: 2010-06-29
- 发明人: Cheong Yong Park
- 申请人: Cheong Yong Park
- 申请人地址: KR Seoul
- 专利权人: LG Innotek Co., Ltd.
- 当前专利权人: LG Innotek Co., Ltd.
- 当前专利权人地址: KR Seoul
- 代理机构: Saliwanchik, Lloyd & Saliwanchik
- 优先权: KR10-2006-0077234 20060816
- 国际申请: PCT/KR2007/003897 WO 20070814
- 国际公布: WO2008/020704 WO 20080221
- 主分类号: H03M1/66
- IPC分类号: H03M1/66
摘要:
Disclosed are a digital-analog converter and a camera module having the same. The digital-analog converter includes a plurality of decoders for receiving bits of a digital input signal by dividing the bits in a predetermined bit unit except for lower bits of the digital input signal, and decoding the bits into thermometer code signals, a delay unit for delaying output of the lower bits of the digital input signal, a latch unit for synchronizing output signals of the decoders with an output signal of the delay unit, and a current source for converting a digital signal output from the latch unit into an analog signal.
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