LVDS与TMDS得比较.pptVIP

下载本文档

336
0
约2.12万字
约 32页
2017-02-19 发布于上海
举报
版权申诉

LVDS与TMDS得比较.ppt

1、本文档共32页，可阅读全部内容。
2、有哪些信誉好的足球投注网站（book118）网站文档一经付费（服务费），不意味着购买了该文档的版权，仅供个人/单位学习、研究之用，不得用于商业用途，未经授权，严禁复制、发行、汇编、翻译或者网络传播等，侵权必究。
3、本站所有内容均由合作方或网友上传，本站不对文档的完整性、权威性及其观点立场正确性做任何保证或承诺！文档内容仅供研究参考，付费前请自行鉴别。如您付费，意味着您自己接受本站规则且自行承担风险，本站不退款、不进行额外附加服务；查看《如何避免下载的几个坑》。如果您已付费下载过本站文档，您可以点击这里二次下载。
4、如文档侵犯商业秘密、侵犯著作权、侵犯人身权等，请点击“版权申诉”（推荐），也可以打举报电话：400-050-0827(电话支持时间：9:00-18:30)。
5、该文档为VIP文档，如果想要下载，成为VIP会员后，下载免费。
6、成为VIP后，下载本文档将扣除1次下载权益。下载后，不支持退款、换文档。如有疑问请联系我们。
7、成为VIP后，您将拥有八大权益，权益包括：VIP文档下载权益、阅读免打扰、文档格式转换、高级专利检索、专属身份标志、高级客服、多端互通、版权登记。
8、VIP文档为合作方或网友上传，每下载1次，网站将根据用户上传文档的质量评分、类型等，对文档贡献者给予高额补贴、流量扶持。如果你也想贡献VIP文档。上传文档

LVDS与TMDS得比较

A comparison of LVDS vs. TMDS for LCD Monitor Applications February 1999 Interface Applications LDILVDS Display Interface(Low Voltage Differential Signaling)offered by National Semiconductor Corp.PanelLink? / TMDS ? Transition Minimized Differential Signalingoffered by Silicon Image Inc. Goals of a Monitor Interface Supports a wide range of panels Drive long, low cost cables Low EMI High noise rejection Open Standard Multiple sources (ICs, Cables, Connectors) Low Cost LDI Block Diagram TMDS Block Diagram Panel I/F Bandwidth Demands The OpenLDI Advantage! Bandwidth for today’s (SXGA) and tomorrow’s (UXGA/HDTV/QXGA) high-resolution displays Open Standard: Physical layer defined in ANSI/TIA/EIA-644 Low cost, multiple suppliers of cable connectors Multiple suppliers of LVDS silicon today No Licenses required Compatible with today’s de-facto Notebook standard digital interface (FPD-Link) LDI vs. TMDS Architecture Impact - UXGA Timing Parameter Comparison Data Payload Comparison 7 is Better than 10 Bit widths are larger - better cable transmission Maximum bandwidth is higher - supports higher resolution panels today Timing margins are larger - better data recovery Inter-pair skew tolerance is larger (equal to a bit time) Intra-pair skew tolerance is larger (% of a bit time) Lower frequency circuitry on chip: promotes integration less high frequency EMI Efficiency Comparison LDI 7 bit payload 6 Pixel Data bits 1 DC Balance Bit TMDS 10 bit (TM Encoded) payload 8 Pixel Data bits 1 encoding bit 1 DC Balance bit LDI Transmission Pixel Data 7 bit frame (6 data) DC Balanced 86% Efficient Divide by 7: Larger sub symbols Maximizes Sampling Margins Increases Intra-pair skew tolerance Control Data Minimum Transitions (2 maximum) TMDS Transmission Pixel Data 10 bit frame (8 data) DC Balanced Encoded (22% less transitions) 80% Efficient Divide by 10: decreases F maximum decreases intra-pair skew tolerance SXGA ApplicationTransition Comparison Transition