4 Channels Constant Current LED Driver With Addressable DMX512 Protocol and Differential Interface

General Description The MY9942, 4 channels constant current LED driver with 14bits grayscale APDM (Adaptive Pulse Density Modulation) control, supports standard / 4X DMX512 protocol and fully differential interface suited for long distance parallel applications. The distinctive DMX512 decodin

文件：2.26848 Mbytes 页数：27 Pages

MY-SEMI

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4位高精度恒流LED驱动器 内建可选址标准DMX512传输协议及差分信号传输接口

MY9942是4位高精度恒流LED驱动芯片支持可选址标准/四倍DMX512传输协议、宽共模输入范围的差分信号及Gamma灰度调整。配合自适应脉冲密度调变(APDM)控制更可降低非对称电流响应造成的损耗，大幅提高画面刷新率。\n \n 独家标准DMX512解碼技术利用内置时钟精准译码DMX512信号。同时，MY9942藉由二个字段选择脚位及九个地址选择脚位来设定装置读取的数据内容，以符合各种灯光系统运用。差分信号接口设计支持宽共模输入范围，使MY9942更适合长距离传输及恶劣环境条件下使用。\n \n MY9942可在7至40伏特电压下工作。芯片提供4个最大承受电压40伏 ·White/CW.WW/R.G.B/R.G.B.W 应用 \n\n·支持1/2/3/4组字段(slot) 数据读取模式 \n\n·7~40伏特电源电压 \n\n· 5~350毫安 恆流输出范围 \n\n·可承受之最大输出电压40伏特 \n\n·仅需四个外接电阻来设定四組恆流电流 \n\n·±1.5% (一般值) 通道间电流差异值 \n\n·±3.0% (一般值) 芯片间电流差异值 \n\n·标准DMX512协议 ( USITT DMX512-A ) \n\n·支持四倍DMX512 协议 (传输速率-1MHz) \n\n·支持宽共模输入电压范围的DMX512差分信号 \n\n·;

Mysemi

明阳半导体

4 Channels Constant Current LED Driver With Addressable DMX512 Protocol and Differential Interface

General Description The MY9942, 4 channels constant current LED driver with 14bits grayscale APDM (Adaptive Pulse Density Modulation) control, supports standard / 4X DMX512 protocol and fully differential interface suited for long distance parallel applications. The distinctive DMX512 decodin

文件：2.26848 Mbytes 页数：27 Pages

MY-SEMI

明阳半导体

4 Channels Constant Current LED Driver With Addressable DMX512 Protocol and Differential Interface

General Description The MY9942, 4 channels constant current LED driver with 14bits grayscale APDM (Adaptive Pulse Density Modulation) control, supports standard / 4X DMX512 protocol and fully differential interface suited for long distance parallel applications. The distinctive DMX512 decodin

文件：2.26848 Mbytes 页数：27 Pages

MY-SEMI

明阳半导体