红外接收器TSOP75D25和TSOP35D25(Vishay)

日前,Vishay Intertechnology, Inc.宣布,推出两款针对与3D电视机配套使用的LCD快门眼镜而专门开发的红外接收器 --- TSOP75D25和TSOP35D25,扩充其光电子产品组合。表面贴装的TSOP75D25和TSOP35D25红外接收器可以装进主动式3D眼镜里,接收来自电视机的红外信号,确保眼镜的LCD快门能够恰当地同步开启和关闭,从而产生3D效果。

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接收器的载波频率设定为25kHz,这个频率比标准的遥控系统要低,有助于规避来自电视和机顶盒遥控器的可能干扰。由于电视遥控器的发射器和接收器的工作波长是940nm,TSOP75D25和TSOP35D25可以接收来自830nm或850nm发射器的3D同步信号,进一步避免可能的干扰。象所有Vishay的红外接收器一样,TSOP75D25和TSOP35D25对紧凑型荧光灯、LCD背光和等离子面板的光噪具有业界领先的抑制能力。

TSOP75D25和TSOP35D25把一个光电二极管、放大器、自动增益控制、带通滤波器、解调器和控制IC装进一个小型封装内,帮助客户减小3D眼镜的重量,同时接收器的超低耗电使电池寿命达到最大。由于TSOP75D25和TSOP35D25工作在25kHz载波频率下,信号模式达到至少6个载波周期,可以实现非常高的信噪比。最后,由于这些新款红外接收器收到的是相对基带信号调制过的同步信号,在电视机中使用一个发射器就能达到超过26米的发送距离。

TSOP75D25和TSOP35D25是表面贴装器件,能够以侧视或顶视方式安装。这两款器件的视角为±50°,这样能够不丢失信号的情况下让遥控器的前部大范围移动。TSOP75D25的尺寸是2.3mmx3.0mmx6.8mm,具有两个透镜,TSOP35D25的尺寸是4.0mmx5.3mmx7.5mm,具有一个透镜。

新款TSOP75D2和TSOP35D2现可提供样品,量产订货的供货周期为六周到八周。

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