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舊旗艦迎降價潮！iPhone 12 Pro 下殺破 6,000、三星也有近萬元

Published: September 16, 2021

隨著蘋果、三星等各大品牌推出新機，若想要撿便宜，可以考慮前一年的旗艦機款，目前都迎接限量的降價潮。iPhone 12 Pro 256G 就有突破 6,000 元以上的降幅，三星 Galaxy S20 FE 更有近萬元。

Source: ltn.com.tw

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Telecommunications PassIphone 12 ProGalaxy S20 Fe

中金：下半年国内光模块市场回暖 优质个股迎来配置机遇 _ 东方财富网

Published: August 4, 2021

　　 光模块是光通信网络的重要组成部分，核心功能是实现光电转换。光模块主要由光电子器件、功能电路和光接口等组成，其中光电子器件包括光发射器件(TOSA)和光接收器件(ROSA)，核心结构分别为激光器和探测器。在光模块发送端输入一定码率的电信号，经TOSA中的驱动芯片(Driver)处理后，驱动激光器发射出一定频率的调制光信号，通过光纤传输后到达另一光模块的接收端，由探测器转换为电信号后，经跨阻放大器(Tia)和限幅放大器(LA)后输出相应码�...

Source: eastmoney.com

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