ONU SERDES 芯片ADN2865,简要功能介绍如下; 1.接收方向( De-mux) (1) 串行速率12.3M~2.7G,CML电平, 连续速率; 集成LOS/LOL检测, LOS检测时间非常短:(LOS响应时间只有1.0uS) (2) 并行接口, 8路LVDS接口(可配置成四路), (3) 集成PRBS generator and detector (4) 可以不需要参考时钟 (5) 双环CDR结构 2.发送方向 (1)串行速率1.25G,CML电平 (2)并行接口, 8路LVTTL接口 控制接口:I2C;用于检测和控制。 二.OLT burst mode CDR +Des ADN2855简要功能介绍如下; (1) 速率支持155M/622M/1244M/1250M (2)串行接口1250M CML电平 (3)内置并串转换(可以BYPASS),并行接口,4路LVDS (4)双环CDR结构, burst mode CDR锁定时间:12bit
AD9868 is the low costw,pin-2-pin compatible version AD9865, see below difference (1) AD9868 remove the IOUTG, in AD9865, the IOUTG also can output about 120mA current. (2) AD9858 limited internal VCO freq 80MHz~200MHz (support 20M~80MSPS data rate), and AD9865 can support 20MHz~200MHz ( 5M~80MSPS data rate). BTW, AD89007 is the new verison of AD9868