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······························································ （105）
2。3。2 主要性能指标················································································································ （106）
2。3。3 芯片封装与引脚功能···································································································· （106）
2。3。4 内部结构与工作原理···································································································· （107）
2。3。5 应用电路设计················································································································ （109）
2。4 868。35 MHz OOK 接收器芯片RX6501 的原理与应用电路设计············································· （118 ）
2。4。1 概述······························································································································· （118 ）
2。4。2 主要性能指标················································································································ （118 ）
2。4。3 芯片封装及引脚功能···································································································· （119 ）
2。4。4 内部结构与工作原理···································································································· （121）
2。4。5 应用电路设计················································································································ （124）
2。5 250MHz～450MHz ASK 接收器芯片RX3310 的原理与应用电路设计·································· （125）
2。5。1 概述······························································································································· （125）
2。5。2 主要性能指标················································································································ （125）
2。5。3 芯片封装与引脚功能···································································································· （126）
2。5。4 内部结构与工作原理···································································································· （127）
2。5。5 应用电路设计················································································································ （127）
2。6 315MHz 遥控无键进入系统接收器模块DK1000R 的原理与应用电路设计·························· （129）
2。6。1 概述······························································································································· （129）
2。6。2 主要技术指标················································································································ （129）
2。6。3 模块封装与引脚功能···································································································· （130）
2。6。4 内部结构与工作原理···································································································· （132）
2。6。5 应用电路设计················································································································ （133）
2。7 300MHz～450MHz ASK 接收器芯片U3745BM 的原理与应用电路设计···�