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4。1。5 应用电路设计················································································································ （271 ）
4。2 900MHz 无绳电话射频前端芯片MAX2420/ 21/22/60/63 的原理与应用电路设计················ （273 ）
4。2。1 概述······························································································································· （273 ）
4。2。2 主要性能指标················································································································ （273 ）
4。2。3 芯片封装与引脚功能···································································································· （274 ）
4。2。4 内部结构与工作原理···································································································· （275 ）
4。2。5 应用电路设计················································································································ （275 ）
4。3 全球定位系统GPS 接收机射频芯片MAX2740 的原理与应用电路设计······························· （279 ）
4。3。1 概述······························································································································· （279 ）
4。3。2 主要技术指标················································································································ （279 ）
4。3。3 芯片封装与引脚功能···································································································· （280 ）
4。3。4 内部结构与工作原理···································································································· （281 ）
4。3。5 应用电路设计················································································································ （282 ）
4。4 数字卫星接收机（DBS ）变频调谐器芯片MAX2102/MAX2105 的原理与应用电路设计··· （286 ）
4。4。1 概述······························································································································· （286 ）
4。4。2 主要性能指标················································································································ （286 ）
4。4。3 芯片封装与引脚功能···································································································· （286 ）
4。4。4 内部结构与工作原理···································································································· （287 ）
4。4。5 应用电路设计················································································································ （287 ）
4。5 WCDMA 与GSM900 双频双模手机射频单元········································································· （294 ）
4。5。1 概述······························································································································· （294 ）
4。5。2 WCDMA/GSM 双频双模手机射频单元参考设计方案的关键芯片····························· （295 ）
4。5。3 WCDMA/GSM 双频双模手机射频单元参考设计方案················································ （300 ）
4。6 无线USB 接口芯片CY694X 的原理与应用电路设计······································································ （302 ）
4。6。1 概述······························································································································· （302 ）
4。6。2 CY694X 系列芯片内部结构························································································· （302 ）
4。6。3 采用CY6941 的无线USB 光鼠标电路······································································· （302 ）
4。6。4 采用CY6942 的无线USB 键盘电路············································································ （303 ）
4。6。5 采用CY6943 和CY7C63723 的USB 连接器······························································ （303 ）
参考文献····················································································································· （304 ）
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