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首頁 >> 産品 >>通信類 >>電話機類 >> DTMF來電顯示解碼電路 AiP9172

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DTMF來電顯示解碼電路 AiP9172

産品型号：: AiP9172

産品名称：: DTMF來電顯示解碼電路

封裝形式：: DIP18/ SOP18/ DIE

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AiP9172是一個完整的雙音多頻接收器電路，具有頻帶分離濾波器和數字解碼功能，並可實現掉電及禁止操作模式。濾波器部分采用開關電容技術用于將撥號音頻信號分離成高頻組信號和低頻組信號。在解碼器中使用數字計數技術來檢測所有16種雙音多頻音頻對，並把它們編成4位碼輸出。電路內置撥號音阻隔功能，並備有差動輸入放大器、時鍾振蕩器和三態鎖存總線接口，因此外接元件數可減至最少。

● 工作电压范围：2.5V~5.5V
● 最少的外部元件
● 无需外部滤波器
● 掉电模式下，低待机电流，低功耗
● 性能卓越
● 采用3.58MHz晶体或时钟
● 带三态输出的MCU接口
● 可通过INH禁止1633Hz
● 封裝形式：DIP18/ SOP18/ DIE

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