应用带语音、拨号及振铃功能的单片电话芯片UBA2050(A)和UBA2051(A;C)设计电子电话装置电路以及它的演示板的应用
The UBA2050, UBA2050A, UBA2051, UBA2051A and UBA2051C are telephony ICs for application in line powe...
UBA2050技术资料
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The UBA2050, UBA2050A, UBA2051, UBA2051A and UBA2051C are telephony ICs for application in line powe...