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变声集成电路TM0071A(或RTS0071A)是一种新型单片CMOS大规模语音处理电路,它在玩具、通信等方面得到广泛应用。 TM0071A采用16脚双列封装,外形图和内电路方框图如图1所示。电路内部具有A/D和D/A双重转换功能,可将输入的语音信号变为数字信号,通过内部处理,再变为音频信号,最后输出原语音信号或多种变调语音信号。该集成电路工作电压范围为3～5V,工作电流8mA左右,最大消耗电流不超过10mA。(13)脚输入音频信号须在0.5～2V之间,典型值为1.5V。(15)脚输出信号幅度1.7V左右。
Variable voice integrated circuit TM0071A (or RTS0071A) is a new monolithic CMOS large-scale voice processing circuit, which is widely used in toys, communications and so on. TM0071A 16-pin dual-in-line package, the outline and internal circuit block diagram shown in Figure 1. Circuit with A / D and D / A double conversion function, the input voice signal into a digital signal, through internal processing, and then into the audio signal, the final output of the original voice signal or a variety of voice signals. The integrated circuit operating voltage range of 3 ~ 5V, operating current 8mA or so, the maximum current consumption does not exceed 10mA. (13) The input audio signal must be between 0.5 ~ 2V, the typical value is 1.5V. (15) foot output signal amplitude of about 1.7V.