Description: There are chip clock oscillator, 128K bytes EZPROM (electrical erasable programmable read-only memory), low-noise pre-amplifier, AGC circuit, anti-aliasing filter, smoothing filter, analog transponders, differential power amplifier system such as the quality of voice recording and all the basic functions of the circuit.
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基于ISD25120多功能语音报警卡及其应用.pdf
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