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ＮＥ５０００是一种价廉的低功耗ＣＭＯＳ集成电路，它的功能是完成对电话呼叫进程音即拨号音、回铃音、忙音、组合音的译码，并以三位二进制码的形式输出指示当时电话呼叫进程。它控制信号简单，译码输出可直接与微处理器接口，便于与具有预编程电话呼叫能力的微处理器组成各种智能型通信终端，也可独立使用。组成各种电话呼叫进程音解码电路。因此，ＨＥ５９００在调制解调器、程控交换机、安全防卫设备、自动拨号电话机、录音电话、自动收费公用电话、远端诊断等设备中有着广泛的应用。文中对ＮＥ９００的基本性能、使用等作一介绍。
The NE5000 is a low-cost, low-power CMOS integrated circuit whose function is to decode the progress tone, dial tone, ringback tone, busy tone, and combination tone of the telephone call and output the indication as a three-bit binary code The phone was calling the process. It controls the signal is simple, decoding output can be directly interfaced with the microprocessor for easy and preprogrammed telephone call microprocessor composed of a variety of intelligent communication terminals can also be used independently. Composed of a variety of telephone call process audio decoding circuit. Therefore, HE5900 has a wide range of applications in modem, PBX, security equipment, automatic dial-up telephone, recording telephone, pay-as-pay telephone, remote diagnosis and other devices. The text of the NE900’s basic performance, use, etc. for an introduction.