ELM701数据手册ELM中文资料规格书

描述 Description

The ELM701 is a fun circuit for creating mouse- like noises. Its very low current consumption makes it an ideal candidate for battery-powered toys and novelty items.

All of the logic required for circuit operation is contained within this 8 pin integrated circuit. Normally only a battery, a piezo element, and a single resistor are all that are needed for a complete circuit, although an on/off switch may be desireable.

The ELM701 uses pseudo-random number generators to produce from one to four ‘chirps’ at random intervals of up to about eight seconds. This makes the noises seem more like a real (but fairly active) rodent. Between these series of chirps, the circuit reverts to low power mode in order to conserve battery energy.

特性 Features

·Low power CMOS design
·Wide supply range – 3.0 to 5.5 volt operation
·Low power mode between chirps saves batteries
·Pseudo-random intervals for more realistic sounds
·Push-pull piezo drive eliminates the need for an external capacitor while providing high volume
·Only one external resistor required

应用 Application

·Mousetrap bait
·Unique power on warning
·Voicing for toys
·Coffee machine or office desk item
·A fun plaything