描述 Description

The M65856SP is a CMOS IC that has a microphone peripheral circuit and an echo generation circuit for karaoke use,

on a single chip.

Its Karaoke function makes it ideal for video CDs, mini-compos, CD radio cassette players, VIRs and other similar

devices.

特性 Features

? High-performance digital echo circuit using 16-Kbit RAM

? Internal Surround function that allows audio from a monaural audio source to be reproduced in pseudo-stereo, and

audio from a stereo audio source to be reproduced as surround audio

? A mic amplifier with an ALC makes it possible to handle overload input, and the ALC operating voltage can be

externally set to the desired value.

? Internal dual-line mic volume, echo volume, and echo feedback volume

? Internal stereo mic mixing amplifier

? Internal functions for karaoke enjoyment (Vocal Cut, Auto Vocal Support)

? Interface pin provided for connection to an external key control IC

? The clock has an internal current control-type oscillation circuit, and the generation of unnecessary oscillation can

be prevented because the clock does not affect anything external to the unit.

? Internal Auto Reset circuit that functions when the power supply is turned on

? 5 V single power supply