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M3482: DescriptionUM348x Multi-Instrument Melody Generator; File Size24KB，4 Pages; ManufacturerETC

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M3482 Overview

UM348x Multi-Instrument Melody Generator

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M348x Series

UM348x Multi-Instrument Melody Generator

_____________________________________________________________________________

Features

•

Low standby current

•

512-note memory, up to 16 songs

•

8 playing modes by user setting

•

One built-in RC oscillator

•

8 beats selectable

•

3 timbres - piano, organ, and mandolin

•

5 tempos available through mask setting

•

14 tones selectable

•

On-chip envelope modulator and pre-amplifier

General Description

The M3481 series is a mask-ROM-programmed multi-instrument melody generator , implemented by

CMOS technology. It is designed to play the melody according to the previously programmed

information

and is capable of generating 16 songs with 3 instrument effects : piano, organ and mandolin. The

device

also includes a pre-amplifier which provides a simple interface to the driver circuit. The M3481 series is

intended for applications such as toys, door bells, music box, melody clock/timers and telephones.

Absolute Maximum Ratings

DC Supply Voltage .......................................... -0.3V to +5.0V

Input Voltage Range ....................................... Vss-0.3V to Vdd+0.3V

Operating Ambient Temperature .................... 0°C to +70°C

Storage Temperature ....................................... -10°C to +125°C

Electrical Characteristics

(Vss=0V, Vdd=1.5V, Ta=25°C, unless otherwise specified.)

Parameter

Symbol

Min.

Typ.

Operating Voltage

Vdd

1.3V

1.5V

Stand-by Current

Isb

Input Voltage High

Vih

Vdd-0.3V

Input Voltage Low

Vil

Vss

Input Current High

Iih

1.5µA

3µA

Input Current Low

Iil

ENV Pin Drive Current

Ienv

500µA

Output Current (OP1)

Iol

200µA

Output Current (OP2)

Ioh

200µA

Max.

12µA

Vdd

Vss+0.3V

6µA

0.1µA

1200µA

Conditions

No load

Vih=Vdd

Vil =Vss

Venv=0.8V

Vol=0.8V

Voh=0.7V

Playing modes

Program

Mode

SL LP

Standby

First melody→...→Last melody→Stop

↑

First melody→...→Last melody→Repeat from first melody

↑

Start from the present melody→Stop

Repeat the present melody

↑

Change to the next melody→...→Last melody→Stop

↑

Next melody→...→Last melody→Repeat from first melody

↑

Change to the next melody→Stop

↑

Change to the next melody→Repeat the same melody

(

↑

means a low to high voltage level transaction )

M3482 Related Products

	M3482	M3481	M348X	M3485
Description	UM348x Multi-Instrument Melody Generator	UM348x Multi-Instrument Melody Generator	UM348x Multi-Instrument Melody Generator	UM348x Multi-Instrument Melody Generator

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