M3482 ETC1 [List of Unclassifed Manufacturers], M3482 Datasheet

M3482

Manufacturer Part Number

M3482

Description

UM348x Multi-Instrument Melody Generator

Manufacturer

ETC1 [List of Unclassifed Manufacturers]

Datasheet

1.M3482.pdf (4 pages)

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Features

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

Operating Voltage

Stand-by Current

Input Voltage High

Input Voltage Low

Input Current High

Input Current Low

ENV Pin Drive Current

Output Current (OP1)

Output Current (OP2)

Playing modes

Mode

(

Low standby current

512-note memory, up to 16 songs

8 playing modes by user setting

One built-in RC oscillator

means a low to high voltage level transaction )

Symbol

Vdd

Vih

Vil

Isb

Iih

Iil

Ienv

Iol

Ioh

UM348x Multi-Instrument Melody Generator

Program

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

Min.

1.3V

Vdd-0.3V

Vss

1.5 A

500 A

200 A

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

Typ.

1.5V

3 A

Max.

12 A

Vdd

Vss+0.3V

6 A

0.1 A

1200 A

M348x Series

Conditions

No load

Vih=Vdd

Vil =Vss

Venv=0.8V

Vol=0.8V

Voh=0.7V

Related parts for M3482

M3482 Summary of contents

Page 1

UM348x Multi-Instrument Melody Generator _____________________________________________________________________________ Features Powered by a 1.5V battery Low standby current 512-note memory songs 8 playing modes by user setting One built-in RC oscillator General Description The M3481 series is a mask-ROM-programmed multi-instrument melody ...

Page 2

... No connection 14 OSC2 External oscillator terminal 1 15 OSC1 External oscillator terminal 2 16 Vdd Positive power supply M3482 (12 songs) American Patrol Rabbits Oh My Darling, Clementine Butterfly London Bridge Is Falling Down Row, Row, Row Your Boat Are You Sleeping Happy Birthday Joy Symphony Home Sweet Home ...

Page 3

Typical Application Circuit A. MELODY DOOR BELL B. LOW COST APPLICATIONS USING SPEAKER (1) One-shot (2) Level-hold 3 ...

Page 4

C. LOW COST APPLICATIONS USING PIEZO BUZZER (1) One-shot The inductor in parallel can be replaced by a 100k resistor but the sound level will be lower. REV.4- pages ) (2) Level-hold 4 ...

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