Datasheet > RTS903

RTS903

更新时间： 2024-11-08 23:33:19

品牌	Logo	应用领域
其他 - ETC		/
页数	文件大小	规格书
6页	112K
描述
DUAL-TONE MELODY GENERATOR

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中文翻译

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数据手册

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RTS903 数据手册

RTS903

DUAL-TONE MELODY GENERATOR

Features

Wide operating voltage range: 2.4V to 5.0V

Low Stand-by current

768-note ROM memory

Direct LED drive, where LED flash is programmable.

Typical oscillator frequency: 128 KHz

Built-in digital envelope

1 sequence trigger key

Audio output drives speaker directly.

Power-ON Reset; melody begins from the first note.

General Description

RTS903 is a CMOS LSI designed for toys, doorbells, music boxes, and melody clocks/timers.

It is designed to play pre-programmed melody and is capable of generating dual-tone melody

and natural sounds in piano effect. By pushing the sequence trigger key, all songs are

sequentially selected and played with an Auto-Stop function. In addition, RTS903 provides

PLED and PEN pins to drive LED and the motor. The blinking of LED is programmable to

meet different user applications.

Pin Assignment

Block Diagram

OSCI

OSCO

Tone

Generator

Oscillator

Circuit

Modulator

OUT

PEN PLED

Ripple

GND

Counter

OSCO

OSCI

VDD

OUT

₅⁴RTS903¹₁₂³

PEN

PTB

Tempo

Generator

ROM

TRB

PLED

Address

Counter

Rhythm

Generator

TRB

PTB

Control

Logic

www.msquaretech.com

V2.0

May/12/2002

Page 6 of 1

The above information is the exclusive intellectual property of M-Square Technologies Corporation and shall not be disclosed, distributed without permission from M-Square.

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