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Sound Playback

Overview

Sound playback, both sound effects and voice, are now built into a great many household products and industrial equipment. Sound playback has also gained popularity as an important feature for providing improved accessibility for visually impaired or elderly users. Providing sound playback in consumer products and compact industrial equipment requires very cost effective solutions giving the added functionality at minimum additional cost.

Renesas provides audio decompression software libraries that operate at high speed and with a small memory footprint. The compact and low-cost R8C Family microcontrollers, with the ability to easily generate PWM signals, without the need for special peripheral devices, allows easy addition of advanced flexible sound playback capabilities to products that previously had a simple buzzer as their only sound playback.

System Block Diagram

Recommended Products

Block Semiconductor device Recommended products Features, etc.
Control MCUMCUH8/300H Tiny Series Standard MCU
M16C/Tiny Series
R8C Family
RL78 Family
RX Family
Signal amplifier Op-amp. HA1630xxx Series For 32 W speaker/headphone output
Memory for
large amount of
sound data
EEPROM R1EX24xxx Series I2C bus interface *1
R1EX25xxx Series SPI bus interface *2
General use, Surge absorption, Circuit protection, etc.Zener diodeNNCDxxDA Series High ESD tolerance optimal for use in surge absorption
RDxxS Series 2 terminals SMD
Audio Digital amp. IC R2A15120FA 15 W x 2 ch: BTL (built-in limiter)
R2A15123FP 4 W x 2 ch: Single end
Electronic Volume M61545AFP/FP 2 channels, power supply: 4.5 to 15 V, 2-wire serial interface

*1 I2C: Inter-Integrated Circuit
*2 SPI: Serial Peripheral Interface

 

Related Software

Name Document No.
M3S-S2-Tiny sound playback system *
-
Serial EEPROM driver (free)-

*: Please contact your sales representative or contact us directly.

 

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Technical Information WEB Magazine RENESAS EDGE


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