ML22Q623 datasheet(1/118 Pages) ROHM

Part #	ML22Q623

Description	4-Channel Mixin g Speec h Synthesis LSI with Built-in Flash M emory

PDF	118 Pages

Scroll/Zoom	100%

Manufacturer	ROHM [Rohm]

Direct Link	http://www.rohm.com

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1 / 118 page

FEDL22Q62X-02

Issue date: Jul 17, 2020

ML22Q623 / ML22Q624 / ML22Q625 / ML22Q626

4-Channel Mixing Speech Synthesis LSI with Built-in Flash Memory

■ Overview

ML22Q623/ML22Q624/ML22Q625/ML22Q626 is a 4-channel mixing speech synthesis LSI with a flash memory for sound

data. It is equipped with a clock synchronous serial interface.

It adopts a HQ-ADPCM

*1, 16-bit D/A converter, and low-pass filter for high sound quality, and incorporates a 1.0W mono

speaker amplifier for driving speakers directly. It is also equipped with a function to detect failure.

The functions necessary for sound output are integrated into a single chip, so that sound functions can be realized simply by

adding this LSI.

● Memory capacity and maximum sound production time (HQ-ADPCM*1 algorithm, registered phrase 1024)

Product Name

Flash memory capacity

Maximum sound production time (sec)

fs=8.0kHz

fs =16.0kHz

fs =32.0kHz

ML22Q623

4Mbits

161

81

40

ML22Q624

8Mbits

325

162

81

ML22Q625

16Mbits

652

326

163

ML22Q626

32Mbits

1308

654

327

Application Circuit

HOST

MCU

16bit

DAC

Filter

Volume

MIX

SPI

Analog Signal

MIX

Decode

Speaker

AMP

FLASH

MEMORY

*1

HQ-ADPCM is "Ky's" high-quality audio compression technique.

"Ky's" is a registered trademark of Kyushu Institute of Technology, a

national university corporation.

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ML22Q623 Datasheet(PDF) 1 Page - Rohm

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