Datasheet > ML22620

ML22620

更新时间： 2023-09-03 20:25:23

品牌	Logo	应用领域
罗姆 - ROHM		语音合成放大器 PC 驱动存储转换器
页数	文件大小	规格书
121页	1542K
描述
ML22620/ML22660可以在外部连接高达128Mbit的串行存储器，因此是非常适合长时间语音播放应用的语音合成LSI。产品采用实现高音质的HQ-ADPCM、16位D/A转换器和低通滤波器，并内置用来直接驱动扬声器的1.0W单声道扬声器放大器。语音输出所需的功能已经全部集成于1枚芯片中，因此仅需增加本LSI，即可轻松实现语音功能。

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ML22620 数据手册

FEDL22620-05

Issue date: Jan 14, 2022

ML22620

4-Channel Mixing Speech Synthesis LSI

■ Overview

ML22620 is a 4-channel mixing speech synthesis LSI with a serial flash memory interface 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^*1algorithm, registered phrase 1024)

Product Name

Flash memory capacity

Maximum sound production time (sec)

f_s=8.0kHz

f_s=16.0kHz

f_s=32.0kHz

128Mbits

(Serial Flash Memory)

ML22620

5240

2620

1310

FLASH

Analog Signal

16bit

MEMORY

Speaker

AMP

Filter

MIX

Decode

SPI

DAC

Volume

HOST

MCU

Application Circuit

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.

12 3 4 5 6 7...121

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