Datasheet > ML22Q254

ML22Q254

更新时间： 2024-11-20 11:08:19

品牌	Logo	应用领域
罗姆 - ROHM		时钟放大器 PC 高压
页数	文件大小	规格书
57页	1321K
描述
ML22Q234/244/254仅需从MCU输入简单的指令即可轻松播放语音。具有时钟同步串行接口、独立型接口和I2C接口，可满足客户不同的需求。另外，不仅具备高音质、高压缩算法HQ-ADPCM、振荡电路、1W单声道D类扬声器放大器等语音输出所需的功能，还具有改写来自MCU的语音数据的功能。仅需添加本LSI，即可轻松实现语音功能。

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中文翻译

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数据手册

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ML22Q254 数据手册

FEDL22Q254-03

Issued: Jun. 20, 2022

ML22Q254

ADPCM Speech Synthesis LSI

■ GENERAL DESCRIPTION

ML22Q254 is a speech synthesis LSI that incorporates Flash for storing sound code data, and can be controlled with a

I²C interface.

By integrating D-class speaker amplifier, solution required for sound output is made possible with single chip.

● Playback time

Maximum playback time (sec) (at fs^*1= 6.4 kHz)

Product name

ML22Q254

Flash capacity (bit)

HQ-ADPCM

16-bit Straight PCM

676K

(when 30 phrases

are selected)

672K

33.8

6.88

(when 62 phrases

are selected)

33.6

6.72

Notes: Flash capacity shows the numerical value of only a sound area

*1: Sampling frequency

● Speech synthesis algorithm:

HQ-ADPCM

4-bit ADPCM2

8-bit Nonlinear PCM

8-bit / 16-bit Straight PCM

(Can be specified for each phrase)

● Flash capacity:

● Sampling frequency (Fs):

676 Kbit (30 phrases selection),672 Kbit (62 phrases selection)

6.4kHz，8.0kHz，10.7kHz，12.8kHz，16.0kHz，

21.3kHz，25.6kHz，32.0kHz

(Can be specified for each phrase)

● Speaker driving amplifier:

● CPU command interface:

D-class amplifier (driven by 8 Ω)

I²C interface (slave, Maximum communication speed : 400kbps)

30 phrases or 62 phrases

● Maximum number of pharases:

● Disconnection detection function

● Speaker pin short detection function

● Source oscillation frequency:

● Power supply voltage:

8.192MHz (Typ) (internal)

2.0 to 5.5 V

● Flash memory access function by MCU

● Flash memory rewritable time:

● Operating temperature range:

● Package:

100 times

-40°C～+85°C

20-pin plastic TSSOP

ML22Q254-NNNTD/ML22Q254-xxxTD

(xxx: ROM code No.)

HQ-ADPCM is a high sound quality audio compression technology of "Ky's".

"Ky's" is a Registered trademark of National Universities corporate Kyushu

Institute of Technology

1/57

12 3 4 5 6 7...57

中文翻译

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与ML22Q254相关器件

型号	品牌	获取价格	描述	数据表
ML22Q254-NNNTD(Taping)	ROHM	获取价格	ML22Q234/ML22Q244/ML22Q254 can easily play sound by simply entering a simple command from
ML22Q254-NNNTD(Tray)	ROHM	获取价格	ML22Q234/ML22Q244/ML22Q254 can easily play sound by simply entering a simple command from
ML22Q274	ROHM	获取价格	ML22Q274/ML22Q284/ML22Q294有内置闪存，用于存储语音代码数据，ML
ML22Q274-NNNTD(Taping)	ROHM	获取价格	ML22Q274/ML22Q284/ML22Q294 is a speech synthesis LSI supporting an in-vehicle quality tha
ML22Q274-NNNTD(Tray)	ROHM	获取价格	ML22Q274/ML22Q284/ML22Q294 is a speech synthesis LSI supporting an in-vehicle quality tha
ML22Q284	ROHM	获取价格	ML22Q274/ML22Q284/ML22Q294有内置闪存，用于存储语音代码数据，ML
ML22Q284-NNNTD(Taping)	ROHM	获取价格	ML22Q274/ML22Q284/ML22Q294 is a speech synthesis LSI supporting an in-vehicle quality tha
ML22Q284-NNNTD(Tray)	ROHM	获取价格	ML22Q274/ML22Q284/ML22Q294 is a speech synthesis LSI supporting an in-vehicle quality tha
ML22Q294	ROHM	获取价格	ML22Q274/ML22Q284/ML22Q294有内置闪存，用于存储语音代码数据，ML
ML22Q294-NNNTD(Taping)	ROHM	获取价格	ML22Q274/ML22Q284/ML22Q294 is a speech synthesis LSI supporting an in-vehicle quality tha

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