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Short playback lineup

  Data
sheet		 Supply
voltage
(V)		 Frequency
Band
(MHz)		 Oscillator Operation
temperature
(°C)		 ROM
capacity
(bit)		 Playback
phrase
count		 Maximum
playback
time(s)		 CPU
I/F		 SP
amplifier
output
(W)
/class		 Mixing
number
(internal)
(ch)		 Other PKG For
automotive*3		 Sample
and
Buy
  • *1 : Maximum playback time when sampling frequency is 6.4kHz with HQ-ADPCM.
  • *2 : Maximum playback time when sampling frequency is 6.4kHz in ADPCM2.
  • *3 :  is a vehicle compatible product.  can provide AEC-Q100 qualified products.

Overview

Easily provide high quality audio solutions, decoders, amplifiers, filters, memory, all-in-one! Built-in 692Kbit to 4Mbit ROM that is easy to use for short playback.

  • Short playback Speech Synthesis LSI has a ROM of 692Kbit to 4Mbit.
    Lineup of [Products with Flash memory] and [Products with MaskROM], and can be replaced with complete pin compatibility.
    Developed based on Flash memory products, mass production can be carried out with either Mask ROM products or Flash memory shipped blank (unwritten). Select the best format according to application needs.

Product features

Features 1Integrated oscillator and Class D amp reduces component count

The built-in high accuracy 4.096MHz+1.5% (–10°C to +50°C) oscillator and Class D amp require almost no peripheral parts and enable audio playback by simply connecting to a speaker. In addition, the compact package reduces mounting area.

  • Applicable Models : ML22Q374、ML22Q394
Reduced mounting area

Features 2Integrated Class D amp ensures high efficiency output

Class D speaker amps are capable of 1.0W (Max) output, feature low heat generation even at high (audio) volumes, and minimize heat dissipation measures.
In addition, efficiency is excellent at low battery power, reducing current consumption and prolonging battery life.

  • Applicable Models : ML22Q374、ML22Q394
Speaker Output Power vs. Efficiency

Feature 3Built-in disconnection detection function eliminates the need to worry about speaker failure

The ML223xx series includes a disconnection detection function that can provide notification (i.e. via LED) in the event no sound is output due to disconnection between the speaker amp and speaker. Passing current between SPP and SPM enables detection through High/Low determination. This ensures worry-free operation even in the event of speaker disconnection.

  • Applicable Models : ML22Q374、ML22Q394
Disconnection detection function

Applications

LAPIS Technology's Short Playback Speech Synthesis LSI is ideal for sound effects and warning sounds in rice cookers, air conditioners, remote controllers for hot water supply, toys, alarm clocks, etc. lasting from tens of seconds to several minutes.
Two types are available: MaskROM for mass production and Flash memory with rewritable data.

Speech Synthesis LSI Application for Short Playback

Reference board lineup

  Users
Manual		 Board
outline
(mm)		 Supported
LSI		 Composition Remarks Sample
and
Buy

LSI Document download

 

Data
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Manual

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Errata

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Package
code

Outline
drawing
Mounting
pecifications

Environmental
data

MSL

Reference board document download

 

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Users
Manual

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White
paper

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Errata

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Other

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