Date : 2020/2/7

車載対応 音声合成LSI


The ML2253x series of automotive-grade 4 channels speech synthesis LSIs with built-in Flash memory are optimized serial audio interfaces and voice data.
Features include HQ-ADPCM, 16bit D/A converter, and low-pass filter for achieving high sound quality, along with an integrated 1.0W monaural speaker amp that enables direct speaker drive.
A failure detection function is also built in capable of detecting malfunctions.
All functions necessary for audio output are integrated on a single chip, making it possible to easily add voice functionality by simply adding this LSI.

  • Specification

  • Documents

  • Tool/Software

Supply Voltage(V) 2.7 to 3.6 or 3.3 to 5.5
Frequency Band(MHz) 4.096
Oscillator Built-in
Operating Temperature(°C) −40 to +105
ROM capacity(bit) External maximum 128M
Playback phrase count 4096
Maximum playback time(sec.) 109min *1
Clock Synchronous Serial
SP amplifier output (W)/class 1.0/
Mixing number(internal)(ch) 4
Other Rewrite Flash from MCU *6 / Serial Audio Interface / Failure detection
Package P-TQFP48-0
Halogen free support Yes
Automotive grade Yes
AEC-Q100 Yes
ML22530 datasheet
Contents Version Date Download
ML22530 datasheet 5 2021/07/20
No Entry
Contents Version Date Download
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