Date : 2020/2/7
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.
|Supply Voltage(V)||2.7 to 3.6 or 3.3 to 5.5|
|Operating Temperature(°C)||−40 to ＋105|
|ROM capacity(bit)||External maximum 128M|
|Playback phrase count||4096|
|Maximum playback time(sec.)||109min *3|
|SP amplifier output (W)/class||1.0/
|Other||Rewritable flash from MCU *7
Serial Audio Interface
|Halogen free support||Yes|
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