Date : 2020/2/7
Speech Synthesis LSI with Automotive grade
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.
|Operating 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|
|Number of Phrases||4096|
|Maximum Playback Time||109min *1|
|CPU I/F||I2C /
Clock syncronous serial
|SP Amplifier Output(W)/Class||1.0/
|Number of Mixing(Internal)(ch)||4|
|Others||Rewrite Flash from MCU *5 / Serial Audio Interface / Failure detection|
|Halogen Free Support||Yes|
|P-TQFP48-0707-0.50-Z6K6||Outline and Dimension, Recommended Reflow Conditions, Shipment Package Specification, Mounting area for package lead soldering to PC boards, Marking Layout|