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.

  • Specification

  • Documents

  • Tool/Software

Operating Voltage(V) 2.7 to 3.6 or 3.3 to 5.5
Operating Frequency(MHz) 4.096
Oscillator Built-in
Operating Temperature(°C) −40 to +105
ROM capacity(bit) External maximum 128M
Number of Phrases 4096
Maximum Playback Time 109min *1
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
Package P-TQFP48-0707-0.50-Z6K6
Halogen Free Support Yes
Automotive Grade Yes
AEC-Q100 Yes
Indutrial Grade -
ML22530 datasheet
Contents Version Date Download
ML22530 datasheet 5 2021/07/20
Implementation specifications
Package code Contents Download
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
Environmental data
Package code Contents Download
P-TQFP48-0707-0.50-Z6K6 RoHS Certificate of Compliance, Reach Certificate of Compliance, List of ingredient substances, SOC Analysis Report
No Entry
Contents Version Date Download
- - - -

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