ML22Q234-NNNTDZWATL

Audio Special Purpose Overview

The ML22Q234-NNNTDZWATL is a speech synthesis LSI from ROHM Semiconductor's ML22Q series, designed for high-quality audio playback. It features an integrated D-class speaker amplifier and supports external flash memory via an SPI interface (up to 128Mbit). The device utilizes the HQ-ADPCM compression algorithm for efficient voice data storage and playback.

Audio Special Purpose Feature Summary

• Speech synthesis LSI with SPI interface
• Supports up to 128Mbit external flash memory
• Integrated D-class speaker amplifier
• HQ-ADPCM high-compression audio decoding

Audio Special Purpose Applications

• Consumer electronics requiring voice prompts
• Audio devices needing short-time playback
• Applications integrating high-quality speech synthesis

Audio Special Purpose Procurement Notes

Verify the specific package variant (Tape & Reel vs. Cut Tape) against project requirements. Confirm that the operating temperature range meets environmental specifications. Ensure the host system provides the necessary SPI interface and external flash memory if not using internal memory options.

Audio Special Purpose Selection Notes

Select this component when a single-chip solution for voice playback with integrated amplification is required. Consider the 20-TSSOP package dimensions for PCB layout compatibility. Verify that the supply voltage range aligns with the system power design.