ML22Q294-NNNTDZ0ATL

Audio Special Purpose Overview

The ML22Q294-NNNTDZ0ATL is a speech synthesis LSI from ROHM Semiconductor designed for automotive applications. It features built-in flash memory for storing voice code data and supports I2C interface control. The device integrates a Class D speaker amplifier, enabling a single-chip solution for voice reproduction. Operating within a voltage range of 2.7V to 5.5V and a temperature range of -40°C to +105°C, it meets AEC-Q100 standards.

Audio Special Purpose Feature Summary

• Built-in Flash Memory: Stores voice code data.
• I2C Interface Control: Allows flexible integration with microcontrollers via the I2C communication protocol.
• Integrated Class D Amplifier: Includes a mono speaker amplifier, reducing external component count.
• Automotive Grade Reliability: Complies with AEC-Q100 standards for operation between -40°C and +105°C.

Audio Special Purpose Applications

• Audible warning systems for vehicles (e.g., pedestrian alert, door open warnings)
• In-car infotainment system prompts
• General automotive voice output applications

Audio Special Purpose Procurement Notes

Verify the specific ordering suffix Z0ATL against official ROHM documentation to confirm package type (20-TSSOP) and tape/reel configuration. Ensure compatibility with the target I2C bus speed and voltage levels. Confirm that the 20-TSSOP footprint matches the PCB design. Check for any required development boards or reference designs for initial validation.

Audio Special Purpose Selection Notes

Select this model if I2C control is preferred over standalone or clock-synchronous interfaces. Choose based on the requirement for a built-in amplifier to drive small speakers directly. Verify that the 2.7V to 5.5V supply range aligns with the vehicle's power architecture.

Audio Special Purpose Part Context

This component belongs to the ML22Q series of speech synthesis LSIs. This series is part of ROHM's portfolio aimed at simplifying voice output implementation in automotive electronics by integrating memory, processing, and amplification.