ML22Q532-NNNTBZ0BX

Audio Special Purpose Overview

The ML22Q532-NNNTBZ0BX is a speech synthesis LSI with built-in flash memory, designed primarily for automotive applications. It operates on a supply voltage of 2.7 V to 5.5 V and features an I2C interface. The device is housed in a 48-TQFP package and supports an operating temperature range of -40°C to +105°C. It includes a built-in 1 W mono speaker amplifier.

Audio Special Purpose Feature Summary

• Built-in Flash Memory: Stores sound code data internally.
• I2C Interface: Serial communication interface for control.
• Automotive Temperature Range: Operates from -40°C to +105°C.
• Speaker Amplifier: Built-in 1.0 W mono amplifier (Class AB/D) for direct speaker drive.

Audio Special Purpose Applications

• Automotive voice prompts and alerts
• Vehicle Approach Alert Systems (AVAS)
• In-car infotainment voice output

Audio Special Purpose Procurement Notes

This component is designated as NRND (Not Recommended for New Designs). Engineers should verify current availability through authorized distributors and consider alternative models for new product development. Standard packaging is provided in reels, typically containing 1000 units per factory pack. Moisture sensitivity requires proper handling during storage and assembly.

Audio Special Purpose Selection Notes

Select this LSI when a self-contained speech synthesis solution is required for automotive systems. Ensure the host microcontroller supports the I2C interface. Verify that the application environment stays within the specified -40°C to +105°C operating range. Note that this specific part number is not recommended for new designs; check for successor models or compatible alternatives in the ML22Q series.

Audio Special Purpose Part Context

The ML22Q532 belongs to the ML22Q series of speech synthesizers from ROHM Semiconductor. This family integrates high-quality audio playback, including HQ-ADPCM compression and internal amplifiers, into a single chip to reduce external component count.

Audio Special Purpose Replacement Considerations

Due to the NRND status, evaluate successor models within the ML22Q series or newer automotive-grade speech synthesizers from ROHM. Cross-reference pinouts and interface compatibility to ensure seamless migration. Consult official datasheets for updated feature sets and performance metrics of potential substitutes.