ML22Q663-NNNTBZ0BX

Audio Special Purpose Overview

The ML22Q663-NNNTBZ0BX is a 4-channel audio signal processor from the ROHM ML22Q series, designed for automotive applications (AEC-Q100 qualified). It integrates high-quality audio processing capabilities including HQ-ADPCM decoding, a 16-bit D/A converter, and a low-pass filter. The device features a built-in 1.0W Class AB/D mono speaker amplifier capable of directly driving speakers. It supports I2C and Clock-Synchronous Serial interfaces for control and operates within a supply voltage range of 2.7V to 5.5V. The component is housed in a 32-TQFP (7x7) package.

Audio Special Purpose Feature Summary

• AEC-Q100 Qualified Automotive Grade Audio Signal Processor.
• Integrates a built-in 1.0W single-channel speaker amplifier (Class AB/D), eliminating the need for external power amplification components.
• Supports I2C and Clock-Synchronous Serial communication interfaces.
• Utilizes HQ-ADPCM compression technology to achieve high sound quality while optimizing memory usage.
• 4-Channel Audio Mixing Capability.

Audio Special Purpose Applications

• Automotive voice guidance systems.
• ADAS (Advanced Driver Assistance Systems) voice output modules.
• AVAS (Acoustic Vehicle Alert System) voice output modules.
• Industrial equipment with status announcement requirements.

Audio Special Purpose Procurement Notes

Verify the specific ordering suffix against the manufacturer's current datasheet to confirm package type and tape/reel specifications. Ensure the selected variant matches the required interface and operating temperature range (-40°C to +70°C) for the target application environment.

Audio Special Purpose Selection Notes

Select this model when an AEC-Q100 qualified, single-chip solution for automotive voice synthesis is required without external amplifiers. Verify compatibility with the host controller's I2C or SPI protocol speeds and voltage levels before integration.

Audio Special Purpose Part Context

This component belongs to the ML22Q series of speech synthesis LSIs by ROHM Semiconductor. The series is characterized by the integration of large-capacity Flash memory and audio processing functions, allowing for simplified system design compared to discrete component solutions. The ML22Q66x sub-series specifically denotes 4-channel audio processors.

Audio Special Purpose Replacement Considerations

Compatible substitutes within the same family include ML22Q664, ML22Q665, and ML22Q666. These variants offer similar functionality but may differ in Flash memory capacity or specific pin configurations. Verify electrical parameters and package dimensions before substitution.