ROHM ML22120 Automotive-Grade Speech Synthesis LSI

发布时间：2023-11-06 15:00
作者：AMEYA360
来源：ROHM
阅读量：1512

　　ROHM Semiconductor ML22120 Automotive-Grade Speech Synthesis LSI is designed for vehicle approach alert systems (AVAS) and sounds outside the vehicle. The ML22120 is equipped with functions for adjusting playback sounds, such as vehicle proximity alert sounds. By changing the pitch and volume of the playback sound, it is possible to comply with the legal requirements for vehicle proximity alert sounds, making it easy to realize vehicle proximity alert sounds. An equalizer function is also provided to simplify sound adjustment after installation in the vehicle and for each vehicle. Furthermore, a failure detection function is provided to detect abnormalities in communication with the main microcontroller or external oscillator, allowing for safe and reliable use.

ROHM ML22120 Automotive-Grade Speech Synthesis LSI

　　This memory type comes with a serial flash memory interface for sound data and is compatible with the sound data playback function (sound generator). The ML22120TB external memory type adopts a 16-bit D/A converter and low-pass filter, which release high-quality sound and come with a 5-band equalizer as a sound quality effect processing.

　　The ROHM Semiconductor ML22120 LSI supports a maximum external ROM of 128M.

　　FEATURES

　　*Sound generator:

　　。16bit straight PCM Speech synthesis algorithm

　　。64 maximum number of phrases

　　。128Mbits flash memory capacity

　　*48.0kHz/24.0kHz/12.0kHz and 32.0kHz/16.0kHz/8.0kHz sampling frequency

　　*10kΩ driving line amplifier output

　　*Clock synchronous serial interface/I2C interface (Slave) MCU interface

　　*4.096MHz and 4.000MHz master clock frequency

　　*2.7V to 3.6V power-supply voltage

　　*Package dimensions:

　　。32-pin TQFP (7mm x 7mm, 0.8mm pitch)

　　。32-pin WQFN (5mm x 5mm, 0.5mm pitch)

　　。24-pin WQFN (4mm x 4mm, 0.5mm pitch)

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