常见问题 | 罗姆半导体集团

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Product type / feature / difference

Product Replacement

Flash ROM writer

Speech Output Function

Development tools

Factory Programming

Recording / voice analysis

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Is there a product equipped with a recording function?
- There is no product equipped with a recording function in our speech synthesis LSI.

What types of audio data can the speech synthesis LSI replay?
- Please load the WAV file into the Speech LSI Utility and convert it to data for the speech synthesis LSI.

Please tell me how to set the oscillation mode and master clock frequency of the ML22Q53X series.
- Please set with Speech LSI Utility.
  Please refer to Speech LSI Utility User's Manual.
  3.2.9. Selecting source oscillation frequency(Fosc)
  4.2.1.2.10. User setting Parameter Dialog Box(ML22(Q)53x/62x/66x)

Is it necessary to connect the CBUSY B terminal of the ML22Q53X series to the master side?
- It is not always necessary to connect the CBUSY B terminal to the master side. If you do not connect the CBUSYB pin to the master side, follow the CBUSYB "L" level output time described in the AC characteristics.
  For playback command reception, the RDSTAT command can be used to read the internal BUSY B status.
  We recommend that you check BUSY B with the RDSTAT command and periodically check whether the command has been accepted.

When using an external amplifier with the ML22Q53X series, can I select a class AB amplifier or a class D amplifier?
- When using an external amplifier, select a class AB amplifier. Moreover, LOUT (line amplifier output dedicated terminal) and SPP (line amplifier output settable terminal) are carried in ML22Q53X series.
  We recommend using LOUT and SPP.

What are the peripheral parts required for the speech synthesis LSI?
- Capacitor between power supply and GND, speaker, A ceramic resonator etc. is required. See the application circuit example in the product data sheet for more information.

Do you have a sample sound source?
- We can provide sample sound sources.
  It is also possible to create sound ROM data using a sample sound source.

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