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ML22Q533 Datasheet(PDF) 30 Page - Rohm

Part # ML22Q533
Description  4-Channel Mixin g Speec h Synthesis LSIs with Built-in Flash M emor y fo r Automotive
PDF  178 Pages
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Manufacturer  ROHM [Rohm]
Direct Link  http://www.rohm.com
Logo ROHM - Rohm

ML22Q533 Datasheet(HTML) 30 Page - Rohm

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FEDL22Q53X-02
ML22Q53X
● Mixing function
Up to 4 channels mixing playback is possible at the same time. Commands with channel designation can set channels
independently.
 Restrictions when using Serial Audio Interface(SAI).
When the serial audio interface (SAI) is not used, there is no limitation to the maximum number of mixing in each speech
synthesis algorithm.
<When the serial audio interface (SAI) is not used>
Sampling frequency
(kHz)
Speech synthesis
algorithm
Maximum
mixing number
Playable channels
(○: Playable/×: Not playable)
CH0
CH1
CH2
CH3
4-bit ADPCM2
HQ-ADPCM
All sampling
8-bit non-linear PCM
4
○
○
○
○
frequency
8-bit straight PCM
16-bit straight PCM
When the serial audio interface (SAI) is used, there are some limitations to the maximum number of mixing and playable
channels depending on the sampling frequency.
<When the serial audio interface (SAI) is used>
Sampling frequency
(kHz)
Speech synthesis
algorithm
Maximum
mixing number
Playable channels
(○: Playable/×: Not playable)
CH0
CH1
CH2
CH3
4-bit ADPCM2
○
○
○
×
HQ-ADPCM
○
○
○
×
12.0/24.0/48.0
8-bit non-linear PCM
3*
2
○
○
○
×
11.025/22.05/44.1
8-bit straight PCM
○
○
○
×
16-bit straight PCM
○
○
○
×
SAI*
1
2
○
○
○
×
4-bit ADPCM2
○
○
○
○
HQ-ADPCM
×
×
×
×
8-bit non-linear PCM
4*
3
○
○
○
○
8.0/16.0/32.0
8-bit straight PCM
○
○
○
○
16-bit straight PCM
○
○
○
○
SAI*
1
2
○
○
○
○
*1 When both Lch and Rch are used by SAI, two channels are used by SAI. When only one of Lch or Rch is used, one
channel is used for SAI.
*2 When two channels are used in SAI, one channel can be used, and when one channel is used in SAI, two channels can
be used.
*3 When two channels are used in SAI, two channels can be used, and when one channel is used in SAI, three channels
can be used.
When mixing at the sampling frequencies of 8.0/16.0/32.0kHz with using Serial Audio Interface(SAI), HQ-ADPCM cannot
be used.
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