Speech Synthesis LSI with CPU interface Built-in Flash/Mask ROM
The ML2233x series, which include built-in mask ROM/Flash memories and speaker amplifier, are speech synthesis LSIs that can perform control in serial interface. By using the serial interface, speech playback can be easily performed simply by connecting the LSI to the existing system. The LSI enables easily control of the peripheral circuits such as LED drive and relay ON/OFF with using the existing microcontroller, as well as speech playback. Speech playback of 30 patterns and sequence output are possible. This enables a system to be easily configured by using the logic output of the existing system for the input signals.
For the Flash memory, the customer can write speech data on the customer side by using LAPIS Semiconductor’s dedicated tool.
- CPU interface
- Built-in high-quality HQ-ADPCM(ML22Q341/341)
- Built-in speaker amplifier(1.0W/5V using 8Ω)
- 4 products (with the capacities of 640K , 896K bits) lined up
- High-impedance output, CMOS output, Pch open drain output, Nch open drain output, or LED drive is selectable based on ROM data
- Sequencer output
| Parameter | Specification | |||
|---|---|---|---|---|
| Part number | ML22Q330 datasheet[pdf] |
ML22330 datasheet[pdf] |
ML22Q331 datasheet[pdf] |
ML22331 datasheet[pdf] |
| Speech synthesis method | 4bit ADPCM2, 8bit PCM, 16bit straight PCM (Can be specified for each phrase.) |
4bit ADPCM2, HQ-ADPCM, 8bit PCM, 16bit straight PCM (Can be specified for each phrase.) |
||
| Memory type | Flash memory | Mask ROM | Flash memory | Mask ROM |
| Speech ROM capacity | 640Kbit | 896Kbit | ||
| Sampling frequency Fosc=4.096MHz |
6.4, 8.0, 10.7, 12.8, 16.0, 21.3, 25.6, 32.0 kHz (Each phrase can be specified.) |
|||
| Playback time fs=8kHz | 20 seconds (ADPCM2) | 35 seconds?(HQ-ADPCM) | ||
| Analog output | Built-in 16-bit D/A converter | |||
| Interface | Serial Interface | |||
| Maximum event count | 30 events | |||
| SEQ patterns | 26 patterns | |||
| Operating power supply voltage | +2.2 to +5.5V | |||
| Operating temperature range | -40°C to +85°C | |||
| Flash memory rewrite cycles | 80 cycles | - | 80 cycles | - |
| Package | 30pin plastic SSOP | |||
*HQ-ADPCM is a high sound quality audio compression technology of "Ky's".
"Ky's" is a registered trademark of National University Corporate Kyushu Institute of Technology.
ML2233x package dimension figure
Playback Time
| Part number | Memory Type | ROM Capacity (bit) |
Maximum Playback Time(s) (Fsam=8.0kHz) | ||
|---|---|---|---|---|---|
| HQ-ADPCM | 4bitADPCM2 | 16bitPCM | |||
| ML22Q330 | Flash memory | 640K | - | 20 | 5 |
| ML22330 | Mask ROM | ||||
| ML22Q331 | Flash memory | 896K | 35 | 28 | 7 |
| ML22331 | Mask ROM | ||||
ML22Q330-NNN/ML22Q331-NNN
():Applies to ML22Q331
ML22330-XXX/ML22331-XXX
():Applies to ML22331
Application Circuit Example
- Speech Synthesis LSI
- ML2282x/ML2286x series -4M/8M/16M bit 2 channel mixing speech synthesis LSI with large scale P2ROM™-
- ML2272x/ML2276x series -Speech speed and pitch conversion speech synthesis LSI with 4M/8M/18M bit large scale P2ROM™-
- ML2280x/ML22P80x series
- ML22Q563/ML2256x series
- ML22321/ML22Q321 series
- ML22Q553
- ML22Q573/ML2257x series
- ML22Q594
- ML2233x/ML22Q33x series
- ML2234x/ML22Q34x series
- ML22Q374/ML22Q394
- ML22420/ML22460 -Mixing speech synthesis of four channels with serial ROM interface LSI-
- ML2011 -MP3 decoder LSI with monaural speaker amplifier-
*P2ROM™(Production Programmed ROM)
The above logos are trademarks of LAPIS Semiconductor CO., LTD.
The top logo for Speech LSI is a registered trademark in the U.S.
Please inquire from
Communication LSI
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