package dimension figure
ML2282 /ML2286 series is a high-quality speech synthesis LSI with built-in large-capacity P2ROM™. The LSI, which includes an ADPCM2 decoder, 16-bit DAC, a low-pass filter, and a monaural speaker amplifier, incorporates the peripheral components necessary for speech output in a single chip. The LSI is provided with a variety of functions including 2-channel simultaneous playback, edited palyback, and bank switching.
By using P2ROM in the memory section, the trun-around time from order receiving to mass-production and shipment is reduced significantly and the mask cost is no longer necessary.
16M, 8M, and 4M, are made available in the lineup for each of the P2ROM version.
|Part number||Memory type||ROM
|Maximum playback time(s)|
|ML22825 / ML22865||P2ROM||16M||1044||522||261|
|ML22824 / ML22864||8M||520||260||130|
|ML22823 / ML22863||4M||258||129||64|
- 2-channel mixing function enabling simultaneous playback
- Long-time playback of 1044 seconds in maximum
Large memory size to handle the increase of incorporation of speech data and high quality speech
- Built-in amplifier
- Memory bank function
The built-in memory can be divided, enabling a new way of using speech LSI such as increase of the number of playback phrases.
- The use of P2ROM allows TAT to be significantly reduced.
- Supports the development by evaluation board and special writer.
- 3 products (with the capacities of 4M, 8M, and 16M bits) lined up
- CPU IF: SPI(ML2282x), I2C(ML2286x)
- Household electrical appliances
- Voice guidance of industrial equipment
- Voice information of fees and time
- IH cooking heater
- Compact portable devices
- General consumer equipment, and so on
|Part number||ML2282x/ML2286x series|
|Speech synthesis method||4bit ADPCM2
8bit non-linear PCM
8bit PCM, 16bit PCM
(can be specified for each phrase)
|4.0k, 5.3k, 6.4k, 8.0k, 10.7k, 12.0k, 12.8k ,
16.0k ,21.3k ,24.0k, 25.6k ,32.0k, 48.0kHz
(Each phrase can be specified.)
|Speaker amplifier output||0.7W(8&Omega, 5V)|
|Playback phrase count||Up to 4,096 phrases(ML22825)|
|Other functions||Volume control function, Repeat function, ROM edit function|
|Operating power supply voltage||+2.7V to +5.5V|
|Operating temperature range||-40°C to +85°C|
|Package||30pin plastic SSOP
(2-direction lead type, 0.65mm lead pitch)