ML22Q374
ML22Q374 is ADPCM Speech Synthesis LSI manufactured by LAPIS.
DESCRIPTION
ML22Q374 is voice synthesis LSI with built-in Flash memory that stores speech data. This LSI includes edit ROM, ADPCM2 decoder, low pass filter and D-class speaker amplifier. Also, ML22Q374 support the synchronous serial interface. By integrating all the functions required for voice output into a single chip, this LSI can be more easily incorporated in pact portable devices.
- Built-in memory capacity and maximum playback time:
Product name
ROM capacity
Maximum playback time (sec) (at fs=8.0k Hz)
4bit ADPCM2
16bit PCM
ML22Q374-XXX
692 Kbits
Notes: ROM capacity shows the numerical value of only a voice area.
- Voice synthesis method:
4-bit ADPCM2
8-bit Nonlinear PCM
8-bit PCM , 16-bit PCM
Can be specified for each phrase.
- Speech ROM capacity
ML22Q374:
692-Kbit Flash
- Sampling frequency(Fs):
6.4 / 8.0 / 10.7 / 12.8 / 16.0 / 21.3 / 25.6 / 32.0 k Hz fs can be specified for each phrase.
- Analog output:
Built-in D-class amplifier
- CPU mand interface:
Synchronous serial interface
- Maximum number of phrases:
30 phrases
- Disconnection detection function /Speaker pin short detection function
- Source oscillation frequency:
4.096 MHz(internal)
- Power supply voltage:
2.0 to 5.5V
- Flash memory rewritable time:
80 times
- Operating temperature range:
- 40 to +85°C
- Package:
16-pin plastic...
