FEDL22321-01 Datasheet, PDF (1/35 Pages) List of Unclassifed Manufacturers – ADPCM Speech Synthesis LSI

ML22Q321/321
ADPCM Speech Synthesis LSI
FEDL22321-01
Issue Date:Mar 23, 2015
GENERAL DESCRIPTION
The ML22321/ML22Q321, which include mask ROM and Flash memory for storing speech data, respectively, are speech
synthesis LSIs which can control speech playback utilizing a serial interface.
It includes speaker amplifier and 16bit DA Converter, so it is possible to have high quality sound and solution for playback with
1chip.
• Playback Time
Product Name
ML22Q321/321
Capasitance
of ROM(bit)
920K
Maximum Playback time(s) （Fsam=8.0kHz）
HQ-ADPCM 4bitADPCM2 16bitPCM
36.8
29.4
7.3
• Speech sysnthesis system:
• Speech ROM capacity
• Sampling frequency:
• Volume control function:
• Analog output:
• Interface:
• Maximum event count:
• Source oscillation frequency:
• Power supply voltage:
• Flash memory rewrite cycles
• Operating temperature range:
• Package:
• Product name:
4-bit ADPCM2
8-bit/16-bit straight PCM system
8-bit nonlinear PCM system
HQ-ADPCM(*1)
(can be specified for each phrase)
ML22321: 920-Kbit Mask ROM
ML22Q321: 920-Kbit Flash
8.0/16.0 /32.0kHz, 6.4/12.8/25.6 kHz/, 10.7/21.3 kHz
(fsam can be specified in units of phrase)
32 steps by an analog value input and ADC (OFF is included)
Built-in 16-bit DA converter
Synchronous serial interface
MSB first, LSB first, or default level of synchronous clock is selectable based on ROM data
62 events
4.096 MHz (Typ.)
2.3V to 5.5V
80 times (ML22Q321)
−40°C to +85°C
30-pin plastic SSOP (SSOP30-56-0.65-Z6K9-MC)
ML22321-xxxMB (xxx: ROM code number)
ML22Q321-NNNMB/ML22Q321-xxxMB(xxx: ROM code number)
(*1)
HQ-ADPCM is audio compression technology featuring high-quality sound. It was developed by “Ky’s”.
“Ky’s” is a registered trademark of Kyushu Institute of Technology, one of the national universities in Japan.
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