FEDL22340-02 Datasheet, PDF (1/37 Pages) List of Unclassifed Manufacturers – ADPCM Speech Synthesis LSI

ML22Q340/340/Q341/341
ADPCM Speech Synthesis LSI
FEDL22340-02
Issue Date: Mar. 23, 2015
GENERAL DESCRIPTION
The ML22340/ML22Q340/ML22341/ML22Q341, which include mask ROM and Flash memory for storing speech data,
respectively, are speech synthesis LSIs which can controll speech playback utilizing an event input system.
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
ML22Q340/340
ML22Q341/341
Capasitance
of ROM(bit)
620K
876K
Maximum Playback time(s) （Fsam=8.0kHz）
HQ-ADPCM 4bitADPCM2 16bitPCM
―
19.8
4.9
35.0
28.0
7.0
• Speech sysnthesis system:
• Speech ROM capacity
• Sampling frequency:
• Analog output:
• Interface:
• Sequencer output function:
• Maximum event count:
• Input pin setting:
• Output pin setting:
• 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) (ML22Q341/341)
(can be specified for each phrase)
ML22340: 620-Kbit Mask ROM
ML22Q340: 620-Kbit Flash
ML22341: 876-Kbit Mask ROM
ML22Q341: 876-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)
Built-in 16-bit DA converter
Event input system (built-in noise elimination function)
16 types
30 events
High-impedance input (CMOS input), pull-down input, or pull-up input is selectable based
on ROM data
High-impedance output, CMOS output, Pch open drain output, Nch open drain output, or
LED drive is selectable based on ROM data
4.096 MHz (Typ.)
2.3V to 5.5V
80 times (ML22Q340/Q341)
−40°C to +85°C
30-pin plastic SSOP (SSOP30-56-0.65-Z6K9-MC)
ML22340-xxxMB (xxx: ROM code number)
ML22341-xxxMB (xxx: ROM code number)
ML22Q340-NNNMB/ML22Q340-xxxMB (xxx: ROM code number)
ML22Q341-NNNMB/ML22Q341-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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