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ML22562 Scheda tecnica(PDF) 1 Page - List of Unclassifed Manufacturers

Il numero della parte ML22562
Spiegazioni elettronici  4-Channel Mixing Speech Synthesis LSI
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FEDL2257-05
Issue Date: Apr. 25, 2013
ML22Q573-NNNMB/ML22Q573-xxxMB/ML2257X-xxxMB
4-Channel Mixing Speech Synthesis LSI with Built-in FLASH/MASK ROM for Automotive
1/66
GENERAL DESCRIPTION
The ML22Q573-NNN, ML22Q573-xxx and ML2257X-xxx are 4-channel mixing speech synthesis LSIs with
built-in FLASH/MASK ROM for voice data.
These LSIs incorporate into them an HQ-ADPCM decoder that
enables high sound quality, 16-bit D/A converter, low-pass filter, and 1.0 W monaural speaker amplifier for
driving speakers.
Since functions necessary for voice output are all integrated into a single chip, a system can
be upgraded with audio features by only using one of these LSIs.
• Capacity of internal memory and the maximum voice production time (when HQ-ADPCM※1 method used)
Maximum voice production time (sec)
Product name
ROM capacity
fsam = 8.0 kHz
fsam = 16.0 kHz
fsam = 32.0 kHz
ML22Q573-NNN/-xxx
ML22573-xxx
4 Mbits
161
80
40
ML22572-xxx
2 Mbits
79
39
19
FEATURES
• Speech synthesis method:
Can be specified for each phrase.
HQ-ADPCM / 8-bit non-linear PCM / 8-bit PCM / 16-bit PCM
• Sampling frequency:
Can be specified for each phrase.
12.0/24.0/48.0 kHz, 8.0 / 16.0/32.0 kHz, 6.4/12.8/25.6 kHz
• Built-in low-pass filter and 16-bit D/A converter
• Built-in speaker driver amplifier:
1.0 W, 8
Ω (at DV
DD = 5 V)
• External analog voice input (built-in analog mixing function)
• CPU command interface:
Clock synchronous serial interface
• Maximum number of phrases:
1024 phrases, from 000h to 3FFh
• Edit ROM
• Volume control:
CVOL command: Adjustable through 32 levels (including OFF)
AVOL command: Adjustable through 50 levels (including OFF)
• Repeat function:
LOOP command
• Channel mixing function:
4 channels
• Power supply voltage detection function: Can be controlled at six levels from 2.7 to 4.0 V (including the
OFF setting)
• Source oscillation frequency:
4.096 MHz
• Power supply voltage:
2.7 to 5.5 V
• Operating temperature range:
–40
°C to +105°C※2
• Package:
heat sink type 30-pin plastic SSOP(P-SSOP30-56-0.65-6K-MC)
•Product name:
ML22Q573-NNNMB
ML22573-xxxMB/ML22572-xxxMB
(“xxx” denotes ROM code number)
HQ-ADPCM is a high sound quality audio compression technology of "Ky's".
“Ky’s” is a Registered trademark of National Universities corporate Kyushu
Institute of Technology
1
The limitation on the operation time changes by the using condition. (Refer to Page62)
2


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