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P89682K Datasheet(PDF) 7 Page - Aplus Intergrated Circuits

Part # P89682K
Description  VOICE OTP IC
PDF  44 Pages
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Manufacturer  APLUS [Aplus Intergrated Circuits]
Direct Link  http://www.aplusinc.com.tw
Logo APLUS - Aplus Intergrated Circuits

P89682K Datasheet(HTML) 7 Page - Aplus Intergrated Circuits

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Integrated Circuits Inc.
aP89682K/341K/170K/085K
Ver 2.5.1
7
May 24 2016
 VOICE SECTION COMBINATIONS :
Voice files created by the PC base developing system are stored in the built-in EPROM of the
aP89682K/341K/170K/085K chip as a number of fixed length Voice Blocks. Voice Blocks are
then selected and grouped into Voice Groups for playback. Up to 1024 Voice Groups are allowed.
A Voice Blocks Table is used to store the information of combinations of Voice Blocks and then
group them together to form Voice Group.
Chip
aP89682K
aP89341K
aP89170K
aP89085K
Memory size
16M bits
8M bits
4M bits
2M bits
Max no. of Voice Block
2016
2016
2016
2016
Max. no. of Voice Group
1024
1024
1024
1024
Voice Length
682 sec
341 sec
170 sec
85 sec
(@ 6KHz 4-bit ADPCM)
Example of Voice Block Combination :
Assume here we have three voice files, they are “How are You?”, Sound Effect and Music. Each of the
voice file is divided into a number of fixed length Voice Block and stored into the memory.
Voice block :
B1 = “How”
B2 = ”are”
B3 = ”You”
B4 = Sound Effect
B5 = Music1
B6 = Music2
Voice Blocks are grouped together using Voice Table to form Voice Group for playback:
Group no.
Voice Group contents
Voice Table Entries
Group 1
“How are You?”
B1+B2+B3
Group 2
Sound Effect + “How are You?”
B4+ B1+B2+B3
Group 3
“How are You?” + Music1
B1+B2+B3+B5
Group 4
Music2
B6
 Voice Data Compression :
Voice File data is stored in the on-chip EPROM as either 4-bits ADPCM or 8-bits PCM/ ULAW format
or 16-bits PCM format. Voice data are stored as 16-bits PCM forma is without compression. The voice
playback quality is best. Voice data stored as 4-bits ADPCM or 8-bits PCM/ ULAW provide 4:2 data
compression to save memory space. But voice playback quality with be lower than 16-bits PCM format.



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