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Single power supply can operate from 2.4v through 5v. |
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The total voice duration is about 3, 6, 9, 12, 18, 24, 30, 42 seconds could be partitioned up to 32 voice sections .each voice section could have 4 playing_length , the longest one is the original voice+mute length . |
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Voice + mute length could up to 22 seconds ( 6k sample rate ) for each voice section . |
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One 255 voice-steps table ,could be partitioned up to 32 groups of voice-step .For each voice-step, could specify one length of one voice section and one of 5 levels playback speed andSTS1, STS2, STS3, STS4 enable options .playback speed : 1>4.3k ; 2>5k ; 3>6k ; 4>7.5k ; 5>10kHz .STS4,3,2,1 enable options : each with one control bit . ( dec to bin ; '0' -> enable , '1' -> disable ) |
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Three mask option trigger input mode : MATRIX , ALONE ( with mode selection ,priority and debounce )one mode control input 'MODE' , could be used as mode selection or STS4 . ( mask option ) |
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