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UM66TXXLK-T92-B Datasheet(PDF) 3 Page - Unisonic Technologies |
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UM66TXXLK-T92-B Datasheet(HTML) 3 Page - Unisonic Technologies |
3 / 4 page UM66TXXL CMOS IC UNISONICTECHNOLOGIESCO.,LTD 3 of 4 www.unisonic.com.tw QW-R502-042,F FUNCTIONAL DESCRIPTION OSCILLATOR CIRCUIT The oscillator frequency is used as a time for tone and beat generators. Its accuracy affects the quality of the music. TONE GENERATOR Tone Frequencies are oscillator frequencies-M, where m is any even number from 64 to 256. Within a melody 14C scales can be selected including Pause code and End code. The tone generator is a programmed divider, The Range of Scales is from “C4” to “C6” and range of frequency varies from 258Hz to 23768Hz. RHYTHM GENERATOR The rhythm generator is also programmed dividers. It contain 15 available rhythms as follows:1/4,1/2,3/4,1,1-1/4,1-1/2,1-/3/4,2,2-1/4,2-1/2,2-/3/4,3,3-1/4,3-1/2,3-/3/4.Four rhythms can be selected from these. MELODY ROM The Mask Rom can memorize 64 notes with 6 bit.4 bits are used for controlling the scale code and 2 bits are used for controlling the rhythm code. TEMPO GENERATOR There are 15 available tempos in the UTC UM66T series. The 15 tempos are:128,137,148,160,175,192,213, 240 , 274, 320,480,640,960,1920 J/minute. |
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