参数资料
型号: YMU757
元件分类: 音频合成
英文描述: TONE/MUSIC SYNTHESIZER, PDSO20
封装: TSSOP-20
文件页数: 13/42页
文件大小: 701K
代理商: YMU757
YMU757
#
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20-
Power-down control division diagram
Asforthe pow er-dow n,itispossible to divide an inside function separately and to controlit.
The pow er-dow n iscontrolled by Index 38h.
Explanation of each bit
DP
Itisthe bitto make the pow er-dow n w hole ofthe digitaldepartment.
Because clock to move inside stopsconsum ption electric currentofthe digitalpartcan be restrained in minimum.
Data on FIFO are cleared though contentsofa registerare held.
AP1
Itisthe bitthatthe pow er-dow n a VREF circuitdecline.
IfAP1 issetto “1”,the w hole ofthe analog partstops.Because an analog centervoltage ismade by VREF circuit.
AP2
Itis the bitto make pow er-dow n FM volum e part,EQ circuit,speaker volum e,and non-reversalam plifier side of
speakeroutputpart.
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