參數(shù)資料
型號(hào)： LC78681E
廠商： Sanyo Electric Co.,Ltd.
元件分類： 數(shù)字信號(hào)處理
英文描述： Digital Signal Processor for Compact Disc Players
中文描述： 數(shù)字信號(hào)處理器的光盤播放機(jī)
文件頁(yè)數(shù)： 19/23頁(yè)
文件大小： 262K
代理商： LC78681E
Output for CD-ROM (pin 39: CK2, pin 37: LRSY, pin 40: ROMOUT: pin 42: C2F and pin 41: C2FCLK)
Data from the ROMOUT pin which is synchronized with the LRSY signal is output in MSB-first format. Because this
data has not been processed by either the interpolation, previous-value hold, or digital filtering circuits, it is suitable for
CD-ROM IC input. CK2 is a 2.1168 MHz clock, and data is output on its rising edge. C2F flags 8-bit units of data, and
is synchronized to C2FCLK.
LC8951 and LC78681 Interface
Digital Audio Out Circuit (pin 43: DOUT)
This is the output pin for the digital audio interface, with output in EIAJ format. The signal is output after interpolation
and muting. This output pin has a built-in driver, and can drive a transistor directly.
The digital out pin can be fixed low by issuing the DOUT OFF command.
The UBIT data in the DOUT data can be fixed at 0 by issuing the UBIT OFF command.
Control Pin (pin 60: CONT)
The CONT pin can be set high by issuing the CONT Set command.
Crystal Oscillator (pin 63: X
IN
and pin 64: X
OUT
)
No. 4521-19/23
LC78681E
MSB
LSB
Command
RES = low
0 1 0 0 0 0 1 0
DOUT ON
0 1 0 0 0 0 1 1
DOUT OFF
0 1 0 0 0 0 0 0
UBIT ON
0 1 0 0 0 0 0 1
UBIT OFF
MSB
LSB
Command
RES = low
1 0 0 0 1 1 1 0
OSC ON
1 0 0 0 1 1 0 1
OSC OFF
1 1 0 0 0 0 0 1
Double-speed mode
1 1 0 0 0 0 1 0
Normal mode
0 1 1 0 0 0 0 0
VCO 8 M
0 1 1 0 0 0 0 1
VCO 16 M
MSB
LSB
Command
RES = low
0 0 0 0 1 1 1 0
CONT set
Low
1 0 0 0 1 0 1 1
CONT and CD-ROM XA Reset
相關(guān)PDF資料
PDF描述
LC78681KE-L Digital Signal Processor for Compact Disc Players
LC78681KE Digital Signal Processor for Compact Disc Players
LC78684E MP3 Decoder for Compact Disc Players
LC7868E Digital Signal Processor for Compact Disc Players
LC7868KE Digital Signal Processor for Compact Disc Players
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LC78681KE 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:Digital Signal Processor for Compact Disc Players
LC78681KE-L 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:Digital Signal Processor for Compact Disc Players
LC78684E 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:MP3 Decoder for Compact Disc Players
LC7868E 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:Digital Signal Processor for Compact Disc Players
LC7868KE 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:Digital Signal Processor for Compact Disc Players
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