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参数资料
| 型号： | LC78681E |
| 元件分类： | 消费家电 |
| 英文描述： | SPECIALTY CONSUMER CIRCUIT, PQFP64 |
| 封装： | QFP-64 |
| 文件页数： | 11/23页 |
| 文件大小： | 241K |
| 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: XIN and pin 64: XOUT)
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
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相关代理商/技术参数 |
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| LC78681KE | 制造商:SANYO 制造商全称:Sanyo Semicon Device 功能描述:Digital Signal Processor for Compact Disc Players |
| LC78681KE-L | 制造商:SANYO 制造商全称:Sanyo Semicon Device 功能描述:Digital Signal Processor for Compact Disc Players |
| LC78684E | 制造商:SANYO 制造商全称:Sanyo Semicon Device 功能描述:MP3 Decoder for Compact Disc Players |
| LC7868E | 制造商:SANYO 制造商全称:Sanyo Semicon Device 功能描述:Digital Signal Processor for Compact Disc Players |
| LC7868KE | 制造商:SANYO 制造商全称:Sanyo Semicon Device 功能描述:Digital Signal Processor for Compact Disc Players |
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