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參數(shù)資料
| 型號： | LC78622NE |
| 廠商： | Sanyo Electric Co.,Ltd. |
| 英文描述： | Compact Disc Player DSP(用于CD播放器的8位DSP) |
| 中文描述： | 光碟機(jī)的DSP（用于光盤播放器的8位數(shù)字信號處理器） |
| 文件頁數(shù)： | 12/31頁 |
| 文件大?。?/td> | 338K |
| 代理商： | LC78622NE |
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No. 6015-12/31
LC78622NE
CLV three-value output
The CLV three-value output command allows the CLV to be controlled by a single pin.
Internal brake modes
— Issuing the internal brake-on (C5H) command sets the LC78622NE to internal brake mode. In this mode, the
disk deceleration state can be monitored from the WRQ pin when a brake command (06H) is executed.
— In this mode the disk deceleration state is determined by counting the EFM signal density in a single frame, and
when the EFM signal count falls under four, the CLV
–
pin is dropped to low. At the same time the WRQ signal,
which functions as a brake completion monitor, goes high. When the microprocessor detects a high level on the
WRQ signal, it should issue a STOP command to fully stop the disk. In internal brake continuous mode (CBH),
the CLV
–
pin high-level output braking operation continues even after the WRQ brake completion monitor
goes high.
Note that if errors occur in deceleration state determination due to noise in the EFM signal, the problem may be
rectified by changing the EFM signal count from four to eight with the internal brake control command (A3H).
— In TOFF output disabled mode (CDH), the TOFF pin is held low during internal brake operations. We
recommend using this feature, since it is effective at preventing incorrect detection at the disk mirror surface.
MSB
LSB
Command
RES = low
1 1 0 0 0 1 0 1
INTERNAL BRAKE ON
1 1 0 0 0 1 0 0
INTERNAL BRAKE OFF
G
G
1 0 1 0 0 0 1 1
INTERNAL BRAKE CONTROL
1 1 0 0 1 0 1 1
INTERNAL BRAKE CONTINUOUS MODE
1 1 0 0 1 0 1 0
RESET CONTINUOUS MODE
G
G
1 1 0 0 1 1 0 1
TON MODE DURING INTERNAL BRAKING
1 1 0 0 1 1 0 0
RESET TON MODE
G
G
MSB
LSB
Command
RES = low
1 0 1 1 0 1 0 0
CLV THREE VALUE OUTPUT
1 0 1 1 0 1 0 1
CLV TWO VALUE OUTPUT
(the scheme used by previous products)
G
G
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LC78624E | Compact Disc Player DSP(用于CD播放器的8位DSP) |
| LC78625E | SigmaDSP 28-/56-Bit Audio Processor with Two ADCs and Four DACs |
| LC78625 | SigmaDSP 28-/56-Bit Audio Processor with Two ADCs and Four DACs |
| LC78626KE | Compact Disc Player DSP(用于CD播放器的8位DSP) |
| LC78626 | 16-bit fixed point DSP with Flash |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LC78624E | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:Compact Disc Player DSP |
| LC78625 | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:Compact Disc Player DSP |
| LC78625E | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:Compact Disc Player DSP |
| LC78626 | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:DSP for Compact Disk Players |
| LC78626E | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:DSP for Compact Disk Players |
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