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參數(shù)資料
| 型號： | KS9284 |
| 廠商： | SAMSUNG SEMICONDUCTOR CO. LTD. |
| 元件分類： | 數(shù)字信號處理 |
| 英文描述： | Digital Signal Processor(數(shù)字信號處理器) |
| 中文描述： | 數(shù)字信號處理器（數(shù)字信號處理器） |
| 文件頁數(shù)： | 21/25頁 |
| 文件大?。?/td> | 112K |
| 代理商： | KS9284 |
KS9284
DIGITAL SIGNAL PROCESSOR
z
Channel status bit: The upper 4-bit of subcode Q indicate the number of channel, pre-em-phasis copy
and CDP category, etc.
Fig 17. Timing chart of channel status data output
{
Parity bit: Making even parity
7. CLV SERVO BLOCK
The CNTL-C register is selected to control CLV (Constant Linear Velocity) servo by the data inputted from micom. In
the CNTL-C register, the CLV servo action mode is appointed by the data inputted from micom to control the spindle
motor. In case of double - speed setting, the CNTL-C register has to be selected after CNTL-D register sets, so it is
able to detect / (Pw
≥
64) signal from /ISTAT terminal.
1) Forward Mode
The status of the related output terminals are as follows.
2) Reverse Mode
The status of the related output terminals are as follows.
3) Speed - Mode
The speed-mode is the mode for the rough control of a spindle motor when a track is jumping or EFM phase is unlocked.
If a period of VCO is “T”, the pulse width of frame sync is “22T”.
In case that the signal detected from EFM signal exceed “22T” by noise on the disc.... etc., it must be removed.
If not, the right frame sync can’t be detected. In this case, the pulse width of EFM signal is detected by peak
and bottom hold clock. the peak hold clock is XTFR/2 or XTR/4, and the bottom hold clock is XTFR/16 or XTFR/32.
The detected value is used for syncronized frame signal.
If synchronized frame signal is less than 21T, the SMDP terminal outputs ‘L’, equal to 22T, output ‘HiZ’, and more than
23T, output ‘H’.
If the gain signal of CNTL-W register is ‘L’, the output of SMDP terminal is reduced up to - 12dB. If it is ‘H’, there is no
reduction.
SMDP
SMSD
SMEF
SMON
H
Hi-Z
L
H
SMDP
SMSD
SMEF
SMON
L
Hi-Z
L
H
S0S1
PBFR
SQOT
H
ID0
ID1
COPY EMPH
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相關(guān)代理商/技術(shù)參數(shù) |
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|---|---|
| KS9286 | 制造商:SAMSUNG 制造商全稱:Samsung semiconductor 功能描述:DIGITAL SIGNAL PROCESSOR for CDP |
| KS9286B | 制造商:SAMSUNG 制造商全稱:Samsung semiconductor 功能描述:DIGITAL SIGNAL PROCESSOR for CDP |
| KS9286B-L | 制造商:SAMSUNG 制造商全稱:Samsung semiconductor 功能描述:DIGITAL SIGNAL PROCESSOR for CDP |
| KS9287 | 制造商:SAMSUNG 制造商全稱:Samsung semiconductor 功能描述:DIGITAL SIGNAL PROCESSOR |
| KS94-1000E | 制造商:Austerlitz Electronic 功能描述: |
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