參數(shù)資料
型號(hào)： LC78622E
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(pán)播放器的8位數(shù)字信號(hào)處理器）
文件頁(yè)數(shù)： 11/29頁(yè)
文件大?。?/td> 378K
代理商： LC78622E
No. 5480-11/29
LC78622E
CLV mode
In CLV mode the LC78622E detects the disk speed from the HF signal and provides proper linear speed using
several different control schemes by switching the DSP internal modes. The PWM reference period corresponds to
a frequency of 7.35 kHz. The V/P pin outputs a high level during rough servo and a low level during phase control.
Rough servo gain switching
For 8 cm disks, the rough servo mode CLV control gain can be set about 8.5 dB lower than the gain used for 12 cm
disks.
Phase control gain switching
The phase control gain can be changed by changing the divisor used by the dividers in the stage immediately
preceding the phase comparator.
Internal mode
CLV
+
CLV
–
V/P
Rough servo (velocity too low)
High
Low
High
Rough servo (velocity too high)
Low
High
High
Phase control (PCK locked)
PWM
PWM
Low
MSB
LSB
Command
RES= low
1 0 1 1 0 0 0 1
CLV PHASE COMPARATOR DIVISOR: 1/2
1 0 1 1 0 0 1 0
CLV PHASE COMPARATOR DIVISOR: 1/4
1 0 1 1 0 0 1 1
CLV PHASE COMPARATOR DIVISOR: 1/8
1 0 1 1 0 0 0 0
NO CLV PHASE COMPARATOR DIVISOR USED
G
G
MSB
LSB
Command
RES = low
1 0 1 0 1 0 0 0
DISC 8 SET
1 0 1 0 1 0 0 1
DISC 12 SET
G
G
相關(guān)PDF資料
PDF描述
LC78622NE Compact Disc Player DSP(用于CD播放器的8位DSP)
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)
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LC78622NE 制造商:SANYO 制造商全稱(chēng):Sanyo Semicon Device 功能描述:Compact Disc Player DSP
LC78624E 制造商:SANYO 制造商全稱(chēng):Sanyo Semicon Device 功能描述:Compact Disc Player DSP
LC78625 制造商:SANYO 制造商全稱(chēng):Sanyo Semicon Device 功能描述:Compact Disc Player DSP
LC78625E 制造商:SANYO 制造商全稱(chēng):Sanyo Semicon Device 功能描述:Compact Disc Player DSP
LC78626 制造商:SANYO 制造商全稱(chēng):Sanyo Semicon Device 功能描述:DSP for Compact Disk Players
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