參數(shù)資料
型號: CXD2585Q
廠商: Sony Corporation
元件分類: 數(shù)字信號處理
英文描述: CD Digital Signal Processor with Built-in Digital Servo
中文描述: CD數(shù)字信號處理器的內(nèi)置數(shù)碼舵機
文件頁數(shù): 78/127頁
文件大?。?/td> 962K
代理商: CXD2585Q
– 78 –
CXD2585Q
§ 4-7. Digital CLV
Fig. 4-12 shows the block diagram. Digital CLV outputs MDS error and MDP error signals with PWM, with the
sampling frequency increased up to 130kHz during normal-speed playback in CLVS, CLVP and other modes.
In addition, the digital spindle servo gain is variable.
Fig. 4-12. Block Diagram
CLVS U/D:
Up/down signal from CLVS servo
MDS error:
Frequency error for CLVP servo
MDP error:
Phase error for CLVP servo
PWMI:
Spindle drive signal from the microcomputer for CAV servo
MDP
Digital CLV
CLVS U/D
MDS Error
MDP Error
CLV P/S
Measure
Measure
2/1 MUX
Over Sampling
Filter-1
Gain
MDS
1/2
Mux
CLV P/S
Over Sampling
Filter-2
Noise Shape
Modulation
KICK, BRAKE, STOP
Mode Select
Gain
DCLV
Gain
MDP
LPWR
PWMI
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