參數(shù)資料
型號(hào): CXD2548R
廠(chǎng)商: Sony Corporation
元件分類(lèi): 數(shù)字信號(hào)處理
英文描述: CD Digital Signal Processor with Built-in Digital Servo and DAC
中文描述: CD數(shù)字信號(hào)處理器,具有內(nèi)置數(shù)字伺服和DAC
文件頁(yè)數(shù): 70/113頁(yè)
文件大?。?/td> 1286K
代理商: CXD2548R
– 70 –
CXD2548R
3-9. Digital CLV
Fig. 3-11 shows the block diagram. Digital CLV outputs MDS error and MDP error with PWM, with sampling
frequency increased up to 130Hz during normal-speed playback in CLVS, CLVP and other modes.
In addition, the digital spindle servo gain is variable.
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
MDS
Mode Select
Gain
MDP
DCLVMD, LPWR
PWMI
Fig. 3-11. 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
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