CXD2510Q
§3-7. Digital CLV
Fig. 3-13 shows the block diagram. Digital CLV makes PWM output in CLVS, CLVP and other modes with
the MDS error or MDP error signal sampling frequency increased to 130kHz during normal-speed operation.
In addition, the digital spindle servo can set the gain.
Digital CLV
CLVS U/D
MDS Error
Measure
MDP Error
Measure
Gain
CLVS
Over Sampling
Filter-1
2/1 MUX
CLV P/S
Gain
MDS
Gain
MDP
CLV P
CLV S
1/2
Mux
Gain
DCLV
CLV-P/S
Over Sampling
Filter-2
Noise Shape
Modulation
KICK, BRAKE STOP
MDP
MDS
Mode Select
DCLVMD
CLVS U/D: Up/down signal from the CLV-S servo.
MDS error: Frequency error for CLV-P servo.
MDP error: Phase error for CLV-P servo.
Fig. 3-13. Block Diagram
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SONY [ SONY CORPORATION ]
