cxd2548r Sony Electronics, cxd2548r Datasheet - Page 82
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cxd2548r
Manufacturer Part Number
cxd2548r
Description
Cd Digital Signal Processor With Built-in Digital Servo And Dac
Manufacturer
Sony Electronics
Datasheet
1.CXD2548R.pdf
(113 pages)
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§4-7. FCS Servo and FCS Search (Focus Search)
The FCS servo is controlled by the 8-bit serial command $0X. (See Table 4-2.)
FCS Search
FCS search is required in the course of turning on the FCS servo.
Fig. 4-4 shows the signals for sending commands $00
Fig. 4-5 shows the signals for sending $08 (FCS on) after that.
Register name Command D23 to D20 D19 to D16
FCSDRV
RF
FOK
FE
FZC
0
0
0
$00 $02 $03
FZC comparator level
FOCUS
CONTROL
Fig. 4-4.
0 0 0 0
1 0
1 1
0
0
0
0
0
1
1 0
1 1
Table 4-2.
– 82 –
FOCUS SERVO ON (FOCUS GAIN NORMAL)
FOCUS SERVO ON (FOCUS GAIN DOWN)
FOCUS SERVO OFF, 0V OUT
FOCUS SERVO OFF, FOCUS SEARCH VOLTAGE OUT
FOCUS SEARCH VOLTAGE DOWN
FOCUS SEARCH VOLTAGE UP
$02
FCSDRV
RF
FOK
FE
FZC
$03 and performing only FCS search.
0
$00 $02 $03
Fig. 4-5.
: Don't care
$08
CXD2548R
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