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CXD3003 Datasheet(PDF) 101 Page - Sony Corporation |
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CXD3003 Datasheet(HTML) 101 Page - Sony Corporation |
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101 / 137 page  – 101 – CXD3003R §5-7. FCS Servo and FCS Search (Focus Search) The FCS servo is controlled by the 8-bit serial command $0X. (See Table 5-6.) Register name Command D23 to D20 D19 to D16 1 0 ∗ ∗ 1 1 ∗ ∗ 0 ∗ 0 ∗ 0 ∗ 1 ∗ 0 ∗ 1 0 0 ∗ 1 1 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 0 0 0 0 FOCUS CONTROL 0 Table 5-6. FCS Search FCS search is required in the course of turning on the FCS servo. Fig. 5-7 shows the signals for sending commands $00 → $02 → $03 and performing only FCS search operation. Fig. 5-8 shows the signals for sending $08 (FCS on) after that. FCSDRV RF FOK FE FZC FZC comparator level $00 $02 $03 0 0 FCSDRV RF FOK FE FZC $00 $02 $03 0 $08 Fig. 5-7. Fig. 5-8. ∗: Don’t care |
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