參數(shù)資料
型號： CXD2586R
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 and DAC(CD數(shù)字信號處理器（內(nèi)置數(shù)字伺服系統(tǒng)和D/A轉(zhuǎn)換器）)
中文描述： CD數(shù)字信號處理器），配有數(shù)字式伺服和DAC（光盤數(shù)字信號處理器（內(nèi)置數(shù)字伺服系統(tǒng)和的D / A轉(zhuǎn)換器）
文件頁數(shù)： 74/127頁
文件大小： 1694K
代理商： CXD2586R
– 74 –
CXD2586R/-1
2N-track jump
When $4C ($4D for REV) is received from the CPU, a FWD (REV) 2N-track jump is performed in
accordance with Fig. 4-11. The track jump count "N" is set in register 7. Although N can be set to 2
16
tracks,
note that the setting is actually limited by the actuator. COUT is used for counting the number of jumps
when N is less than 16, and MIRR is used when N is 16 or more.
Although the 2N-track jump basically follows the same sequence as the 10-track jump, the one difference is
that after the tracking servo is turned on, the sled continues to move only for "D", set in register 6.
Fine search
When $44 ($45 for REV) is received from the CPU, a FWD (REV) fine search (N-track jump) is performed
in accordance with Fig. 4-12. The differences from a 2N-track jump are a higher precision jump achieved by
controlling the traverse speed and a longer distance jump achieved by controlling the sled. The track jump
count is set in register 7. N can be set to 2
16
tracks. After kicking the actuator and sled, the traverse speed
is controlled based on the overflow G. Set kick D and F in register 6 and overflow G in register 5. Also, sled
speed control during traverse can be turned off by causing COMP to fall. Set the number of tracks during
which COMP falls in register B. After N tracks have been counted through COUT, the brake is applied to
the actuator and sled. (This is performed by turning on the tracking servo for the actuator, and by kicking
the sled in the opposite direction during the time for kick D set in register 6.) Then, the tracking and sled
servos are turned on. Set overflow G to the speed required to slow up just before the track jump terminates.
(The speed should be such that it will come on-track when the tracking servo turns on at the termination of
the track jump.) For example, set the target track count N-
α
for the traverse monitor counter which is set in
register B, and COMP will be monitored. When the falling edge of this COMP is detected, overflow G can
be reset.
M track move
When $4E ($4F for REV) is received from the CPU, a FWD (REV) M track move is performed in
accordance with Fig. 4-13. M can be set to 2
16
tracks. COUT is used for counting the number of moves
when M is less than 16, and MIRR is used when M is 16 or more. The M track move is executed only by
moving the sled, and is therefore suited for moving across several thousand to several ten-thousand tracks.
In addition, the track and sled servo are turned off after M tracks have been counted through COUT or
MIRR unlike for the other jumps. Transfer $25 after the actuator is stabled.
相關(guān)PDF資料
PDF描述
CXD2586R-1 CD Digital Signal Processor with Built-in Digital Servo and DAC
CXD2587 RESISTOR,MIL-PRF-39007/9
CXD2587Q CD Digital Signal Processor with Built-in Digital Servo and DAC
CXD2588Q RESISTOR,MIL-PRF-39007/9
CXD2588R CD Digital Signal Processor with Built-in Digital Servo and DAC
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
CXD2586R/-1 制造商:未知廠家 制造商全稱:未知廠家 功能描述:CD-Player Processor/Controller
CXD2586R-1 制造商:SONY 制造商全稱:Sony Corporation 功能描述:CD Digital Signal Processor with Built-in Digital Servo and DAC
CXD2587 制造商:SONY 制造商全稱:Sony Corporation 功能描述:CD Digital Signal Processor with Built-in Digital Servo and DAC
CXD2587Q 制造商:SONY 制造商全稱:Sony Corporation 功能描述:CD Digital Signal Processor with Built-in Digital Servo and DAC
CXD2588Q 制造商:SONY 制造商全稱:Sony Corporation 功能描述:CD Digital Signal Processor with Built-in Digital Servo and DAC
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