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參數(shù)資料
| 型號： | CXD2585Q |
| 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 |
| 中文描述： | CD數(shù)字信號處理器的內(nèi)置數(shù)碼舵機 |
| 文件頁數(shù)： | 91/127頁 |
| 文件大?。?/td> | 962K |
| 代理商： | CXD2585Q |
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– 91 –
CXD2585Q
§ 5-8. TRK (Tracking) and SLD (Sled) Servo Control
The TRK and SLD servos are controlled by the 8-bit command $2X. (See Table 5-9.)
When the upper 4 bits of the serial data are 2 (Hex), TZC is output to the SENS pin.
Register
name
Command
D23 to D20
D19 to D16
TRACKING SERVO OFF
TRACKING SERVO ON
FORWARD TRACK JUMP
REVERSE TRACK JUMP
SLED SERVO OFF
SLED SERVO ON
FORWARD SLED MOVE
REVERSE SLED MOVE
0 0 1 0
TRACKING
MODE
2
Table 5-9.
TRK Servo
The TRK JUMP (track jump) level can be set with 6 bits (D13 to D8) of $36.
In addition, when the TRK servo is on and D17 of $1 is set to 1, the TRK servo filter switches to gain-up mode.
The filter also switches to gain-up mode when the LOCK signal goes low or when vibration is detected with the
anti-shock circuit (described hereafter) enabled.
The CXD2585Q has 2 types of gain-up filter structures in TRK gain-up mode which can be selected by setting
D16 of $1. (See Table 5-17.)
SLD Servo
The SLD MOV (sled move) output, composed of a basic value from 6 bits (D13 to D8) of $37, is determined by
multiplying this value by 1
×
, 2
×
, 3
×
, or 4
×
magnification set using D17 and D16 when D18 = D19 = 0 is set with
$3. (See Table 5-10.)
SLD MOV must be performed continuously for 50μs or more. In addition, if the LOCK input signal goes low
when the SLD servo is on, the SLD servo turns off.
Note)
When the LOCK signal is low, the TRK servo switches to gain-up mode and the SLD servo is turned off.
These operations are disabled by setting D6 (LKSW) of $38 to 1.
Register
name
Command
D23 to D20
D19 to D16
0 0 0 0
0 0 0 1
0 0 1 0
0 0 1 1
SLED KICK LEVEL (basic value
× ±
1)
SLED KICK LEVEL (basic value
× ±
2)
SLED KICK LEVEL (basic value
× ±
3)
SLED KICK LEVEL (basic value
× ±
4)
0 0 1 1
SELECT
3
Table 5-10.
: Don't care
0 0
0 1
1 0
1 1
0 0
0 1
1 0
1 1
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相關(guān)代理商/技術(shù)參數(shù) |
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|---|---|
| CXD2586R | 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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| 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 |
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