– 163 –
CXD3068Q
§ 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 CXD3068Q 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
Содержание PV420S
Страница 1: ...SERVICE MANUAL PV420S WWW BBK RU ...
Страница 72: ... 69 CXD3068Q Block Diagram ...
Страница 73: ... 70 CXD3068Q Pin Configuration ...
Страница 122: ... 119 CXD3068Q Timing Chart 1 3 ...
Страница 123: ... 120 CXD3068Q Timing Chart 1 4 ...
Страница 124: ... 121 CXD3068Q Timing Chart 1 5 ...
Страница 127: ... 124 CXD3068Q Timing Chart 1 16 CAV W mode EPWM 1 LPWR 0 Timing Chart 1 17 CAV W mode EPWM LPWR 1 ...
Страница 129: ... 126 CXD3068Q Timing Chart 2 1 ...
Страница 130: ... 127 CXD3068Q Block Diagram 2 2 ...
Страница 131: ... 128 CXD3068Q Timing Chart 2 3 ...
Страница 134: ... 131 CXD3068Q Timing Chart 2 6 ...
Страница 137: ... 134 CXD3068Q Fig 3 1 Disc Stop to Regular Playback in CLV W Mode CLV W Mode Fig 3 2 CLV W Mode Flow Chart ...
Страница 138: ... 135 CXD3068Q VCO C Mode Fig 3 3 Access Flow Chart Using VCO Control ...
Страница 140: ... 137 CXD3068Q Block Diagram 4 1 ...
Страница 143: ... 140 CXD3068Q Timing Chart 4 4 ...
Страница 147: ... 144 CXD3068Q Fig 4 6 a Auto Focus Flow Chart Fig 4 6 b Auto Focus Timing Chart ...
Страница 148: ... 145 CXD3068Q Fig 4 7 a 1 Track Jump Flow Chart Fig 4 7 b 1 Track Jump Timing Chart ...
Страница 149: ... 146 CXD3068Q Fig 4 8 a 10 Track Jump Flow Chart Fig 4 8 b 10 Track Jump Timing Chart ...
Страница 150: ... 147 CXD3068Q Fig 4 9 a 2N Track Jump Flow Chart Fig 4 9 b 2N Track Jump Timing Chart ...
Страница 151: ... 148 CXD3068Q Fig 4 10 a Fine Search Flow Chart Fig 4 10 b Fine Search Timing Chart ...
Страница 152: ... 149 CXD3068Q Fig 4 11 a M Track Move Flow Chart Fig 4 11 b M Track Move Timing Chart ...
Страница 157: ... 154 CXD3068Q Fig 4 15 CD TEXT Data Timing Chart ...
Страница 162: ... 159 CXD3068Q Fig 5 3a Fig 5 3b ...
Страница 176: ... 173 CXD3068Q Fig 5 26a Servo HighBooster Characteristics FCS TRK MCK 128Fs HBST1 0 HBST1 1 HBST0 0 HBST1 1 HBST0 1 ...
Страница 177: ... 174 CXD3068Q Fig 5 26b Servo LowBooster1 Characteristics FCS TRK MCK 128Fs LB1S1 0 LB1S1 1 LB1S0 0 LB1S1 1 LB1S0 1 ...
Страница 178: ... 175 CXD3068Q Fig 5 26c Servo LowBooster2 Characteristics FCS TRK MCK 128Fs LB2S1 0 LB2S1 1 LB2S0 0 LB2S1 1 LB2S0 1 ...
Страница 196: ... 193 CXD3068Q Description of Data Readout ...
Страница 200: ... 197 CXD3068Q ...
Страница 201: ... 198 CXD3068Q ...
Страница 202: ... 199 CXD3068Q ...
Страница 203: ... 200 CXD3068Q SLD Servo fs 345Hz Note Set the MSB bit of the K02 and K04 coefficients to 0 HPTZC Auto Gain fs 88 2kHz ...
Страница 207: ... 204 CXD3068Q Package Outline Unit mm ...
Страница 208: ...This data sheet has been made from recycled paper to help protect the environment 205 ...