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CXD3068Q
$3C (preset: $3C 00 80)
D15
D14
D13
D12
D11
D10
D9
D8
D7
D6
D5
D4
D3
D2
D1
D0
COSS COTS CETZ CETF COT2 COT1 MOT2
0
BTS1 BTS0 MRC1 MRC0
0
0
0
0
COSS, COTS: This selects the TZC signal used when generating the COUT signal.
Preset = HPTZC.
STZC is the TZC generated by sampling the TE signal at 700kHz. (when MCK = 128Fs)
DTZC is the delayed phase STZC. (The delay time can be selected by D14 of $36.)
HPTZC is the fast phase TZC passed through a HPF with a cut-off frequency of 1kHz.
See § 5-13.
CETZ:
The input from the TE pin normally enters the TRK filter and is used to generate the TZC
signal. However, the input from the CE pin can also be used. This function is for the center
error servo.
When 0, the TZC signal is generated by using the signal input to the TE pin.
When 1, the TZC signal is generated by using the signal input to the CE pin.
CETF:
When 0, the signal input to the TE pin is input to the TRK servo filter.
When 1, the signal input to the CE pin is input to the TRK servo filter.
These commands output the TZC signal.
COT2, COT1: This outputs the TZC signal from the COUT pin.
COSS
1
0
0
—
0
1
STZC
HPTZC
DTZC
COTS
TZC
∗
: preset, —: don't care
∗
BTS1
0
0
1
1
0
1
0
1
1
2
4
8
BTS0
Number of count-up steps per cycle
MRC1
0
0
1
1
0
1
0
1
5.669
∗
11.338
22.675
45.351
MRC0
Setting time [µs]
∗
: preset (when MCK = 128Fs)
∗
MOT2:
The STZC signal is output from the MIRR pin by setting MOT2 to 1.
These commands set the MIRR signal generation circuit.
BTS1, BTS0:
This sets the count-up speed for the bottom hold value of the MIRR generation circuit.
The time per step is approximately 708ns (when MCK = 128Fs). The preset value is BTS1 = 1,
BTS0 = 0 like the CXD2586R. This is valid only when BTF of $3B is 0.
MRC1, MRC0: This sets the minimum pulse width for masking the MIRR signal of the MIRR generation circuit.
As noted in § 5-9, the MIRR signal is generated by comparing the waveform obtained by
subtracting the bottom hold value from the peak hold value with the MIRR comparator level.
Strictly speaking, however, for MIRR to become high, these levels must be compared
continuously for a certain time. This sets that time.
The preset value is MRC1 = 0, MRC0 = 0 like the CXD2586R.
COT2
1
0
0
—
1
0
STZC
HPTZC
COUT
COT1
COUT pin output
∗
: preset, —: don't care
∗
Summary of Contents for PV420S
Page 1: ...SERVICE MANUAL PV420S WWW BBK RU ...
Page 72: ... 69 CXD3068Q Block Diagram ...
Page 73: ... 70 CXD3068Q Pin Configuration ...
Page 122: ... 119 CXD3068Q Timing Chart 1 3 ...
Page 123: ... 120 CXD3068Q Timing Chart 1 4 ...
Page 124: ... 121 CXD3068Q Timing Chart 1 5 ...
Page 129: ... 126 CXD3068Q Timing Chart 2 1 ...
Page 130: ... 127 CXD3068Q Block Diagram 2 2 ...
Page 131: ... 128 CXD3068Q Timing Chart 2 3 ...
Page 134: ... 131 CXD3068Q Timing Chart 2 6 ...
Page 138: ... 135 CXD3068Q VCO C Mode Fig 3 3 Access Flow Chart Using VCO Control ...
Page 140: ... 137 CXD3068Q Block Diagram 4 1 ...
Page 143: ... 140 CXD3068Q Timing Chart 4 4 ...
Page 147: ... 144 CXD3068Q Fig 4 6 a Auto Focus Flow Chart Fig 4 6 b Auto Focus Timing Chart ...
Page 148: ... 145 CXD3068Q Fig 4 7 a 1 Track Jump Flow Chart Fig 4 7 b 1 Track Jump Timing Chart ...
Page 149: ... 146 CXD3068Q Fig 4 8 a 10 Track Jump Flow Chart Fig 4 8 b 10 Track Jump Timing Chart ...
Page 150: ... 147 CXD3068Q Fig 4 9 a 2N Track Jump Flow Chart Fig 4 9 b 2N Track Jump Timing Chart ...
Page 151: ... 148 CXD3068Q Fig 4 10 a Fine Search Flow Chart Fig 4 10 b Fine Search Timing Chart ...
Page 152: ... 149 CXD3068Q Fig 4 11 a M Track Move Flow Chart Fig 4 11 b M Track Move Timing Chart ...
Page 157: ... 154 CXD3068Q Fig 4 15 CD TEXT Data Timing Chart ...
Page 162: ... 159 CXD3068Q Fig 5 3a Fig 5 3b ...
Page 196: ... 193 CXD3068Q Description of Data Readout ...
Page 200: ... 197 CXD3068Q ...
Page 201: ... 198 CXD3068Q ...
Page 202: ... 199 CXD3068Q ...
Page 207: ... 204 CXD3068Q Package Outline Unit mm ...
Page 208: ...This data sheet has been made from recycled paper to help protect the environment 205 ...