參數(shù)資料
型號: KB9224
廠商: SAMSUNG SEMICONDUCTOR CO. LTD.
英文描述: VIDEO-CD 2ND GENERATION
中文描述: 視頻-環(huán)糊精第二代
文件頁數(shù): 49/55頁
文件大?。?/td> 450K
代理商: KB9224
VIDEO-CD 2ND GENERATION
KB9224
49
within Disc tracks, H between tracks, and H when a defect above 1.4 ms is detected.
EFM COMPARATOR
The EFM Comparator makes the Rf signal into a secondary signal. The Asymmetry generated by a fault during
Disc production cannot be eliminated by only AC coupling, so control the standard voltage of the EFM Comparator
to eliminate it.
DEFECT CIRCUIT
After Rfo signal inversion, Bottom Hold is carried out using only , , 2 . Except, the Bottom Hold of Holds the
coupling level just before the coupling. Differentiate this with the Coupling, then Level Shift it. Compare the signals
38 K
-
+
IRF
17 K
19 K
Peak and
Bottom Hold
80 k
-
+
-
+
-
+
17 K
96 K
1.5 K
MCP
8
39
MIRROR
80
-
+
40 K
X5
RF envelope detect and
asymmetry / envelope DC
compensation and slice AC level
summing system
Compensation Asy. DC
ASY
33
EFM2
32
EFM
31
17
16
15
3
ENC
ENVO
ENVR
RFI
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