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參數(shù)資料
| 型號： | KB9223 |
| 廠商： | SAMSUNG SEMICONDUCTOR CO. LTD. |
| 英文描述： | RF AMP & SERVO SIGNAL PROCESSOR |
| 中文描述： | 射頻放大器 |
| 文件頁數(shù)： | 22/34頁 |
| 文件大?。?/td> | 614K |
| 代理商： | KB9223 |
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PRELIMINARY
RF AMP & SERVO SIGNAL PROCESSOR
22
KB9223 / KB9223-L
M/M-97-P006
1997. 10. 17
2.Servo Block
2.1 Focus Servo Block
When defect is "H"(the defect signal is detected), the focus servo loop is muting in case of focus phase
compensation. At this time, the focus error signal is outputted through the low pass filter formed by
connecting a capacitor(0.1uF) and a built-in 470K
resistor to the FDFCT pin(pin 60). Accordingly, the
focus error output is held at the error value just before defect error during defect occurring. The peak
frequency of focus loop phase compensation is at about 1.2KHz when the resistor connected to FSET
pin(pin 6) is 510K
, and it is inversely proportional to the resistor connected to the FSET pin. While the
focus search is operating, the FS4 switch is on and then the focus error signal is isolated, accordingly the
focus search signal is outputted by FEO pin(pin 48). When the FS2 switch is on(focus on), the focus
servo loop is on and the focus error signal from FE2 pin(pin 58) is outputted through the focus servo loop.
Figure 15. Focus servo block
58
-
+
60
28
27
Focus Phase
Compensation
26
47
-
+
-
+
-
+
-
+
3
3.6K
60K
FZCI
FE2
470K
DFCTI
20K
48K
FS4B
130K
FGD
FS3
46K
580K
FS3
4
40K
FS2B
FLB
FRCH
50K
10K
3.6K
FS1
92K
40K
FE-
FEO
VC
FSCMPO
48
FDFCT
PS
4 3
X1
X2
X3
X4
0 0
0 1
1 0
1 1
6
FSET
X1
X2
X3
X4
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| KB9223-L | RF AMP & SERVO SIGNAL PROCESSOR |
| KB9224 | VIDEO-CD 2ND GENERATION |
| KBA-20 | Tantalum Molded Capacitor; Capacitance: .68uF; Voltage: 25V; Case Size: 3.2x1.6 mm; Packaging: Tape & Reel |
| KBA-20_40 | Tantalum Molded Capacitor; Capacitance: 6.8uF; Voltage: 25V; Case Size: 5.8x2.3 mm; Packaging: Tape & Reel |
| KBA-40 | Surface Mount Frequency Doublers 1.6 to 4.8 GHz |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| KB9223-L | 制造商:SAMSUNG 制造商全稱:Samsung semiconductor 功能描述:RF AMP & SERVO SIGNAL PROCESSOR |
| KB9224 | 制造商:SAMSUNG 制造商全稱:Samsung semiconductor 功能描述:VIDEO-CD 2ND GENERATION |
| KB95 | 制造商:Ione 功能描述:Scorpius 95 104 Key PS/2 Keyboard with Trackball |
| KB9700 | 制造商:Alltrade Tools LLC 功能描述:25 PCE MET. SKT SET |
| KB9701 | 制造商:ALLIED TOOLS 功能描述:25PCS 1/2IN SQ DRIVE METRIC SOCKET SET |
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