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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)： | 18/34頁 |
| 文件大?。?/td> | 614K |
| 代理商： | KB9223 |
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PRELIMINARY
RF AMP & SERVO SIGNAL PROCESSOR
18
KB9223 / KB9223-L
M/M-97-P006
1997. 10. 17
1.3 Tracking Error Amp
The optical currents detected from the side photo diode (E and F) pf pick-up are inputted to the E and F
pin and converted into voltage signals by E I-V and F I-V amp. The output of tracking error amp
generates the difference between E I-V AMP and F I-V AMP voltage output.
The E-F balance can be adjusted by modifying the gain of E I-V AMP, and the tracking gain
can be adjusted automatically by controlling the peak voltage at pin TE2 by micom program.
Figure 6. Tracking error amp circuit
1.4 Focus OK Circuit
The FOK is the output. The focus OK circuit generates a timing window to enable focus servo operation
from focus search status. When the difference of the RFO (pin74)signal and DC coupled signal
IRF(pin75) are above the predefined voltage the Focus OK circuit output (pin40) becomes active(High
output). The predefined voltage is -0.39V
Figure 7. Focus OK circuit
67
-
+
68
79
I-V AMP
I-V AMP
54
55
Balance
Window Comp
F
E
EI
GAGAIN < 3 : 0 >
BAL < 4 : 0 >
TE1
LPFT
To ISTAT
To TRCNT
1
7
2
1
5
2
1
1
7
3
1
-
53
TE2
Gain
Window Comp
To ISTAT
74
75
-
+
-
+
40
RFO
IRF
FOK
40K
40K
40K
57K
90K
VC+0.625V
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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