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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)： | 19/34頁 |
| 文件大?。?/td> | 614K |
| 代理商： | KB9223 |
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PRELIMINARY
RF AMP & SERVO SIGNAL PROCESSOR
19
KB9223 / KB9223-L
M/M-97-P006
1997. 10. 17
1.5 Mirror Circuit
IRF signal is amplified by the mirror amp, and the peak and bottom component of amplified signal are
detected by peak and bottom hold circuit. The peak hold circuit covers traverse signal of up to 100KHz
component and bottom hold circuit capable of covering the envelope frequency of disc rotation. The time
constant for the mirror hold must be sufficiently larger than that of the traverse signal.
Figure 8. Mirror Circuit
1.6 EFM Comparator
The EFM comparator converts a RF signal into a binary signal.
Beacuse the asymmetry generated due to variations in disc manufacturing can not be eliminated by the
AC coupling alone, this circuit uses to control reference voltage of EFM comparator for eliminating
asymmetry.
Figure 9. EFM Comparator & asymmetry circuit
75
-
+
1
IRF
Peak and
Bottom
Hold
-
+
39
-
+
-
+
17K
38K
19K
2.5K
96K
17K
1.5K
MIRROR
MCP
77
1
RFI
39
-
+
ASY
EFM
-
+
-
+
40K
19K
100K
100K
20K
85K
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| KB9223-L | RF AMP & SERVO SIGNAL PROCESSOR |
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| 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 |
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| 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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