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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)： | 23/34頁 |
| 文件大?。?/td> | 614K |
| 代理商： | KB9223 |
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PRELIMINARY
RF AMP & SERVO SIGNAL PROCESSOR
23
KB9223 / KB9223-L
M/M-97-P006
1997. 10. 17
2.2 Tracking Servo Block
During detection of defect, the tracking error signal is outputted through the tracking servo loop after
passing the low pass filter formed by connecting a capacitor(0.1uF) and a built-in 470K
resistor to the
TDFCT pin(pin57) in case of tracking phase compensation. The value of tracking gain up/down can be
controlled by TGU and TG2 pin. The peak frequency of tracking loop phase compensation, the dynamic
range and offset of opamp can be adjusted by changing the value of resistor connected to FSET pin
same as focus loop. In case of unstable status of actuator after jumping, the ON/OFF of tracking loop is
controlled by TM7 switch of break circuit.
After 10-track jumping, servo circuit gets out of the liner range and actuator's tracking becomes
occasionally unstable. Hence unnecessary jumping with many tracking error should be prevented.
Figure 16. Tracking servo block
-
+
53
57
61
62
TRACKING
PHASE
COMPENSATION
49
50
TE2
470K
TDFCT
680K
TGU
TG2
470K
20K
10K
110K
82K
680K
66PF
10K
90K
FSET
TE-
TG1
TG1
TM1
TG2
TM7
TM3
TM4
DFCTI
6
TEO
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| 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) |
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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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