參數(shù)資料
型號(hào)： S1L9225
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(yè)數(shù)： 58/60頁(yè)
文件大?。?/td> 623K
代理商： S1L9225
S1L9225X
RF AMP & SERVO SIGNAL PROCESSOR
58
Tracking Servo
The tracking servo phase compensate the tracking servo loop and differentiates the tracking error signal, after
which it outputs the signal through the servo loop. TGU exchanges the tracking gain up/down time constant.
As in the focus loop, the phase compensation peak frequency is varied by the Fset terminal. If the resistance
connected to the FSET terminal changes, the OP Amp dynamic range offeset changes also.
41
09
53
TEIO
FSET
90K
TEO
Tracking
Phase
Compensation
16
TGU
TLPFI
DFCTI
680K
+
-
40 TEM
10K
TM7
68P
F
680K
TG1B
10K
110K
82K
TM1
470K
TG2B
TM4
TM3
The TM7 switch is a brake switch which turns the tracking loop on/off when the actuator is unstable after a jump.
After the servo jumps 10 tracks, the servo circuit leaves the linear range and the actuator sometimes pursues the
unstable track, preventing unnecessary jumps from undesired tracking errors. As the terminal which controls the
tracking servo loop's high frequency gain, the Tgu terminal controls the desired frequency range of the gain
through the external cap.
相關(guān)PDF資料
PDF描述
S1L9225X RF AMP & SERVO SIGNAL PROCESSOR
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S1L9225X 制造商:SAMSUNG 制造商全稱:Samsung semiconductor 功能描述:RF AMP & SERVO SIGNAL PROCESSOR
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S1L9226X01-Q0R0 制造商:SAMSUNG 制造商全稱:Samsung semiconductor 功能描述:RF AMP & SERVO SIGNAL PROCESSOR
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