- 您現(xiàn)在的位置：買賣IC網 > PDF目錄365377 > S1L9225X (SAMSUNG SEMICONDUCTOR CO. LTD.) RF AMP & SERVO SIGNAL PROCESSOR PDF資料下載
參數資料
| 型號： | S1L9225X |
| 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： | 40/60頁 |
| 文件大?。?/td> | 623K |
| 代理商： | S1L9225X |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁第38頁第39頁當前第40頁第41頁第42頁第43頁第44頁第45頁第46頁第47頁第48頁第49頁第50頁第51頁第52頁第53頁第54頁第55頁第56頁第57頁第58頁第59頁第60頁
S1L9225X
RF AMP & SERVO SIGNAL PROCESSOR
40
RHI: High level threshold value
RLI: Low level threshold value
Vdc: Window comparator input voltage
TBAL: And gate output value of the window comparator output
An Example of Tracking Balance Control
Out of $8000
→
$801F 32 steps, the upper and lower 32 steps are used. After receiving $8110 as the gain when
the focus and tracking are on, the control flow checks TRCNT frequency to see if the more than 7 TRCNT
entered during 10ms. If yes, it checks the ISTAT, if no, it checks the number of TRCNT three times and goes on
to the ISTAT check.
Repeats fail, it raises the balance switch by 1 step. If ISTAT does not immediately go to H, it for 10 ms during
ISTAT check after which it check whether ISTAT is H continuously for 10ms, is repeated three times. If the three
repeats fail, it raises the balance switch by 1 step.
The above wait 10 ms while running the system. It finds the average of the values obtained the three repeated
execution of the entire above balance control. If only the balance values are from two of the three repeats, these
values are averaged. If only two out of the three tries were successful in getting a balance value, average the
two values. Set as balance switch, this average value +2. This is because the balance for the system and the
minus value for the DC is stable in the system. Precision is important in balance adjust, and about 1+2 sec is
spent as adjust time, which is accounted for.
Balance Control Flowchart 1
Start
- Environment Setting
Focus on $08
Spindle on CLV-S
Tracking off $20
Sled off gain $8110
Balance Window Level
Setting
Check to see if
TRCNT is 7 for 10ms
ISTAT = H
Present Control Value
+2 Step then, ADJ end.
B0 to B4
Switch Control
Balance ADJ. Start $8000
Other Method
- Can balance adjust while
moving tracks
- $F03 easy to trcnt freq
check in the 2X mode
-10mV - +15mV $84 X0XX
-20mV - +20mV $84 X1XX
Almost
±
20mV
Is ISTAT = H
Check if ISTAT is H after
waiting 10ms repeat 3 times
Change switch if failure
after 3 repeats
Repeat 3 times
Change switch if failure
after 3 repeats
NO
YES
YES
NO
Balance ADJ. Switch
Incnease by 1 step
$8000 -> $801F
If finds the average of the values obtained the
three repeated execution of the entire above
bacance control.
If only two out of the three tries ware successtial in
getting a bacance value, average the two value.
相關PDF資料 |
PDF描述 |
|---|---|
| S1L9225X01-Q0R0 | RF AMP & SERVO SIGNAL PROCESSOR |
| S1M8656A | CDMA/AMPS Dual Mode IF/ baseband IC |
| S1M8656A01-E0T0 | CDMA/AMPS Dual Mode IF/ baseband IC |
| S1M8656A01-F0T0 | CDMA/AMPS Dual Mode IF/ baseband IC |
| S1M8657 | TX IF/BBA WITH AGC |
相關代理商/技術參數 |
參數描述 |
|---|---|
| S1L9225X01-Q0R0 | 制造商:SAMSUNG 制造商全稱:Samsung semiconductor 功能描述:RF AMP & SERVO SIGNAL PROCESSOR |
| S1L9226X | 制造商:SAMSUNG 制造商全稱:Samsung semiconductor 功能描述:RF AMP & SERVO SIGNAL PROCESSOR |
| S1L9226X01 | 制造商:SAMSUNG 制造商全稱:Samsung semiconductor 功能描述:RF AMP & SERVO SIGNAL PROCESSOR |
| S1L9226X01-Q0R0 | 制造商:SAMSUNG 制造商全稱:Samsung semiconductor 功能描述:RF AMP & SERVO SIGNAL PROCESSOR |
| S1L9251X | 制造商:SAMSUNG 制造商全稱:Samsung semiconductor 功能描述:CD-ROM 48X RF AMP |
發(fā)布緊急采購，3分鐘左右您將得到回復。