- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄374311 > KB9224 (SAMSUNG SEMICONDUCTOR CO. LTD.) VIDEO-CD 2ND GENERATION PDF資料下載
參數(shù)資料
| 型號： | KB9224 |
| 廠商： | SAMSUNG SEMICONDUCTOR CO. LTD. |
| 英文描述： | VIDEO-CD 2ND GENERATION |
| 中文描述： | 視頻-環(huán)糊精第二代 |
| 文件頁數(shù)： | 43/55頁 |
| 文件大?。?/td> | 450K |
| 代理商： | KB9224 |
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頁第40頁第41頁第42頁當前第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
VIDEO-CD 2ND GENERATION
KB9224
43
FEBIAS OFFSET ADJUST
MICOM sends the Febias Offset Adjust Command $841 to start the adjustment. In the Focus Error Amp Final
output block, the Focus output is compared with the 1/2 Vdd. If the Focus Error Amp output goes above 1/2 VDD,
the Febias offset adjust is completed. The Focus Offset Adjusts voltage change per step is about 17 mv. Transition
is carried out 1 step at a time from 112 mv to -112 mv by the total 5-bit resistance DAC, and after completion,
about -8 mv of Offset is added to 1/2 step. Normally, the Offset distribution after Febias Offset adjust is between -8
mv ~ +8 mv. The design is such that after Focus Offset, you have the option to vary the Febias by turning On the
switch that connects the exterior and interior of the Febias block (pin 63). This Control signal is Sev_stop, and it is
switched On after Focus Servo Offset adjust.
When Febias block is Open, the Focus Error Offset remains unchanged, the same as Febias Adjust Offset. The
time spent per step is 5.8 ms, and since there are 5 bits, a total of 32 steps and maximum 256 ms can be spent.
The Adjustment is carried out by Hardware, and it transitions from Minus Offset to Plus Offset.
For Febias Offset Readjust, 4-bit DAC is Reset by $878, and Reset can be canceled only when the $87F-applied
D2 bit goes from 0 --> 1.
In order to prevent system errors such as static electricity, the Febias DAC Latch Blocks Reset is not carried out by
the RESET block (System Reset), but by MICOM DATA.
32 K
32 K
160 K
-
+
-
+
4 K
63
164 K
3 K
X1 X2 X4 X8
X16
-
+
fcmpo
59
sev_stop
vb
va
vc
FE1
FEbias
相關PDF資料 |
PDF描述 |
|---|---|
| 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 |
| KBC1100L | MOBILE KBC WITH SFI ADC AND DAC WITH SMSC SENTINELALERT |
| KBC1100L-PE | MOBILE KBC WITH SFI ADC AND DAC WITH SMSC SENTINELALERT |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| 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 |
| KB993516 | 制造商:n/a 功能描述:Bridge Module |
| KB-A100SRW | 功能描述:LED 顯示器和配件 Red 640nm 90mcd Diffused Light Bar RoHS:否 制造商:Avago Technologies 顯示器類型:7 Segment 數(shù)位數(shù)量:2 字符大小:7.8 mm x 14.22 mm 照明顏色:Red 波長:628 nm 共用管腳:Common Anode 工作電壓:2.05 V 工作電流:20 mA 最大工作溫度:+ 85 C 最小工作溫度:- 35 C 封裝:Tube |
發(fā)布緊急采購，3分鐘左右您將得到回復。