- 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)： | 47/55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頁第43頁第44頁第45頁第46頁當(dāng)前第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
47
RF EQUALIZE & AGC
The Modulator output is the product of the input and Vcagcs Tanh Term. It goes through about 3x of Gain Blocks,
then is output to the ARF Pad. The output goes through the HPF with the pole frequency of 50 kHz, then is full-
wave rectified to follow-up the RF Levels Peak Envelope.
At this time, the HPFs Pole frequency is set to 50 kHz so that the 3t~11t frequency components can pass without
diminution. After full-wave rectification, the RF levels Peak value is integrated to the 115pf CAP Node. If this peak
voltage is smaller than the pre-determined voltage, it outputs a sinking current, and if larger, it outputs a sourcing
current. The maximum current peak value is 10 uA, and this current is I/V converted and applied as a Modulator
Control Voltage.
When Sinking, the voltage of Vcagc is increased up to Iout x 10 K and multiplied with Tanh(1-X), and when
Sourcing, the voltage of Vcagc is decreased to Iout x 10 K and multiplied with Tanh(1+X). At this time, X is (Vcagc/
2Vt).
Overall, after detecting the 3t and 11ts level by full-wave rectification, it is compared to Tanh using the Modulator
and multiplied to the Gain to realize the wave-form Equalize. The above is related to the AGC concept, which
means that a specific RF level is always taken.
OTHER BLOCK
13.1 TRACKING ERROR AMPLIFIER
The Side Spot Photo Diode current which is input into blocks E and F, goes through the E Loop I-V and F Loop I-V
Amp. It is then converted into voltage, in order to gain the difference signal in the Tracking Error Amp. It is MICOM
Vin(t)
-
+
Modulator
Ablout 3X Gain
AMP
HPF
(3 dB: 50 kHz)
Full Wave
Rectifier
(RF peak envelope)
I/V Converter
Control Range I*10 K
Vcagc(t)
Vo(t)
ARF-AGC
Output
Vp
Vn
相關(guān)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(guān)代理商/技術(shù)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(fù)。