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參數(shù)資料
| 型號(hào)： | EL2082CS |
| 廠商： | ELANTEC |
| 元件分類： | 模擬運(yùn)算功能 |
| 英文描述： | Current Mode Multiplier |
| 中文描述： | ANALOG MULTIPLIER OR DIVIDER, 150 MHz BAND WIDTH, PDSO8 |
| 文件頁(yè)數(shù)： | 4/16頁(yè) |
| 文件大?。?/td> | 357K |
| 代理商： | EL2082CS |
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EL2082C
Current-Mode Multiplier
Applications Information
Contd
The IIN pin of the EL2082 looks like 95X well past 100 MHz and the output looks like a simple
current-source in parallel with about 5 pF There is no particular problem with any resistance or
reactance connected to IIN or IOUT The mixer output is generally sent to a crystal filter which
required a few hundred ohm terminating impedance The impedance of the IIN pin of the first EL2082
is transformed to about 400
X by the 21 transformer T1 The two EL2082’s are used as variable-gain IF
amplifiers with small gains offered by each The output of the first EL2082 is coupled to the second by
the resonant matching network L1 – C1 ForaQof5 Xc1 e x11 e 5 c 95
X approximately The
impedance seen at the first EL2082’s IOUT will be about Q2 c 95X or 25k and by impedance transfor-
mation alone the first gain cell delivers 28 dB of gain at Vg e 1V More gain cells can be used for a
wider range of (calibrated) AGC compliance
The E input can be used as a high-speed noise blanker gate
Linearized FaderGain Control
The following circuit is an example of placing two EL2082’s in the feedback network of an op-amp to
significantly reduce their distortions
Linearized Gain ControlFader
VOUT e K VA
a
(1bK)
VB
where O s K s 1
2082 – 20
NTSC Differential Gain Error
Dual EL2082 Fader with EL2030
2082 – 21
NTSC Differential Phase Error
Dual EL2082 Fader with EL2030
2082 – 22
12
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| EL2082J | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Analog Multiplier |
| EL208-V | 功能描述:晶體管輸出光電耦合器 Optocouplers RoHS:否 制造商:Vishay Semiconductors 輸入類型:DC 最大集電極/發(fā)射極電壓:70 V 最大集電極/發(fā)射極飽和電壓:0.4 V 絕緣電壓:5300 Vrms 電流傳遞比:100 % to 200 % 最大正向二極管電壓:1.65 V 最大輸入二極管電流:60 mA 最大集電極電流:100 mA 最大功率耗散:100 mW 最大工作溫度:+ 110 C 最小工作溫度:- 55 C 封裝 / 箱體:DIP-4 封裝:Bulk |
| EL2090 | 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:100MHz DC-Restored Video Amplifier |
| EL2090C | 制造商:ELANTEC 制造商全稱:ELANTEC 功能描述:100 MHz DC-Restored Video Amplifier |
| EL2090CM | 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:100MHz DC-Restored Video Amplifier |
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