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參數(shù)資料
| 型號： | ADA4411-3ARQZ-R7 |
| 廠商： | Analog Devices Inc |
| 文件頁數(shù)： | 4/16頁 |
| 文件大小： | 0K |
| 描述： | IC HD/FILTER/BUFFER/MUX 24QSOP |
| 標(biāo)準(zhǔn)包裝： | 1,000 |
| 應(yīng)用： | 2:1 多路復(fù)用器-放大器 |
| 輸出類型： | 滿擺幅 |
| 電路數(shù)： | 3 |
| 電流 - 電源： | 57mA |
| 電流 - 輸出 / 通道： | 30mA |
| 電壓 - 電源，單路/雙路(±)： | 4.5 V ~ 12 V，±2.25 V ~ 6 V |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 24-SSOP（0.154"，3.90mm 寬） |
| 供應(yīng)商設(shè)備封裝： | 24-QSOP |
| 包裝： | 帶卷 (TR) |
ADA4411-3
Rev. 0 | Page 12 of 16
LEVEL1 and LEVEL2 inputs.
INPUT AND OUTPUT COUPLING
Figure 20 shows examples of how
to generate fully adjustable LEVEL1 and LEVEL2 voltages from
±5 V and single +5 V supplies. These circuits show a general
case, but a more practical approach is to fix one voltage and
vary the other.
Inputs to the ADA4411-3 are normally dc-coupled. Ac coupling
the inputs is not recommended; however, if ac coupling is
necessary, suitable circuitry must be provided following the ac
coupling element to provide proper dc level and bias currents at
the ADA4411-3 input stages. The ADA4411-3 outputs can be
either ac- or dc-coupled.
Figure 21 illustrates an effective way to produce
a 600 mV output offset voltage in a single-supply application.
Although the LEVEL2 input could simply be connected to
GND, Figure 21 includes bypassed resistive voltage dividers for
each input so that the input levels can be changed, if necessary.
Additionally, many in-circuit testers require that I/O signals not
be tied directly to the supplies or GND. DNP indicates do not
populate.
When driving single ac-coupled loads in standard 75 Ω video
distribution systems, 220 μF coupling capacitors are recom-
mended for use on all but the chrominance signal output. Since
the chrominance signal is a narrow-band modulated carrier, it
has no low frequency content and can therefore be coupled with
a 0.1 μF capacitor.
05527-
018
DUAL SUPPLY
0.1
μF
LEVEL1
9.53k
Ω
1k
Ω
9.53k
Ω
+5V
–5V
0.1
μF
LEVEL2
9.53k
Ω
1k
Ω
9.53k
Ω
+5V
–5V
SINGLE SUPPLY
0.1
μF
LEVEL1
1k
Ω
9.09k
Ω
+5V
0.1
μF
LEVEL2
1k
Ω
9.09k
Ω
+5V
There are two ac coupling options when driving two loads from
one output. One simply uses the same value capacitor on the
second load, while the other is to use a common coupling
capacitor that is at least twice the value used for the single load
(see Figure 22 and Figure 23).
05
527-
02
0
75
Ω
ADA4411-3
75
Ω
220
μF
220
μF
75
Ω
75
Ω
75
Ω
CABLE
75
Ω
CABLE
Figure 20. Generating Fully Adjustable Output Offsets
Figure 22. Driving Two AC-Coupled Loads with Two Coupling Capacitors
0552
7-
021
75
Ω
75
Ω
75
Ω
75
Ω
470
μF
75
Ω
CABLE
75
Ω
CABLE
ADA4411-3
05527-
019
0.1
μF
LEVEL1
634
Ω
10k
Ω
+5V
DNP
LEVEL2
0
Ω
DNP
+5V
Figure 21. Flexible Circuits to Set the LEVEL1 and LEVEL2 Inputs to
Obtain a 600 mV Output Offset on a Single Supply
Figure 23. Driving Two AC-Coupled Loads with One Common Coupling Capacitor
When driving two parallel 150 Ω loads (75 Ω effective load),
the 3 dB bandwidth of the filters typically varies from that of
the filters with a single 150 Ω load. For the 9 MHz and 18 MHz
filters, the typical variation is within ±1.0%; for the 36 MHz
filters, the typical variation is within ±2.5%.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ADA4411-3ARQZ-RL | 功能描述:IC HD/FILTER/BUFFER/MUX 24QSOP RoHS:是 類別:集成電路 (IC) >> 線性 - 放大器 - 視頻放大器和頻緩沖器 系列:- 標(biāo)準(zhǔn)包裝:1,000 系列:- 應(yīng)用:驅(qū)動器 輸出類型:差分 電路數(shù):3 -3db帶寬:350MHz 轉(zhuǎn)換速率:1000 V/µs 電流 - 電源:14.5mA 電流 - 輸出 / 通道:60mA 電壓 - 電源，單路/雙路(±):5 V ~ 12 V，±2.5 V ~ 6 V 安裝類型:表面貼裝 封裝/外殼:20-VFQFN 裸露焊盤 供應(yīng)商設(shè)備封裝:20-QFN 裸露焊盤（4x4） 包裝:帶卷 (TR) |
| ADA4412-3 | 制造商:AD 制造商全稱:Analog Devices 功能描述:Integrated Triple Video Filter with Selectable Cutoff Frequencies for RGB, HD/SD |
| ADA4412-3ARQZ | 功能描述:IC FILTER VID RGB/HD/SD 20-QSOP RoHS:是 類別:集成電路 (IC) >> 線性 - 視頻處理 系列:- 標(biāo)準(zhǔn)包裝:250 系列:- 類型:電平移位器 應(yīng)用:LCD 電視機(jī)/監(jiān)控器 安裝類型:表面貼裝 封裝/外殼:28-WFQFN 裸露焊盤 供應(yīng)商設(shè)備封裝:28-WQFN（4x4）裸露焊盤 包裝:帶卷 (TR) 其它名稱:296-32523-2TPS65198RUYT-ND |
| ADA4412-3ARQZ-R7 | 功能描述:IC FILTER VID RGB/HD/SD 20QSOP RoHS:是 類別:集成電路 (IC) >> 線性 - 視頻處理 系列:- 產(chǎn)品變化通告:Product Discontinuation 07/Mar/2011 標(biāo)準(zhǔn)包裝:3,000 系列:OMNITUNE™ 類型:調(diào)諧器 應(yīng)用:移動電話，手機(jī)，視頻顯示器 安裝類型:表面貼裝 封裝/外殼:65-WFBGA 供應(yīng)商設(shè)備封裝:PG-WFSGA-65 包裝:帶卷 (TR) 其它名稱:SP000365064 |
| ADA4412-3ARQZ-RL | 功能描述:IC FILTER VID RGB/HD/SD 20QSOP RoHS:是 類別:集成電路 (IC) >> 線性 - 視頻處理 系列:- 產(chǎn)品變化通告:Product Discontinuation 07/Mar/2011 標(biāo)準(zhǔn)包裝:3,000 系列:OMNITUNE™ 類型:調(diào)諧器 應(yīng)用:移動電話，手機(jī)，視頻顯示器 安裝類型:表面貼裝 封裝/外殼:65-WFBGA 供應(yīng)商設(shè)備封裝:PG-WFSGA-65 包裝:帶卷 (TR) 其它名稱:SP000365064 |
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