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參數資料
| 型號： | MAX9516ALB+T |
| 廠商： | Maxim Integrated Products |
| 文件頁數： | 15/15頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC VIDEO FILTER AMP 1.8V 10-UDFN |
| 產品培訓模塊： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 標準包裝： | 1 |
| 系列： | DirectDrive® |
| 應用： | 重構濾波器 |
| 電路數： | 1 |
| 電流 - 電源： | 3.1mA |
| 電流 - 輸出 / 通道： | 81mA |
| 電壓 - 電源，單路/雙路(±)： | 1.7 V ~ 2.63 V |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 10-WFDFN |
| 供應商設備封裝： | 10-uDFN（2x2） |
| 包裝： | 標準包裝 |
| 產品目錄頁面： | 1392 (CN2011-ZH PDF) |
| 其它名稱： | MAX9516ALB+TDKR |
MAX9516
1.8V, Ultra-Low-Power, DirectDrive
Video Filter Amplifier with Load Detect
_______________________________________________________________________________________
9
pled input, the sync-tip clamp automatically clamps the
input signal to ground, preventing it from going lower. A
small current of 2A pulls down on the input to prevent
an AC-coupled signal from drifting outside the input
range of the part.
Using an AC-coupled input will result in some addition-
al variation of the black level at the output. Applying a
voltage above ground to the input pin of the device
always produces the same output voltage, regardless
of whether the input is DC- or AC-coupled. However,
since the sync-tip clamp level (VCLP) can vary over a
small range, the video black level at the output of the
device when using an AC-coupled input can vary by an
additional amount equal to the VCLP multiplied by the
DC voltage gain (AV).
Short-Circuit Protection
In Figure 7, the MAX9516 includes a 75 back-termina-
tion resistor that limits short-circuit current if an external
short is applied to the video output. The MAX9516 also
features internal output short-circuit protection to prevent
device damage in prototyping and applications where
the amplifier output can be directly shorted.
Shutdown
The MAX9516 features a low-power shutdown mode for
battery-powered/portable applications. Shutdown
reduces the quiescent current to less than 10nA.
Connecting SHDN to ground (GND) disables the output
and places the MAX9516 into a low-power shutdown
mode. In shutdown mode, the sync-tip clamp, filter,
amplifier, charge pump, and linear regulator are turned
off and the video output is high impedance.
Applications Information
Power Consumption
The quiescent power consumption and average power
consumption of the MAX9516 is remarkably low
because of the 1.8V operation and the DirectDrive
technology. Quiescent power consumption (PQ) is the
power consumed by the internal circuitry of the
MAX9516. The formula for calculating PQ is below.
PQ = PTOTAL - PLOAD
PTOTAL is the total power drawn from the supply volt-
age, and PLOAD is the power consumed by the load
attached to OUT. For the MAX9516, the quiescent
power consumption is typically 6mW.
Average power consumption, which is representative of
the power consumed in a real application, is the total
power drawn from the supply voltage for a MAX9516
driving a 150 load to ground with a 50% flat field.
Under such conditions, the average power consumption
for the MAX9516 is 12mW. Table 1 shows the power
consumption with different video signals. The supply
voltage is 1.8V. OUT drives a 150 load to ground.
Notice that the two extremes in power consumption
occur with a video signal that is all black and a video
signal that is all white. The power consumption with
75% color bars and a 50% flat field lies in between the
extremes.
Interfacing to Video DACs that Produce
Video Signals Larger than 0.25VP-P
Devices designed to generate 1VP-P video signals at
the output of the video DAC can still work with the
MAX9516. Most video DACs source current into a
ground-referenced resistor, which converts the current
into a voltage. Figure 3 shows a video DAC that creates
a video signal from 0 to 1V across a 150 resistor. The
following video filter amplifier has a gain of 2V/V so that
the output is 2VP-P.
The MAX9516 expects input signals that are 0.25VP-P
nominally. The same video DAC can be made to work
with the MAX9516 by scaling down the 150 resistor to
a 37.5 resistor, as shown in Figure 4. The 37.5 resis-
tor is one-quarter of the 150 resistor, resulting in a
video signal that is one-quarter the amplitude.
VIDEO SIGNAL
MAX9516 POWER
CONSUMPTION (mW)
All Black Screen
6.7
All White Screen
18.2
75% Color Bars
11.6
50% Flat Field
11.7
150
0 TO 1V
LPF
DAC
IMAGE
PROCESSOR
ASIC
75
2V/V
Figure 3. Video DAC generates a 1VP-P signal across a 150
resistor connected to ground.
Table 1. Power Consumption of MAX9516
with Different Video Signals
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相關代理商/技術參數 |
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|---|---|
| MAX9516EVKIT+ | 功能描述:放大器 IC 開發(fā)工具 MAX9516 Eval Kit RoHS:否 制造商:International Rectifier 產品:Demonstration Boards 類型:Power Amplifiers 工具用于評估:IR4302 工作電源電壓:13 V to 23 V |
| MAX9517ATC+ | 功能描述:視頻放大器 Standard-Definition Video Filter Amp RoHS:否 制造商:ON Semiconductor 通道數量:4 電源類型: 工作電源電壓:3.3 V, 5 V 電源電流: 最小工作溫度: 最大工作溫度: 封裝 / 箱體:TSSOP-14 封裝:Reel |
| MAX9517ATC+T | 功能描述:視頻放大器 Standard-Definition Video Filter Amp RoHS:否 制造商:ON Semiconductor 通道數量:4 電源類型: 工作電源電壓:3.3 V, 5 V 電源電流: 最小工作溫度: 最大工作溫度: 封裝 / 箱體:TSSOP-14 封裝:Reel |
| MAX9517EVKIT+ | 功能描述:放大器 IC 開發(fā)工具 MAX9517/24 Eval Kit RoHS:否 制造商:International Rectifier 產品:Demonstration Boards 類型:Power Amplifiers 工具用于評估:IR4302 工作電源電壓:13 V to 23 V |
| MAX9519ARS+T | 功能描述:視頻放大器 Video Filter Amp RoHS:否 制造商:ON Semiconductor 通道數量:4 電源類型: 工作電源電壓:3.3 V, 5 V 電源電流: 最小工作溫度: 最大工作溫度: 封裝 / 箱體:TSSOP-14 封裝:Reel |
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