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參數(shù)資料
| 型號： | MAX9515EVKIT+ |
| 廠商： | Maxim Integrated Products |
| 文件頁數(shù)： | 8/10頁 |
| 文件大?。?/td> | 0K |
| 描述： | KIT EVAL FOR MAX9515 |
| 產(chǎn)品培訓(xùn)模塊： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 標準包裝： | 1 |
| 主要目的： | 視頻，放大器，單路 |
| 嵌入式： | 否 |
| 已用 IC / 零件： | MAX9515 |
| 主要屬性： | 重構(gòu)濾波器，9MHz 通帶 |
| 次要屬性： | 2.7 V ~ 3.6 V 電源 |
| 已供物品： | 板 |
Automatic Shutdown
The MAX9515 automatic shutdown circuitry reduces
power consumption when there is no active video input
signal or an output load. In shutdown, the supply cur-
rent is reduced to 5A. The video amplifier only turns
on when both an active video input signal and an out-
put load are present.
The MAX9515 slices the IN signal at 4.7% of the power
supply (155mV for a 3.3V supply). If the transitions
occur at a rate of 7.3kHz or higher, a video signal is
present. When the MAX9515 detects a video signal
with sync at the input, the control logic enters the
active-detect mode and enables the load sense circuit-
ry (Figure 2). The supply current increases from 5A to
9A typically.
If an output load is not connected to the amplifier, the
MAX9515 remains in active-detect mode. Eight times
per second, the load-sense circuit checks for a load by
connecting an internal 15k
Ω pullup resistor to the out-
put for 1ms. If the output is pulled up, no load is pre-
sent. If the output stays low, a load is connected.
If the input video signal is present and a load is con-
nected to the output, the filter and amplifier turn on and
remain on until the output load is disconnected.
Automatic shutdown intelligently reduces the supply
current based on the input signal presence and output
loading (Figure 3).
When the amplifier is on, it continually checks if the
load has been disconnected by detecting if the amplifi-
er output is sourcing current during a horizontal line
time. If no sourcing current is detected within one hori-
zontal line time (approximately 64s), the load has
been disconnected and the amplifier returns to active-
detect mode. If, at any time, the input video signal is
removed, the MAX9515 returns to standby mode.
MAX9515
1mm x 1mm Video Filter Amplifier with
Automatic Shutdown and 2V/V Gain
_______________________________________________________________________________________
7
CURRENT
DAC
VIDEO ENCODER
VIDEO SIGNAL
PRESENT
AV = 2V/V
OUT
NO LOAD
IN
BUFFER
LPF
AUTOMATIC
SHUTDOWN
CONTROL LOGIC
MAX9515
VDD
+3.3V
9
μA
75
Ω
GND
0
TO
50mV
1VP-P VIDEO
Figure 2. Active-Detect Mode
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX9515EVKIT+ | 功能描述:放大器 IC 開發(fā)工具 MAX9515 Eval Kit RoHS:否 制造商:International Rectifier 產(chǎn)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 |
| MAX9516ALB+ | 制造商:Maxim Integrated Products 功能描述:1.8V, ULTRA-LOW-POWER, DIRECTDRIVE VIDEO FILTER AMPLIFIER - Bulk |
| MAX9516ALB+T | 功能描述:視頻放大器 1.8V DirectDrive Video Filter Amp RoHS:否 制造商:ON Semiconductor 通道數(shù)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 |
| 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(chǎn)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(shù)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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