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参数资料
| 型号： | MAX9654AUB+ |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 15/15页 |
| 文件大小： | 0K |
| 描述： | IC AMP FILTER W/SHUTDOWN 10-UMAX |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 50 |
| 应用： | 滤波器 |
| 电路数： | 3 |
| 电流 - 电源： | 28.3mA |
| 电压 - 电源，单路/双路(±)： | 3.14 V ~ 3.47 V |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 10-TFSOP，10-MSOP（0.118"，3.00mm 宽） |
| 供应商设备封装： | 10-µMAX |
| 包装： | 管件 |
42MHz, which is well beyond the 30MHz specification
for high-definition video signals. The typical attenuation
is 30dB at 74.25MHz, which is the sample clock rate for
the first generation of high-definition video DACs. The
typical attenuation is 50dB at 109MHz, which is also a
popular sample clock rate.
SD Video Filter
The MAX9654 has a six-pole Butterworth filter with a
typical passband (±1dB) of 8.5MHz, which makes the
device suitable for standard-definition video signals
from all sources (e.g., broadcast and DVD). Broadcast
video signals are channel limited: NTSC signals have
4.2MHz bandwidth and PAL signals have 5MHz band-
width. Video signals from a DVD player, however, are
not channel limited, so the bandwidth of DVD video sig-
nals can approach the Nyquist limit of 6.75MHz.
Recommendation ITU-R BT.601-5 specifies 13.5MHz as
the sampling rate for standard-definition video.
Therefore, the maximum bandwidth of the signal is
6.75MHz. To ease the filtering requirements, most mod-
ern video systems oversample by two times, clocking
the video current DAC at 27MHz. The typical attenua-
tion is 57dB at 27MHz.
Video Amplifier
The output amplifiers have a fixed gain of 2V/V, and
their rail-to-rail output stages are capable of driving
back-terminated 75
Ω loads. The output load can be
either DC-coupled or AC-coupled, in which case, use
an AC-coupling capacitor of at least 220F.
The luma signal at YOUT swings between 0.3V and
2.3V approximately. The color difference signals are
centered around 1.32V.
Short-Circuit Protection
The back-termination resistor in a typical application
limits the short-circuit current if an external short is
applied to the system. Additionally, the output ampli-
fiers have built-in short-circuit protection to prevent
accidental damage when the outputs are directly short-
ed to either supply or ground for short times.
Digital Control
The MAX9654 passband is selectable between SD and
HD. Pulling SD/HD low results in an HD passband, and
pulling SD/HD high results in a SD passband. The
MAX9652/MAX9653 have a fixed HD passband.
The MAX9653/MAX9654 feature a shutdown mode. Pull
SHDN high for normal operation. Pull SHDN low to put the
devices in shutdown, reducing quiescent current to 12A
typically and placing the outputs in high impedance.
Applications Information
Power Consumption
The quiescent power consumption and average power
consumption of the MAX9652/MAX9653/MAX9654 are
low because of the 3.3V operation. Quiescent power
consumption is defined when the parts operate without a
load. In this case, the MAX9652/MAX9653/MAX9654
consume approximately 95mW. Average power con-
sumption, which is defined when the MAX9652/
MAX9653/MAX9654 drive a 150
Ω load to ground with
color bars, is about 200mW. Table 1 shows the power
consumption with different HD video signals. The supply
voltage is 3.3V. The outputs drive 150
Ω loads to ground.
MAX9652/MAX9653/MAX9654
3.3V, HD/SD Triple-Channel Filter Amplifiers
with Shutdown
_______________________________________________________________________________________
9
667k
Ω
333k
Ω
MAX9653
MAX9654
IN_
VDD
222k
Ω
MAX9653
MAX9654
IN_
VDD/3
Figure 1. (A) MAX9653/MAX9654 Input Circuit in Shutdown
Mode; (B) MAX9653/MAX9654 Equivalent Input Circuit in
Shutdown Mode
VIDEO SIGNAL
POWER CONSUMPTION (mW)
All black screen
181
All white screen
209
Color bars
200
Table 1. Power Consumption of the
MAX9652/MAX9653/MAX9654 with
Different HD Video Signals
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX9654AUB+ | 功能描述:视频放大器 3.3V HD/SD 3Ch Filter Amp RoHS:否 制造商:ON Semiconductor 通道数量:4 电源类型: 工作电源电压:3.3 V, 5 V 电源电流: 最小工作温度: 最大工作温度: 封装 / 箱体:TSSOP-14 封装:Reel |
| MAX9654AUB+T | 功能描述:视频放大器 3.3V HD/SD 3Ch Filter Amp RoHS:否 制造商:ON Semiconductor 通道数量:4 电源类型: 工作电源电压:3.3 V, 5 V 电源电流: 最小工作温度: 最大工作温度: 封装 / 箱体:TSSOP-14 封装:Reel |
| MAX9654EVKIT+ | 功能描述:放大器 IC 开发工具 MAX9654 Eval Kit RoHS:否 制造商:International Rectifier 产品:Demonstration Boards 类型:Power Amplifiers 工具用于评估:IR4302 工作电源电压:13 V to 23 V |
| MAX9655AEE+ | 功能描述:视频开关 IC Video Switch f/Dual SCART Connector RoHS:否 制造商:Texas Instruments 开关数量:4 开启电阻（最大值）:12 Ohms 传播延迟时间: 开启时间（最大值）: 关闭时间（最大值）: 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:WQFN-42 封装:Reel |
| MAX9655AEE+T | 功能描述:视频开关 IC Video Switch f/Dual SCART Connector RoHS:否 制造商:Texas Instruments 开关数量:4 开启电阻（最大值）:12 Ohms 传播延迟时间: 开启时间（最大值）: 关闭时间（最大值）: 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:WQFN-42 封装:Reel |
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