- 您现在的位置：买卖IC网 > PDF目录8575 > MAX9586AZK+T (Maxim Integrated Products)IC AMP VIDEO FILTER TSOT23-5 PDF资料下载
参数资料
| 型号： | MAX9586AZK+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 19/19页 |
| 文件大小： | 0K |
| 描述： | IC AMP VIDEO FILTER TSOT23-5 |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 1 |
| 应用： | 重构滤波器 |
| 电路数： | 1 |
| 电流 - 电源： | 4.25mA |
| 电流 - 输出 / 通道： | 140mA |
| 电压 - 电源，单路/双路(±)： | 2.7 V ~ 3.6 V |
| 安装类型： | 表面贴装 |
| 封装/外壳： | SOT-23-5 细型，TSOT-23-5 |
| 供应商设备封装： | TSOT-23-5 |
| 包装： | 标准包装 |
| 产品目录页面： | 1392 (CN2011-ZH PDF) |
| 其它名称： | MAX9586AZK+TDKR |
MAX9586–MAX9589
Single, Dual, Triple, and Quad Standard-Definition
Video Filter Amplifiers with AC-Coupled Input Buffers
_______________________________________________________________________________________
9
Detailed Description
The MAX9586–MAX9589 filter and amplify the video
DAC output in applications such as set-top boxes and
televisions. These devices consist of input clamps,
input bias circuits, lowpass filters, and gain of 2V/V out-
put amplifiers capable of driving a standard 150
video load to ground.
Inputs
The input stages of the MAX9586–MAX9589 are either
sync-tip clamps or bias circuits. Sync-tip clamps accept
AC-coupled CVBS or luma video signals with sync puls-
es. The sync-tip voltage is internally set to 300mV. Bias
circuit inputs accept AC-coupled chroma, a subcarrier
modulated with the color information. The bias voltage
of the bias circuits is approximately 500mV.
Video Filter
The filter passband (±1dB) is typically 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 sig-
nals have 4.2MHz bandwidth and PAL signals have
5MHz bandwidth. Video signals from a DVD player,
however, are not channel limited, so the bandwidth of
DVD video signals 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
modern video systems oversample by two times, clock-
ing the video current DAC at 27MHz.
Outputs
The video output amplifiers can both source and sink
load current, allowing output loads to be DC- or AC-
coupled. The amplifier output stage needs approxi-
mately 300mV of headroom from either supply rail. The
devices have an internal level-shift circuit that positions
the sync tip at approximately 300mV at the output.
If the supply voltage is greater than 3.135V (5% below
a 3.3V supply), each amplifier can drive two DC-cou-
pled video loads to ground. If the supply is less than
3.135V, each amplifier can drive only one DC-coupled
or AC-coupled video load.
Shutdown (MAX9586)
The MAX9586 draws less than 1A supply current
when SHDN is low. In shutdown mode, the amplifier
output becomes high impedance.
Applications Information
AC-Coupling the Outputs
The outputs can be AC-coupled since the output stage
can source and sink current as shown in Figure 4.
Coupling capacitors should be 220F or greater to
keep the highpass filter, formed by the 150
equivalent
resistance of the video transmission line, to a corner
frequency of 4.8Hz or below. The frame rate of PAL
systems is 25Hz, and the frame rate of NTSC systems
is 30Hz. The corner frequency should be well below the
frame rate.
Power-Supply Bypassing and Ground
The MAX9586–MAX9589 operate from a single-supply
voltage down to 2.7V, allowing for low-power operation.
Bypass VDD to GND with a 0.1F capacitor. Place all
external components as close as possible to the device.
CVBS IN
LOOPBACK
OUT
37.5
75
0.1
F
VIN
DOUT
37.5
MAX9526
0.1
F
IN
OUT
MAX9586
Figure 3. Loopback Circuit Diagram
相关PDF资料 |
PDF描述 |
|---|---|
| AD7837AR | IC DAC 12BIT DUAL MULT 24-SOIC |
| VE-B6W-MY-B1 | CONVERTER MOD DC/DC 5.5V 50W |
| VE-B1B-MU | CONVERTER MOD DC/DC 95V 200W |
| VE-2NM-IV-F2 | CONVERTER MOD DC/DC 10V 150W |
| VE-B6V-MY-B1 | CONVERTER MOD DC/DC 5.8V 50W |
相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX9586EVKIT+ | 功能描述:视频放大器 MAX9586 Evaluation Kit 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 |
| MAX9587AZT+ | 制造商:Maxim Integrated Products 功能描述:SINGLE, DUAL, TRIPLE, AND QUAD STANDARD-DEFINITION VIDEO FIL - Rail/Tube |
| MAX9587AZT+T | 功能描述:视频放大器 Standard-Definition Video 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 |
| MAX9587EVKIT+ | 制造商:Maxim Integrated Products 功能描述:MAX9587 EVAL KIT - Rail/Tube |
| MAX9588AUA+ | 功能描述:视频放大器 Standard-Definition Video 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 |
发布紧急采购，3分钟左右您将得到回复。