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參數(shù)資料
| 型號(hào)： | MAX11503EUA+T |
| 廠商： | Maxim Integrated Products |
| 文件頁(yè)數(shù)： | 6/8頁(yè) |
| 文件大?。?/td> | 0K |
| 描述： | IC VIDEO Y/C SUMMER W/DVR 8-MSOP |
| 產(chǎn)品培訓(xùn)模塊： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 標(biāo)準(zhǔn)包裝： | 2,500 |
| 類型： | 驅(qū)動(dòng)器 |
| 應(yīng)用： | 照相機(jī) |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 8-TSSOP，8-MSOP（0.118"，3.00mm 寬）裸露焊盤 |
| 供應(yīng)商設(shè)備封裝： | 8-uMax-EP |
| 包裝： | 帶卷 (TR) |
MAX11503
Applications Information
Input Configuration
The luma input can be DC-coupled if the sync tip is near
ground (see the
Minimum Supply-Voltage Considerations
section). Otherwise, it should be AC-coupled into YIN
with a 0.1F capacitor. When the luma input is AC-cou-
pled, the transparent clamp adjusts its sync tip to
ground at YIN. Because the chroma input is internally
AC-coupled and biased, an external AC-coupling
capacitor is not required unless the signal is outside
the operating voltage range.
Output-Amplifier Configuration
The output buffer is capable of driving two terminated
AC- or DC-coupled 75 video coax cables. With sync
tip at the input at ground, the sync tip at the output is
offset by +250mV.
SAG-Corrected Output
SAG uses feedback to reduce the size of the output AC-
coupling capacitor. Without SAG, a 220F AC-coupling
capacitor is required to reduce tilt when feeding each
terminated 75 coax cable (Figure 2). This sets the
highpass -3dB frequency to 5Hz. Using SAG correction
with COUT = 68F and CSAG = 33F also achieves a
highpass -3dB frequency of 5Hz, but with smaller
capacitors (Figure 1).
SAG correction is inherently designed to drive a con-
stant load because the capacitor values vary with the
number of loads driven. If the capacitors are chosen for
two loads and the end user only connected one, the
video tilt would be opposite in sign, but of the same
magnitude as not using SAG at all. This would cause
excessive video tilt and the failure of the next piece of
equipment. The recommended capacitor values for two
constant 75 terminated video loads are COUT =
120F, CSAG = 68F. In addition, SAG feedback pre-
distortion function requires about 30% more overhead
in the video driver. Hence, use SAG correction only
with a typical 5V supply voltage. See the
Minimum
Supply-Voltage Considerations section for calculations.
When SAG is not used, such as with AC- or DC-coupling
at the output, the driver can drive two terminated 75
video coaxial cables. Connect SAG to OUT when not
using SAG correction.
Traditional AC-Coupled Output
The MAX11503 can also be configured to drive one or
two of the familiar terminated AC-coupled video coax
cables as shown in Figure 2.
Video Y/C Summer with
Driver and Chroma Mute
6
_______________________________________________________________________________________
MAX11503
OUT
SAG
75
*REMOVE AND SHORT FOR DC-COUPLED OPERATION
COUT
68F*
CSAG
33F*
75
Figure 1. Output with SAG Correction
MAX11503
OUT
SAG
75
*REMOVE AND SHORT FOR DC-COUPLED OPERATION
(a)
(b)
220F*
75
MAX11503
OUT
SAG
75
220F*
75
220F*
75
Figure 2. Traditional AC-Coupled Output
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參數(shù)描述 |
|---|---|
| MAX11503EVKIT+ | 功能描述:視頻 IC 開(kāi)發(fā)工具 MAX11503 Eval Kit RoHS:否 制造商:Texas Instruments 產(chǎn)品:Evaluation Boards 類型:YPbPr to RGBHV Converters 工具用于評(píng)估:LMH1251 工作電源電壓:5 V |
| MAX11504 | 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:Four-Channel, Standard-Definition Video Filter |
| MAX11504CUB+ | 功能描述:視頻 IC 4Ch Standard-Def Video Filter RoHS:否 制造商:Fairchild Semiconductor 工作電源電壓:5 V 電源電流:80 mA 最大工作溫度:+ 85 C 封裝 / 箱體:TSSOP-28 封裝:Reel |
| MAX11504CUB+T | 功能描述:視頻 IC 4Ch Standard-Def Video Filter RoHS:否 制造商:Fairchild Semiconductor 工作電源電壓:5 V 電源電流:80 mA 最大工作溫度:+ 85 C 封裝 / 箱體:TSSOP-28 封裝:Reel |
| MAX11504EVKIT+ | 功能描述:視頻 IC 開(kāi)發(fā)工具 MAX11504 Eval Kit RoHS:否 制造商:Texas Instruments 產(chǎn)品:Evaluation Boards 類型:YPbPr to RGBHV Converters 工具用于評(píng)估:LMH1251 工作電源電壓:5 V |
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