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參數(shù)資料
| 型號： | MAX11501EVKIT+ |
| 廠商： | Maxim Integrated Products |
| 文件頁數(shù)： | 9/11頁 |
| 文件大?。?/td> | 0K |
| 描述： | KIT EVALUATION FOR MAX11501 |
| 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，視頻濾波器 |
| 已用 IC / 零件： | MAX11501 |
| 已供物品： | 板 |
MAX11501/MAX11502
Three-Channel,
Standard-Definition Video Filters
_______________________________________________________________________________________
7
Standard-Definition Filters
The MAX11501/MAX11502 filters are optimized to deliver
a flat (MAX11501) or high-frequency boosted (MAX11502)
passband and high stopband attenuation. The filter char-
acteristics have been chosen to provide excellent time
domain response with low overshoot. The typical -3dB fre-
quency of 8.6MHz (MAX11501) and 8.9MHz (MAX11502)
guarantee minimal attenuation in the passband while
at the same time offering a 27MHz attenuation of
typically -50dB (MAX11501) and -48dB (MAX11502).
Output Buffer
The MAX11501/MAX11502 feature output buffers with
+6dB of gain. A typical load (Figure 5(a)) is a 75Ω back-
match resistor, an optional 220F or larger AC-coupling
capacitor, a transmission line, and a 75Ω termination
resistor. The MAX11501/MAX11502 clamp the signal,
forcing the blanking level to less than 1V at the termina-
tion resistor. This allows direct drive of video loads at
digital TV specifications without the need for costly AC-
coupling capacitors. The MAX11501/MAX11502 drive
two parallel loads per output (Figure 5(b)), but thermal
considerations must be taken into account when doing
so (see the
Junction-Temperature Calculations section).
Applications Information
Output Configuration
The MAX11501/MAX11502 outputs may be either DC- or
AC-coupled. When the outputs are AC-coupled, choose
a capacitor that passes the lowest frequency content of
the video signal, and keeps the line-time distortion within
desired limits. The capacitor value is a function of the
input leakage and impedance of the circuit being driven.
The MAX11501/MAX11502 easily drive the industry com-
mon 220F, or larger, coupling capacitor. If any or all
outputs are driving two parallel loads, see the
Junction-
Temperature Calculations section.
The MAX11501/MAX11502 outputs are fully protected
against short circuits to ground. The short-circuit pro-
tection circuitry limits the output current to 80mA (typi-
cal) per output. Shorting more than one output to
ground simultaneously may exceed the maximum
package power dissipation.
Junction-Temperature Calculations
Die temperature is a function of quiescent power dissi-
pation and the power dissipation in the output drivers.
Calculate the power dissipated, PD, using:
PD = PDS + PDO1 + PDO2 + PDO3
where PDS is the quiescent power dissipated in the die,
and given by:
PDS = VCC x ICC
and where PDOn is the power dissipated in the nth dri-
ver stage and given by:
where VORMSn is the RMS output voltage and RLn is the
load resistance.
The following is an example of a junction-temperature
calculation, assuming the following conditions:
1) Video standard = 525/60/2:1.
2) Video format = RGB with syncs on all.
3) Picture content = 100% white.
4) The input signal is AC-coupled.
5) The output signal is DC-coupled.
6) VCC = 5.0V.
7) ICC = 26mA.
P
VV
V
R
DOn
CC
ORMSn
Ln
=
()×
MAX11501
MAX11502
220
μF
(OPTIONAL)
75
Ω
75
Ω
OUT_
220
μF
(OPTIONAL)
75
Ω
75
Ω
MAX11501
MAX11502
OUT_
(a)
(b)
220
μF
(OPTIONAL)
75
Ω
75
Ω
Figure 5. Typical Output Loads
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX11501EVKIT+ | 功能描述:視頻 IC 開發(fā)工具 MAX11501 Eval Kit RoHS:否 制造商:Texas Instruments 產(chǎn)品:Evaluation Boards 類型:YPbPr to RGBHV Converters 工具用于評估:LMH1251 工作電源電壓:5 V |
| MAX11501USA | 制造商:MAXIM 功能描述:Pb Free |
| MAX11501USA+ | 功能描述:視頻 IC 3Ch 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 |
| MAX11501USA+T | 功能描述:視頻 IC 3Ch 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 |
| MAX11502USA | 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:Three-Channel, Standard-Definition Video Filters |
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