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參數(shù)資料
| 型號： | MAX4029EWP |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | 運動控制電子 |
| 英文描述： | Triple/Quad, 2:1 Video Multiplexer-Amplifiers with Input Clamps |
| 中文描述： | QUAD 1-CHANNEL, VIDEO MULTIPLEXER, PDSO20 |
| 封裝： | 0.300 INCH, MS-013, SOIC-20 |
| 文件頁數(shù)： | 9/13頁 |
| 文件大?。?/td> | 317K |
| 代理商： | MAX4029EWP |
The MAX4028/MAX4029 have a fixed gain of +2V/V that
is internally set with two 1k
thin-film resistors. The
impedance of the internal feedback resistors must be
taken into account when operating multiple MAX4028/
MAX4029s in large multiplexer applications.
Applications Information
Video Line Driver
The MAX4028/MAX4029 are well suited to drive coaxial
transmission lines when the cable is terminated at both
ends, as shown in
Figure 3, where the fixed gain of
+2V/V compensates for the loss in the resistors, R
T
.
Driving Capacitive Loads
A correctly terminated transmission line is purely resis-
tive and presents no capacitive load to the amplifier.
Reactive loads decrease phase margin and may pro-
duce excessive ringing and oscillation.
Another concern when driving capacitive loads is the
amplifier
’
s output impedance, which appears inductive
at high frequencies. This inductance forms an L-C reso-
nant circuit with the capacitive load, which causes
peaking in the frequency response and degrades the
amplifier
’
s phase margin.
M
Triple/Quad, 2:1 Video
Multiplexer-Amplifiers with Input Clamps
_______________________________________________________________________________________
9
Table 2. MAX4029 Clamp Settings for Video Formats
INPUT
1
2
3
4
FORMAT
Cvbs1
Cvbs2
Cvbs3
Cvbs4
CLAMP/KEY
Clamp
Clamp
Clamp
Clamp
Gs, B, R have sync only on Green.
INPUT
1
2
3
4
FORMAT
H-Sync
G
B
R
CLAMP/KEY
Clamp
Key
Key
Key
R, G, B have sync on none.
INPUT
1
2
3
4
FORMAT
Y
C
Cvbs
Cvbs
CLAMP/KEY
Clamp
Key
Clamp
Clamp
R, G, B have sync on all.
R
T
75
R
T
75
R
T
75
OUT_
IN_A
IN_B
A/B
DISABLE
0.1
μ
F
75
CABLE
75
CABLE
R
T
75
0.1
μ
F
75
CABLE
R
KEYREF
MAX4028
MAX4029
CLAMP
Figure 3. Video Line Driver
INPUT
1
2
3
4
FORMAT
Gs
R
B
Cvbs
CLAMP/KEY
Clamp
Key
Key
Clamp
INPUT
1
2
3
4
FORMAT
Y
Pr
Pb
Cvbs
CLAMP/KEY
Clamp
Key
Key
Clamp
INPUT
1
2
3
4
FORMAT
Cvbs
G
’
B
’
R
’
CLAMP/KEY
Clamp
Clamp
Clamp
Clamp
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX4029EWP+ | 功能描述:視頻放大器 Triple & Quad 2:1 Video MUX-Amplifier 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 |
| MAX4029EWP+T | 功能描述:視頻放大器 Triple & Quad 2:1 Video MUX-Amplifier 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 |
| MAX4029EWP-T | 功能描述:視頻放大器 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 |
| MAX402C/D | 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:Voltage-Feedback Operational Amplifier |
| MAX402CPA | 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:Voltage-Feedback Operational Amplifier |
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