参数资料
型号: MAX4029EUP+
厂商: Maxim Integrated Products
文件页数: 13/13页
文件大小: 0K
描述: IC AMP VIDEO MUX 2:1 20-TSSOP
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 74
应用: 2:1 多路复用器-放大器
电路数: 4
-3db带宽: 210MHz
转换速率: 300 V/µs
电流 - 电源: 38mA
电流 - 输出 / 通道: 30mA
电压 - 电源,单路/双路(±): 4.5 V ~ 5.5 V
安装类型: 表面贴装
封装/外壳: 20-TSSOP(0.173",4.40mm 宽)
供应商设备封装: 20-TSSOP
包装: 管件
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, RT.
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.
MAX4028/MAX4029
Triple/Quad, 2:1 Video
Multiplexer-Amplifiers with Input Clamps
_______________________________________________________________________________________
9
Table 2. MAX4029 Clamp Settings for Video Formats
INPUT
FORMAT
CLAMP/KEY
1
Cvbs1
Clamp
2
Cvbs2
Clamp
3
Cvbs3
Clamp
4
Cvbs4
Clamp
Gs, B, R have sync only on Green.
INPUT
FORMAT
CLAMP/KEY
1H-Sync
Clamp
2G
Key
3B
Key
4R
Key
R, G, B have sync on none.
INPUT
FORMAT
CLAMP/KEY
1Y
Clamp
2C
Key
3
Cvbs
Clamp
4
Cvbs
Clamp
R, G, B have sync on all.
RT
75
RT
75
RT
75
OUT_
IN_A
IN_B
A/B
DISABLE
0.1
F
75
CABLE
75
CABLE
RT
75
0.1
F
75
CABLE
RKEYREF
MAX4028
MAX4029
CLAMP
Figure 3. Video Line Driver
INPUT
FORMAT
CLAMP/KEY
1Gs
Clamp
2R
Key
3B
Key
4
Cvbs
Clamp
INPUT
FORMAT
CLAMP/KEY
1Y
Clamp
2Pr
Key
3Pb
Key
4
Cvbs
Clamp
INPUT
FORMAT
CLAMP/KEY
1
Cvbs
Clamp
2G’
Clamp
3B’
Clamp
4R’
Clamp
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MAX4029EUP+ 功能描述:视频放大器 Triple & Quad 2:1 Video MUX-Amplifier 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
MAX4029EUP+T 功能描述:视频放大器 Triple & Quad 2:1 Video MUX-Amplifier 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
MAX4029EUP-T 功能描述:视频放大器 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
MAX4029EVKIT 制造商:Maxim Integrated Products 功能描述:TRIPLE/QUAD, 2:1 VIDEO MULTIPLEXER-AMPLIFIERS - Bulk
MAX4029EWP 功能描述:视频放大器 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