- 您现在的位置：买卖IC网 > PDF目录8571 > MAX4029EUP+T (Maxim Integrated Products)IC VIDEO MUX-AMP 20-TSSOP PDF资料下载
参数资料
| 型号： | MAX4029EUP+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 12/13页 |
| 文件大小： | 0K |
| 描述： | IC VIDEO MUX-AMP 20-TSSOP |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 1 |
| 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： | 标准包装 |
| 产品目录页面： | 1423 (CN2011-ZH PDF) |
| 其它名称： | MAX4029EUP+TDKR |
MAX4028/MAX4029
Therefore, a 6k
resistor will produce a 1.13V key-
clamp voltage as shown in Figure 2. The clamp voltage
(VCLAMP) is measured at the output; the voltage at the
input is VCLAMP (sync tip or key clamp) divided by the
gain (+2V/V) + VBE.
In order for these clamps (sync tip or key) to work proper-
ly, the input must be coupled with a 0.1F capacitor (typ)
with low leakage (<1A to 2A, max). Without proper cou-
pling, the clamp voltage will change during the horizontal
line time causing the “black level” to vary, changing the
image brightness from left to right on the display. In addi-
tion to the capacitor, a low resistance (
≤75) is required
on the source side to return the capacitor to ground. The
clamps used here are active devices with the coupling
capacitor serving two functions; first, as a charge reser-
voir to maintain the clamp voltage, and second, as the
compensation capacitor for the clamp itself. If an input is
not used, it must be terminated to avoid causing oscilla-
tions that could couple with another input.
In general, a sync-tip clamp is used for composite video
(Cvbs), gamma-corrected primaries (R’G’B’), and the
luma signal (Y) in S-video. A key clamp is preferred for
component color difference signals (Pb and Pr), linear
primaries (RGB in PCs), and chroma (C) in S-video. The
rule is to sync tip clamp a signal if sync is present and
key clamp all others. Several examples are given in the
Clamp/Key-Clamp Settings for Video Formats section.
Clamp/Key-Clamp Settings for Video Formats
Tables 1 and 2 provide the clamp settings on the
MAX4028/MAX4029 to interface with various video formats.
Low-Power, High-Impedance Disable Mode
All parts feature a low-power, high-impedance disable
mode that is activated by driving the DISABLE input
low. Placing the amplifier in disable mode reduces the
quiescent supply current and places the output imped-
ance at 2k
typically. Multiple devices can be paral-
leled to construct larger switch matrices by connecting
the outputs of several devices together and disabling
all but one of the paralleled amplifiers’ outputs.
Triple/Quad, 2:1 Video
Multiplexer-Amplifiers with Input Clamps
8
_______________________________________________________________________________________
KEY-CLAMP REFERENCE VOLTAGE
vs. RKEYREF
MAX4028
fig02
RKEYREF (k
)
KEY-CLAMP
REFERENCE
VOLTAGE
(V)
11
9
7
5
3
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
1.8
0
113
Figure 2. Key-Clamp Reference Voltage vs. RKEYREF
Table 1. MAX4028 Clamp Settings for Video Formats
INPUT
FORMAT
CLAMP/KEY
1
Cvbs1
Clamp
2
Cvbs2
Clamp
3
Cvbs3
Clamp
INPUT
FORMAT
CLAMP/KEY
1G’
Clamp
2B’
Clamp
3R’
Clamp
R, G, B have sync on all.
INPUT
FORMAT
CLAMP/KEY
1Gs
Clamp
2B
Key
3R
Key
Gs, B, R have sync only on Green.
INPUT
FORMAT
CLAMP/KEY
1Y
Clamp
2C
Key
3
Cvbs
Clamp
INPUT
FORMAT
CLAMP/KEY
1Y
Clamp
2Pb
Key
3Pr
Key
相关PDF资料 |
PDF描述 |
|---|---|
| VI-2NP-IV-F3 | CONVERTER MOD DC/DC 13.8V 150W |
| LTC1595AIS8#TRPBF | IC D/A CONV 16BIT MULTPLYNG8SOIC |
| VI-2NN-IV-F2 | CONVERTER MOD DC/DC 18.5V 150W |
| LTC1595AIS8#TR | IC DAC 16BIT MULTIPLY SER 8SOIC |
| VI-2NM-IV-F3 | CONVERTER MOD DC/DC 10V 150W |
相关代理商/技术参数 |
参数描述 |
|---|---|
| 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 |
| MAX4029EWP+ | 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 |
| MAX4029EWP+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 |
| MAX4029EWP-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 |
发布紧急采购，3分钟左右您将得到回复。