参数资料
型号: MAX4357ECD+TD
厂商: Maxim Integrated Products
文件页数: 31/42页
文件大小: 0K
描述: IC VIDEO CROSSPOINT SWIT 128TQFP
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 250
功能: 视频交叉点开关
电路: 1 x 32:16
电压电源: 单/双电源
电压 - 电源,单路/双路(±): 5V,± 3 V ~ 5 V
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 128-LQFP
供应商设备封装: 128-LQFP(14x20)
包装: 带卷 (TR)
MAX4357
32 x 16 Nonblocking Video Crosspoint Switch
with I/O Buffers
______________________________________________________________________________________
37
2. Maintain controlled-impedance traces. Design as
many of the PC board traces as possible to be 75Ω
transmission lines. This lowers the impedance of the
traces reducing a potential source of crosstalk. More
power dissipates due to the output buffer driving a
lower impedance.
3. Minimize ground current interaction by using a good
ground plane strategy.
In addition to crosstalk, another key issue of concern is
isolation. Isolation is the rejection of undesirable feed-
through from input to output with the output disabled.
The MAX4357 achieves a -110dB isolation at 6MHz by
selecting the pinout configuration such that the inputs
and outputs are on opposite sides of the package.
Coupling through the power supply is a function of the
quality and location of the supply bypassing. Use
appropriate low-impedance components and locate
them as close as possible to the IC. Avoid routing the
inputs near the outputs.
Table 6. Input Selection Programming
INPUT ADDRESS BIT
B4
(MSB)
B3
B2
B1
B0
(LSB)
SELECTED
INPUT
00
0
00
0
1
00
0
1
0
2
00
0
1
3
00
1
0
4
00
1
0
1
5
00
1
0
6
00
1
7
01
0
8
01
0
1
9
01
0
1
0
10
01
0
1
11
01
1
0
12
01
1
0
1
13
01
1
0
14
01
1
15
10
0
16
10
0
1
17
10
0
1
0
18
10
0
1
19
10
1
0
20
10
1
0
1
21
10
1
0
22
10
1
23
11
0
24
11
0
1
25
11
0
1
0
26
11
0
1
27
11
1
0
28
11
1
0
1
29
11
1
0
30
11
1
31
INPUTS (0–31)
INPUTS (32–63)
INPUTS (64–95)
INPUTS (96–127)
OUTPUTS (0–15)
32
IN
16
OUT
32
IN
16
OUT
32
IN
16
OUT
32
IN
16
OUT
16
IN
16
IN
16
OUT
MAX4357
Figure 7. 128 x 16 Nonblocking Matrix with Reduced Capacitive
Loading
0
10
5
20
15
25
30
0500
OPTIMAL ISOLATION RESISTANCE
vs. CAPACITIVE LOAD
CAPACITIVE LOAD (pF)
ISOLATION
RESISTANCE
)
200
100
300
400
Figure 8. Optimal Isolation Resistor vs. Capacitive Load
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参数描述
MAX4358ECE 功能描述:视频开关 IC RoHS:否 制造商:Texas Instruments 开关数量:4 开启电阻(最大值):12 Ohms 传播延迟时间: 开启时间(最大值): 关闭时间(最大值): 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:WQFN-42 封装:Reel
MAX4358ECE+ 功能描述:视频开关 IC 32x16 Nonblocking Video Crx Switch RoHS:否 制造商:Texas Instruments 开关数量:4 开启电阻(最大值):12 Ohms 传播延迟时间: 开启时间(最大值): 关闭时间(最大值): 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:WQFN-42 封装:Reel
MAX4358ECE+D 功能描述:视频开关 IC 32x16 Nonblocking Video Crx Switch RoHS:否 制造商:Texas Instruments 开关数量:4 开启电阻(最大值):12 Ohms 传播延迟时间: 开启时间(最大值): 关闭时间(最大值): 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:WQFN-42 封装:Reel
MAX4358ECE+T 功能描述:视频开关 IC 32x16 Nonblocking Video Crx Switch RoHS:否 制造商:Texas Instruments 开关数量:4 开启电阻(最大值):12 Ohms 传播延迟时间: 开启时间(最大值): 关闭时间(最大值): 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:WQFN-42 封装:Reel
MAX4358ECE+TD 功能描述:视频开关 IC 32x16 Nonblocking Video Crx Switch RoHS:否 制造商:Texas Instruments 开关数量:4 开启电阻(最大值):12 Ohms 传播延迟时间: 开启时间(最大值): 关闭时间(最大值): 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:WQFN-42 封装:Reel