參數(shù)資料
型號： MAX4357ECD+TD
廠商： Maxim Integrated Products
文件頁數(shù)： 30/42頁
文件大?。?/td> 0K
描述： IC VIDEO CROSSPOINT SWIT 128TQFP
產(chǎn)品培訓(xùn)模塊： Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標(biāo)準(zhǔn)包裝： 250
功能： 視頻交叉點(diǎn)開關(guān)
電路： 1 x 32:16
電壓電源： 單/雙電源
電壓 - 電源，單路/雙路(±)： 5V，± 3 V ~ 5 V
工作溫度： -40°C ~ 85°C
安裝類型： 表面貼裝
封裝/外殼： 128-LQFP
供應(yīng)商設(shè)備封裝： 128-LQFP（14x20）
包裝： 帶卷 (TR)
MAX4357
32 x 16 Nonblocking Video Crosspoint Switch
with I/O Buffers
36
______________________________________________________________________________________
A single R-C does not affect the performance at video
frequencies, but in a very large system there may be
many R-Cs cascaded in series. The cumulative effect is
a slight rolling off of the high frequencies causing a
"softening" of the picture. There are two solutions to
achieve higher performance. One way is to design the
PC board traces associated with the outputs such that
they exhibit some inductance. By routing the traces in a
repeating "S" configuration, the traces that are nearest
each other exhibit a mutual inductance increasing the
total inductance. This series inductance causes the
amplitude response to increase or peak at higher fre-
quencies, offsetting the rolloff from the parasitic capaci-
tance. Another solution is to add a small-value inductor
to the output.
Crosstalk and Board Routing Issues
Improper signal routing causes performance problems.
The MAX4357 has a typical crosstalk rejection of
-62dB at 6MHz. A bad PC board layout degrades the
crosstalk rejection by 20dB or more. To achieve the
best crosstalk performance:
1. Place ground isolation between long critical signal
PC board trace runs. These traces act as a shield to
potential interfering signals. Crosstalk can be
degraded from parallel traces as well as directly
above and below on adjoining PC board layers.
Table 5. Output Selection Programming
OUTPUT ADDRESS BIT
B3 (MSB)
B2
B1
B0 (LSB)
SELECTED OUTPUT
0
000
0
001
1
0
010
2
0
011
3
0
100
4
0
101
5
0
110
6
0
111
7
1
000
8
1
001
9
1
010
10
1
011
11
1
100
12
1
101
13
1
110
14
1
111
15
INPUTS
(0–31)
OUTPUTS (16–31)
32
IN
16
OUT
32
IN
16
OUT
32
IN
16
OUT
32
IN
16
OUT
MAX4357
INPUTS
(32–63)
INPUTS
(64–95)
INPUTS
(96–127)
32
IN
16
OUT
32
IN
16
OUT
32
IN
16
OUT
32
IN
16
OUT
MAX4357
OUTPUTS (0–15)
Figure 6. 128 x 32 Nonblocking Matrix Using 32 x 16
Crosspoint Devices
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MAX4358ECE 功能描述:視頻開關(guān) IC RoHS:否 制造商:Texas Instruments 開關(guān)數(shù)量:4 開啟電阻（最大值）:12 Ohms 傳播延遲時間: 開啟時間（最大值）: 關(guān)閉時間（最大值）: 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:WQFN-42 封裝:Reel
MAX4358ECE+ 功能描述:視頻開關(guān) IC 32x16 Nonblocking Video Crx Switch RoHS:否 制造商:Texas Instruments 開關(guān)數(shù)量:4 開啟電阻（最大值）:12 Ohms 傳播延遲時間: 開啟時間（最大值）: 關(guān)閉時間（最大值）: 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:WQFN-42 封裝:Reel
MAX4358ECE+D 功能描述:視頻開關(guān) IC 32x16 Nonblocking Video Crx Switch RoHS:否 制造商:Texas Instruments 開關(guān)數(shù)量:4 開啟電阻（最大值）:12 Ohms 傳播延遲時間: 開啟時間（最大值）: 關(guān)閉時間（最大值）: 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:WQFN-42 封裝:Reel
MAX4358ECE+T 功能描述:視頻開關(guān) IC 32x16 Nonblocking Video Crx Switch RoHS:否 制造商:Texas Instruments 開關(guān)數(shù)量:4 開啟電阻（最大值）:12 Ohms 傳播延遲時間: 開啟時間（最大值）: 關(guān)閉時間（最大值）: 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:WQFN-42 封裝:Reel
MAX4358ECE+TD 功能描述:視頻開關(guān) IC 32x16 Nonblocking Video Crx Switch RoHS:否 制造商:Texas Instruments 開關(guān)數(shù)量:4 開啟電阻（最大值）:12 Ohms 傳播延遲時間: 開啟時間（最大值）: 關(guān)閉時間（最大值）: 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:WQFN-42 封裝:Reel
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