參數(shù)資料
型號: MAX4358ECE+
廠商: Maxim Integrated Products
文件頁數(shù): 31/43頁
文件大小: 0K
描述: IC VIDEO CROSSPOINT SWIT 144TQFP
標準包裝: 60
功能: 視頻交叉點開關(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: 144-TQFP
供應(yīng)商設(shè)備封裝: 144-TQFP(20x20)
包裝: 管件
MAX4358
32 x 16 Nonblocking Video Crosspoint Switch
with On-Screen Display Insertion and I/O Buffers
______________________________________________________________________________________
37
Total capacitance is the sum of the capacitance of all
the disabled outputs and is a function of the size of the
matrix. Also, as the size of the matrix increases, the
length of the PC board traces increases, adding more
capacitance. The output buffers have been designed to
drive more than 30pF of capacitance while still main-
taining a good AC response. Depending on the size of
the array, the capacitance seen by the output can
exceed this amount. There are several ways to improve
the situation. The first is to use more building-block
crosspoint devices to reduce the number of outputs
that need to be wired together (see Figure 7).
In Figure 7, the additional devices are placed in a sec-
ond bank to multiplex the signals. This reduces the
number of wired-OR connections. Another solution is to
put a small resistor in series with the output before the
capacitive load to limit excessive ringing and oscilla-
tions. Figure 8 shows the graph of the Optimal Isolation
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
MAX4358
Figure 7. 128 x 16 Nonblocking Matrix with Reduced Capacitive
Loading
0
10
5
20
15
25
30
0
500
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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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
MAX4358ECE-T 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