參數(shù)資料
型號(hào): DG884DN-E3
廠商: Vishay Siliconix
文件頁(yè)數(shù): 3/14頁(yè)
文件大?。?/td> 0K
描述: IC VIDEO MULTIPLEXER 8X4
標(biāo)準(zhǔn)包裝: 300
功能: 視頻交叉點(diǎn)開(kāi)關(guān)
電路: 1 x 8:4
導(dǎo)通狀態(tài)電阻: 90 歐姆
電壓電源: 單/雙電源
電壓 - 電源,單路/雙路(±): 10 V ~ 18 V,±10 V ~ 15 V
電流 - 電源: 1.5mA
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 44-LCC(J 形引線)
供應(yīng)商設(shè)備封裝: 44-PLCC(16.59x16.59)
包裝: 管件
Document Number: 70071
S-71241–Rev. H, 25-Jun-07
www.vishay.com
11
Vishay Siliconix
DG884
DEVICE DESCRIPTION
Readback
The I/O facility enables the user to write data to the Next
Event latches or to read the contents of the Current Event
latches. This feature permits the central controller to
periodically monitor the state of the matrix. If a power loss to
the controller occurs, the readback feature helps the matrix
to recover rapidly. It also offers a means to perform PC board
diagnostics both in production and in system operation.
APPLICATIONS
Figure 12. Control Circuitry
/
Mux 3 Decoder
4
/
4
Q0
Q3
Next
Event
Latch
3
/
7
Current
Event
Latch
3
Data
Buffers
/ 4
CMOS
Output
Buf
fers
/
9
8
8 Analog Inputs
Mux 1
OUT1
8 T-Switches
1 Series Switch
8
Mux 2
OUT2
8
OUT3
Mux 4
OUT4
EN
DIS3
Open Drain
Output
A0
A1
A2
A3
CS
WR
SALVO
I/O
B0
B1
RS
Decoders/
Drivers
One of Four Blocks of Logic/Latches Shown
Figure 13. Fully Buffered 8 x 4 Crosspoint
WR
SALVO
IN1
IN2
IN8
DG884
B0 B1 A0 A1 A2 A3
RESET
RS
DIS1
OUT1
Two-Si584
Quad Unity-Gain Buffers
CLC410
75
Ω
75
Ω
Note: DIS outputs are used to
power down the Si582 amplifiers.
x2
DIS2
OUT2
x2
DIS3
OUT3
x2
DIS4
OUT4
x2
x1
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