参数资料
型号: DG643DJ-E3
厂商: Vishay Siliconix
文件页数: 18/18页
文件大小: 0K
描述: IC VIDEO SWITCH SPDT 16DIP
标准包装: 500
功能: 视频开关
电路: 2 x SPDT
导通状态电阻: 15 欧姆
电压电源: 单/双电源
电压 - 电源,单路/双路(±): 10 V ~ 18 V,±10 V ~ 15 V
电流 - 电源: 3.5mA
工作温度: -40°C ~ 85°C
安装类型: 通孔
封装/外壳: 16-DIP(0.300",7.62mm)
供应商设备封装: 16-PDIP
包装: 管件
Document Number: 70058
S11-0154-Rev. F, 31-Jan-11
www.vishay.com
9
Vishay Siliconix
DG641, DG642, DG643
APPLICATIONS
Board Layout
PCB layout rules for good high frequency performance must
also be observed to achieve the performance boasted by
these analog switches. Some tips for minimizing stray effects
are:
1.
Use extensive ground planes on double sided PCB,
separating adjacent signal paths. Multilayer PCB is
even better.
2.
Keep signal paths as short as practically possible,
with all channel paths of near equal length.
3.
Careful arrangement of ground connections is also
very important. Star connected system grounds
eliminate signal current, flowing through ground path
parasitic
resistance,
from
coupling
between
channels.
Figure 8 shows a 4-channel video multiplexer using a
DG641.
In Figure 9, two coax cables terminated on 75
bring two
video signals to the DG642 switch. The two drains tied
together lower the on-state capacitance. An Si582 video
amplifier drives a double terminated 75
cable. The double
terminated coax cable eliminates line reflections.
Figure 7. Supply Decoupling
+
- 3 V
GNDs
+ 15 V
DG64X
V+
V-
S1
S2
S3
S4
D1
D2
D3
D4
C1
C2
C1
C2
C1 = 10 F Tantalum
C2 = 0.1 F Ceramic
Figure 8. 4 by 1 Video Multiplexing Using the DG641
+
-
+ 15 V
V+
V-
- 3 V
TTL Channel Select
A = 2
75
250
Si582
CH1
CH2
CH3
CH4
DG641
DIS
75
75
75
75
250
相关PDF资料
PDF描述
DG641DJ-E3 IC VIDEO SWITCH SPDT 16DIP
DG642DJ-E3 IC VIDEO SWITCH SPDT 8DIP
DG542DY-T1-E3 IC SWITCH QUAD SPST 16SOIC
VI-21Y-IV-F4 CONVERTER MOD DC/DC 3.3V 99W
DG541DY-T1-E3 IC SWITCH QUAD SPST 16SOIC
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DG643DY 功能描述:视频开关 IC SPDT Analog 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
DG643DY-E3 功能描述:视频开关 IC SPDT Analog 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
DG643DY-T1 功能描述:多路器开关 IC Wideband Dual SPDT RoHS:否 制造商:Texas Instruments 通道数量:1 开关数量:4 开启电阻(最大值):7 Ohms 开启时间(最大值): 关闭时间(最大值): 传播延迟时间:0.25 ns 工作电源电压:2.3 V to 3.6 V 工作电源电流: 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:UQFN-16
DG643DY-T1-E3 功能描述:视频开关 IC Wideband Dual SPDT 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
DG646BH 制造商:未知厂家 制造商全称:未知厂家 功能描述:GTO Thyristors - Disc / Puk Devices