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参数资料
| 型号： | DG643 |
| 厂商： | Vishay Intertechnology,Inc. |
| 英文描述： | Low On-Resistance Wideband/Video Switches |
| 中文描述： | 低导通电阻宽带/视频开关 |
| 文件页数： | 1/10页 |
| 文件大小： | 103K |
| 代理商： | DG643 |
DG641/642/643
Vishay Siliconix
Document Number: 70058
S-52433—Rev. E, 06-Sep-99
www.vishay.com FaxBack 408-970-5600
4-1
Low On-Resistance Wideband/Video Switches
Wide Bandwidth: 500 MHz
Low Crosstalk at 5 MHz: –85 dB
Low r
DS(on)
: 5
TTL Logic Compatible
Fast Switching: t
ON
50 ns
Single Supply Compatibility
High Current: 100 mA, DG642
, DG642
High Precision
Improved Frequency Response
Low Insertion Loss
Improved System Performance
Reduced Board Space
Low Power Consumption
RF and Video Switching
RGB Switching
Video Routing
Cellular Communications
ATE
Radar/FLIR Systems
Satellite Receivers
Programmable Filters
The DG641/642/643 are high performance monolithic video
switches designed for switching wide bandwidth analog and
digital signals. DG641 is a quad SPST, DG642 is a single
SPDT, and DG643 is a dual SPDT function. These devices
have exceptionally low on-resistances (5 typ—DG642), low
capacitance and high current handling capability.
To achieve TTL compatibility, low channel capacitances and
fast switching times, the DG641/642/643 are built on the
Vishay Siliconix proprietary D/CMOS process. Each switch
conducts equally well in both directions when on, and blocks
up to 14 V
p-p
when off. An epitaxial layer prevents latchup.
SW
1
, SW
2
OFF
ON
DG641
IN
1
IN
2
D
1
D
2
S
1
S
2
V–
V+
GND
GND
S
4
S
3
D
4
D
3
IN
4
IN
3
Dual-In-Line and SOIC
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
Top View
Logic “0”
Logic “1”
0.8 V
2.4 V
Logic
Switch
0
1
OFF
ON
Logic “0”
Logic “1”
0.8 V
2.4 V
Logic
SW
2
0
1
ON
OFF
Logic “0”
Logic “1”
0.8 V
2.4 V
Logic
0
1
DG642
D
2
GND
Dual-In-Line and SOIC
S
2
S
1
IN
D
1
V+
V–
1
2
3
4
8
7
6
5
Top View
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
Top View
IN
1
IN
2
D
1
D
2
GND
GND
S
1
S
2
V–
V+
S
4
S
3
GND
GND
D
4
D
3
Dual-In-Line and SOIC
DG643
SW
1
OFF
ON
SW
3
, SW
4
ON
OFF
相关PDF资料 |
PDF描述 |
|---|---|
| DG643DJ | Low On-Resistance Wideband/Video Switches |
| DG643DY | Low On-Resistance Wideband/Video Switches |
| DG884AM | 8 x 4 Wideband Video Crosspoint Array |
| DG884AM883 | 8 x 4 Wideband Video Crosspoint Array |
| DG884 | 8 x 4 Wideband Video Crosspoint Array(8 x 4宽带视频交叉开关) |
相关代理商/技术参数 |
参数描述 |
|---|---|
| DG643DJ | 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 |
| DG643DJ-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 | 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 |
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