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参数资料
| 型号： | LA7955 |
| 元件分类： | 多路复用及模拟开关 |
| 英文描述： | DUAL 3-CHANNEL, AUDIO/VIDEO SWITCH, PDIP20 |
| 封装： | 0.300 INCH, PLASTIC, DIP-20 |
| 文件页数： | 3/7页 |
| 文件大小： | 95K |
| 代理商： | LA7955 |
LA7955
No.2740-3/7
Package Dimensions
unit : mm (typ)
3021C
Pin Assignments
Separate pin layouts for the video and audio systems
facilitate board design.
Law impedance lines (VCC, GND and control input)
between the input and output pins minimize crosstalk
caused by the high frequency of the video section.
Two pairs of switches with 3 inputs and 2 outputs are
symmetrically placed for the audio system
Switching Truth Table
VIDEO OUT
AUDIO OUT
CONTROL1
(Pin 4)
CONTROL2
(Pin 8)
MUTE IN
(Pin 10)
1
2
1L
2L
1R
2R
L
IN1
L
H
L
IN1
IN3
IN1
IN3
IN1
IN3
H
L
IN2
H
L
IN2
IN3
IN2
IN3
IN2
IN3
L
H
IN1
-
IN1
-
L
H
IN1
IN3
IN1
-
IN1
-
H
L
H
IN2
-
IN2
-
H
IN2
IN3
IN2
-
IN2
-
SANYO : DIP20(300mil)
1
10
20
11
0.5
(3
.25)
3.3
3.9max
24.0
(0.57)
2.54
1.2
0.25
7.62
6.4
0.51mi
n
1.0
Pd max – Ta
0
800
600
400
200
1000
– 20
62
60
20
40
080
Ambient temperature, Ta – °C
Allowable
power
dissipation,
Pd
max
–
m
W
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
LA7955
Video input 1
Mute input
Video output 2
Switch control signal input 2
Video input 3
VCC
Video output 1
Switch control signal input 1
Video input 2
GND
Top view
Audio output 1 (LCH)
Audio output 1 (RCH)
Audio input 1 (RCH)
Audio input 2 (RCH)
Audio input 3 (RCH)
Audio output 2 (RCH)
Audio output 2 (LCH)
Audio input 3 (LCH)
Audio input 2 (LCH)
Audio input 1 (LCH)
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LA7956 | 制造商:Panasonic Industrial Company 功能描述:IC |
| LA7957 | 制造商:SANYO 制造商全称:Sanyo Semicon Device 功能描述:Video Switch for TV/VCR Use |
| LA7958 | 制造商:SANYO 制造商全称:Sanyo Semicon Device 功能描述:For TV, VTR Audio/Video Switch |
| LA7958_11 | 制造商:SANYO 制造商全称:Sanyo Semicon Device 功能描述:Audio/Video Switch |
| LA7958N-E | 制造商:ON Semiconductor 功能描述:AV SW IC - Ammo Pack 制造商:ON Semiconductor 功能描述:FNFLD / AV SW IC |
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