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CA3256E

更新时间： 2024-02-01 14:23:17
品牌 Logo 应用领域
哈里斯 - HARRIS 开关放大器
页数 文件大小 规格书
11页 393K
描述
25MHz, BiMOS Analog Video Switch and Amplifier

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中文翻译

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CA3256E 技术参数

是否Rohs认证：不符合生命周期：Obsolete
包装说明：,Reach Compliance Code：unknown
HTS代码：8542.39.00.01风险等级：5.6
Is Samacsys：N模拟集成电路 - 其他类型：AUDIO/VIDEO SWITCH
JESD-30 代码：R-PDSO-G20JESD-609代码：e0
信道数量：5功能数量：1
端子数量：20标称断态隔离度：66 dB
通态电阻匹配规范：70 Ω最大通态电阻 (Ron)：1400 Ω
最高工作温度：85 °C最低工作温度：-40 °C
封装主体材料：PLASTIC/EPOXY封装形状：RECTANGULAR
封装形式：SMALL OUTLINE峰值回流温度（摄氏度）：NOT SPECIFIED
认证状态：Not Qualified最大供电电流 (Isup)：26 mA
标称供电电压 (Vsup)：12 V表面贴装：YES
技术：BIMOS温度等级：INDUSTRIAL
端子面层：Tin/Lead (Sn/Pb)端子形式：GULL WING
端子位置：DUAL处于峰值回流温度下的最长时间：NOT SPECIFIED
Base Number Matches：1

CA3256E 数据手册

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Semiconductor  
CA3256  
25MHz, BiMOS Analog  
Video Switch and Amplifier  
January 1999  
Features  
Description  
[ /Title  
(CA32  
56)  
/Sub-  
ject  
(25MH  
z,  
BiMO  
S Ana-  
log  
Video  
Switch  
and  
Ampli-  
fier)  
/Autho  
r ()  
/Key-  
words  
(Har-  
ris  
• 5 Multiplex Video Channels  
- 1 Independent Channel  
- 4 Channels with Enable  
The CA3256 BiMOS analog video switch has five channels  
of CMOS multiplex switching for general-purpose video-  
signal control. One of four CMOS channels may be selected  
in parallel with channel 5. The CMOS switches are inputs to  
the video amplifier but may be used in bilateral switching  
between channels 1 to 4 and channel 5. The analog  
switches of channels 1 to 4 are digitally controlled with logic  
level conversion and binary decoding to select 1 of 4  
channels. The enable function controls channels 1 to 4 but  
does not affect channel 5. LED output drivers are selected  
with the channel 1-to-4 switch selection to indicate the ON-  
channel. Channel 5 may be used as a monitor output for  
data or signal information on channels 1 to 4. The  
transmission gate switches shown in the block diagram of  
the CA3256 are configured in a “T” design to minimize  
feedthrough. When the switch is off, the shunt or center of  
the “T” is grounded.  
• 4 LED Channel Indicator Outputs  
• Wideband Video Amplifier . . . . . . . .25MHz Unity Gain  
• Adjustable Video Amplifier Gain  
• High Signal-Drive Capability  
Applications  
• Video Multiplex Switch  
• 75Ω Video Amplifier/Line Driver  
• Video Signal-Level Control  
• Monitor Switching Control  
• TV/CATV Audio/Video Switch  
• Video Signal Adder/Fader Control  
The amplifier has high input impedance to minimize the R  
ON  
transmission gate insertion loss. The amplifier output imped-  
ance is typically 5Ω in a complementary symmetry output.  
The amplifier can directly drive a nominal 75Ω coaxial cable  
to provide line-to-line video switching. The gain of the ampli-  
fier is programmable by different feedback resistor values  
between pins 8 and 9. Compensation may also be used  
between these pins for an optimally flat frequency response.  
An internal regulated 5V bias reference with temperature  
compensation permits stable direct-coupled output drive and  
minimizes DC offset during signal switching.  
Part Number Information  
TEMP.  
PKG.  
NO.  
o
PART NUMBER RANGE ( C)  
PACKAGE  
18 Ld PDIP  
20 Ld SOIC  
CA3256E  
CA3256M  
-40 to 85  
-40 to 85  
E18.3  
M20.3  
Semi-  
con-  
ductor,  
4x1,  
Pinouts  
video  
cross-  
point  
switch,  
multi-  
plexer  
multi-  
plexor,  
cable  
driver,  
5x1,  
CA3256  
(PDIP)  
CA3256  
(SOIC)  
TOP VIEW  
TOP VIEW  
IN 3  
LED 4  
IN 4  
1
2
3
4
5
6
7
8
9
18 CONTROL B  
17  
1
2
3
4
5
6
7
8
9
CONTROL B  
IN2  
IN3  
LED4  
20  
19  
IN 2  
IN4  
16 CONTROL A  
15 IN 1  
18 CONTROL A  
17 NC  
GND  
GND  
V-  
16 IN1  
V-  
14 V+  
ENABLE  
CONTROL C  
FEEDBACK  
AMP OUT  
V+  
15  
ENABLE  
13 IN/OUT 5  
12 LED 1  
11 LED 2  
10 LED 3  
14 IN/OUT5  
13 NC  
CONTROL C  
FEEDBACK  
AMP OUT  
moni  
tor out-  
put,  
adjust-  
able  
12  
LED1  
LED3 10  
11 LED2  
gain,  
CAUTION: These devices are sensitive to electrostatic discharge. Users should follow proper IC Handling Procedures.  
File Number 1769.5  
Copyright © Harris Corporation 1999  
8-1  
1234567...11

中文翻译

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