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参数资料
| 型号： | PI5A100QE |
| 厂商： | PERICOM SEMICONDUCTOR CORP |
| 元件分类： | 多路复用及模拟开关 |
| 英文描述： | 4-CHANNEL, FOUR POLE DOUBLE THROW SWITCH, PDSO16 |
| 封装： | GREEN, QSOP-16 |
| 文件页数： | 2/12页 |
| 文件大小： | 512K |
| 代理商： | PI5A100QE |
10
PS7012H
08/30/04
PI5A100
Precision, Wide-Bandwidth, Quad SPDT Analog Switch
Applications
Audio Muting Function
Figure 8 shows the PI5A100 in an audio card muting application.
The original problem was one of excessive popping/clicking noise
appearing when connecting disconnecting external loads, and at
poweron/off.ThePI5A100performsamutingfunctionbygrounding
the outputs at power on/off and during the transition time. The
32 headset impedance demands a very low and very flat switch-
on resistance to reduce THD and signal loss.
Figure 10: The PI5A100 momentarily mutes the stereo outputs by connecting them to ground during transition times.
Paralleling two sections of the PI5A100 produces a Ron of 2.5
with an unsurpassed
±0.5 flatness.
To handle AC signals it was necessary to power the device with
±3V provided by two Zener diodes: Z1 and Z2. The select and
Enable control signals are shifted by using twpo 2.5VZener diodes
Z3,Z4 and pull down resistors connected to -3V.
Vcc
GND
Select
J2
J1
Z1/Z2 - Dual SMT 3.0V Zener
32!
22k!
2.5V
-3V
Stereo Audio
Output
2.5V
Z3
Z4
Enable
Z1
Z2
+5V
-5V
-3V
Stereo Audio
Input
From DAC
10k
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相关代理商/技术参数 |
参数描述 |
|---|---|
| PI5A100QEX | 功能描述:模拟开关 IC Quad SPDT Analog Switch RoHS:否 制造商:Texas Instruments 开关数量:2 开关配置:SPDT 开启电阻（最大值）:0.1 Ohms 切换电压（最大）: 开启时间（最大值）: 关闭时间（最大值）: 工作电源电压:2.7 V to 4.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:DSBGA-16 |
| PI5A100QX | 制造商:Pericom Semiconductor Corporation 功能描述:Analog Switch Quad SPDT 16-Pin QSOP T/R |
| PI5A100W | 功能描述:IC SWITCH QUAD SPDT 16SOIC RoHS:否 类别:集成电路 (IC) >> 接口 - 模拟开关，多路复用器，多路分解器 系列:- 标准包装:48 系列:- 功能:开关 电路:4 x SPST - NO 导通状态电阻:100 欧姆 电压电源:单/双电源 电压 - 电源，单路/双路(±):2 V ~ 12 V，±2 V ~ 6 V 电流 - 电源:50nA 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:16-SOIC（0.154"，3.90mm 宽） 供应商设备封装:16-SOIC 包装:管件 |
| PI5A100WE | 功能描述:模拟开关 IC Quad SPDT Analog Switch RoHS:否 制造商:Texas Instruments 开关数量:2 开关配置:SPDT 开启电阻（最大值）:0.1 Ohms 切换电压（最大）: 开启时间（最大值）: 关闭时间（最大值）: 工作电源电压:2.7 V to 4.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:DSBGA-16 |
| PI5A100WEX | 功能描述:模拟开关 IC Quad SPDT Analog Switch RoHS:否 制造商:Texas Instruments 开关数量:2 开关配置:SPDT 开启电阻（最大值）:0.1 Ohms 切换电压（最大）: 开启时间（最大值）: 关闭时间（最大值）: 工作电源电压:2.7 V to 4.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:DSBGA-16 |
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