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參數(shù)資料
| 型號： | PI5A100Q |
| 廠商： | Pericom Semiconductor Corp. |
| 英文描述： | Precision, Wide-Bandwidth Quad SPDT Analog Switch |
| 中文描述： | 精密，寬帶寬四路SPDT模擬開關 |
| 文件頁數(shù)： | 10/12頁 |
| 文件大?。?/td> | 512K |
| 代理商： | PI5A100Q |
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
power on/off. The PI5A100 performs a muting function by grounding
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 2.5V Zener 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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| PI5A100W | Precision, Wide-Bandwidth Quad SPDT Analog Switch |
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| PI5A100QE | 功能描述:模擬開關 IC Quad SPDT Analog Switch RoHS:否 制造商:Texas Instruments 開關數(shù)量:2 開關配置:SPDT 開啟電阻（最大值）:0.1 Ohms 切換電壓（最大）: 開啟時間（最大值）: 關閉時間（最大值）: 工作電源電壓:2.7 V to 4.5 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:DSBGA-16 |
| PI5A100QEX | 功能描述:模擬開關 IC Quad SPDT Analog Switch RoHS:否 制造商:Texas Instruments 開關數(shù)量:2 開關配置:SPDT 開啟電阻（最大值）:0.1 Ohms 切換電壓（最大）: 開啟時間（最大值）: 關閉時間（最大值）: 工作電源電壓:2.7 V to 4.5 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體: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 類別:集成電路 (IC) >> 接口 - 模擬開關，多路復用器，多路分解器 系列:- 標準包裝:48 系列:- 功能:開關 電路:4 x SPST - NO 導通狀態(tài)電阻:100 歐姆 電壓電源:單/雙電源 電壓 - 電源，單路/雙路(±):2 V ~ 12 V，±2 V ~ 6 V 電流 - 電源:50nA 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:16-SOIC（0.154"，3.90mm 寬） 供應商設備封裝:16-SOIC 包裝:管件 |
| PI5A100WE | 功能描述:模擬開關 IC Quad SPDT Analog Switch RoHS:否 制造商:Texas Instruments 開關數(shù)量:2 開關配置:SPDT 開啟電阻（最大值）:0.1 Ohms 切換電壓（最大）: 開啟時間（最大值）: 關閉時間（最大值）: 工作電源電壓:2.7 V to 4.5 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:DSBGA-16 |
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