參數(shù)資料
型號(hào): DG540DJ-E3
廠商: Vishay Siliconix
文件頁(yè)數(shù): 17/18頁(yè)
文件大小: 0K
描述: IC SWITCH QUAD SPST 20DIP
標(biāo)準(zhǔn)包裝: 495
功能: 視頻開(kāi)關(guān)
電路: 4 x SPST - NO
導(dǎo)通狀態(tài)電阻: 60 歐姆
電壓電源: 單/雙電源
電壓 - 電源,單路/雙路(±): 10 V ~ 18 V,±10 V ~ 15 V
電流 - 電源: 3.5mA
工作溫度: -40°C ~ 85°C
安裝類(lèi)型: 通孔
封裝/外殼: 20-DIP(0.300",7.62mm)
供應(yīng)商設(shè)備封裝: 20-PDIP
包裝: 管件
www.vishay.com
8
Document Number: 70055
S11-1429–Rev. H, 18-Jul-11
Vishay Siliconix
DG540, DG541, DG542
This document is subject to change without notice.
THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000
TEST CIRCUITS
APPLICATIONS
Device Description
The DG540, DG541, DG542 family of wideband switches
offers true bidirectional switching of high frequency analog or
digital signals with minimum signal crosstalk, low insertion
loss, and negligible non-linearity distortion and group delay.
Built on the Siliconix D/CMOS process, these "T" switches
provide excellent off-isolation with a bandwidth of around
500 MHz (350 MHz for DG541). Silicon-gate D/CMOS
processing also yields fast switching speeds.
An on-chip regulator circuit maintains TTL input compatibility
over the whole operating supply voltage range, easing
control logic interfacing.
Circuit layout is facilitated by the interchangeability of source
and drain terminals.
Frequency Response
A single switch on-channel exhibits both resistance (RDS(on))
and capacitance (CS(on)). This RC combination has an
attenuation effect on the analog signal – which is frequency
dependent (like an RC low-pass filter). The - 3-dB bandwidth
of the DG540 is typically 500 MHz (into 50
). This measured
figure of 500 MHz illustrates that the switch channel can not
be represented by a two stage RC combination. The on
capacitance of the channel is distributed along the on-
resistance, and hence becomes a more complex multi stage
network of R’s and C’s making up the total RDS(on) and
CS(on). See Application Note AN502 for more details.
Off-Isolation and Crosstalk
Off-isolation and crosstalk are affected by the load
resistance and parasitic inter-electrode capacitances. Higher
off-isolation is achieved with lower values of RL. However,
low values of RL increase insertion loss requiring gain
adjustments down the line. Stray capacitances, even a
fraction of 1 pF, can cause a large crosstalk increase. Good
layout and ground shielding techniques can considerably
improve your ac circuit performance.
Figure 6. All Hostile Crosstalk
S2
S3
S4
X
TA LK(AH)
=
20 log
10
V
OUT
V
IN
VO
10
Ω
RL
75
Ω
INX
S1
V+
V-
+ 15 V
- 15 V
C
GND
2.4 V
D2
D3
D1
D4
RL
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
DG540DN 功能描述:視頻開(kāi)關(guān) IC SPST Wideband T-Sw RoHS:否 制造商:Texas Instruments 開(kāi)關(guān)數(shù)量:4 開(kāi)啟電阻(最大值):12 Ohms 傳播延遲時(shí)間: 開(kāi)啟時(shí)間(最大值): 關(guān)閉時(shí)間(最大值): 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:WQFN-42 封裝:Reel
DG540DN-E3 功能描述:視頻開(kāi)關(guān) IC SPST Wideband T-Sw RoHS:否 制造商:Texas Instruments 開(kāi)關(guān)數(shù)量:4 開(kāi)啟電阻(最大值):12 Ohms 傳播延遲時(shí)間: 開(kāi)啟時(shí)間(最大值): 關(guān)閉時(shí)間(最大值): 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:WQFN-42 封裝:Reel
DG541 制造商:Siemens 功能描述:
DG541AP 功能描述:視頻開(kāi)關(guān) IC SPST Wideband T-Sw RoHS:否 制造商:Texas Instruments 開(kāi)關(guān)數(shù)量:4 開(kāi)啟電阻(最大值):12 Ohms 傳播延遲時(shí)間: 開(kāi)啟時(shí)間(最大值): 關(guān)閉時(shí)間(最大值): 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:WQFN-42 封裝:Reel
DG541AP/883 制造商:VISHAY 制造商全稱:Vishay Siliconix 功能描述:Wideband/Video T Switches