參數資料
型號： DG541AP
英文描述： Wideband/Video “T” Switches
中文描述： 寬帶/視頻“T”型開關
文件頁數： 9/10頁
文件大?。?/td> 154K
代理商： DG541AP
DG540/541/542
Siliconix
S-53694—Rev. E, 28-May-97
9
Applications (Cont’d)
Power Supplies
A useful feature of the DG54X family is its power supply
flexibility. It can be operated from a single positive supply
(V+) if required (V– connected to ground).
Note that the analog signal must not exceed V– by more
than –0.3 V to prevent forward biasing the substrate p-n
junction. The use of a V– supply has a number of
advantages:
8 %003;7 *0)<-&-0-8= -2 %2%03+ 7-+2%0 ,%2(0-2+ -)
;-8, ! ! %2( ! ! 94 83
7-+2%07 '%2 &) '3286300)(
>! %'
,) :%09) 3* 32 '%4%'-8%2') "
6)(9')( 4634)68= /23;2 %7 $8,) &3(=>)**)'8 32
8,)
7;-8',
():-')7
4%6%1)86-' )**)'87 83 3''96 2) 3* 8,)7) )**)'87 -7
8,) 6)(9'8-32 -2
32
&3(=7396') 38) ,3;):)6 8,%8 83 -2'6)%7) !
2361%00= 6)59-6)7 ! 83 &) 6)(9')( 7-2') ! 83
! ! 1%< )(9'8-32 -2 ! '%97)7 %2
-2'6)%7) -2 6
32
,)2') % '314631-7) ,%7 83 &)
%',-):)( 8 -7 %073 97)*90 83 238) 8,%8 348-191
:-()3 0-2)%6-8= 4)6*361%2') )+ (-**)6)28-%0 4,%7)
%2( +%-2 3''967 ;,)2 ! -7 %6392( !
32
# 1%= &)
'%97)7
:%6-397
*36 %2 -2'6)%7-2+ !
! )0-1-2%8)7 8,) 2))( 83 &-%7 8,) %2%03+ 7-+2%0
97-2+
438)28-%0
(-:-()67
'%4%'-8367
%2(
0%6+)
'3940-2+
Decoupling
It is an established RF design practice to incorporate
sufficient bypass capacitors in the circuit to decouple the
power supplies to all active devices in the circuit. The
dynamic performance of the DG54X is adversely affected
by poor decoupling of power supply pins. Also, of even
more significance, since the substrate of the device is
connected to the negative supply, adequate decoupling of
this pin is essential.
Rules:
)'3940-2+ '%4%'-8367 7,390( &) -2'36436%8)( 32
%00 43;)6 79440= 4-27 ! ! )) -+96)
,)= 7,390( &) 13928)( %7 '037) %7 4377-&0) 83 8,)
():-') 4-27
%4%'-8367 7,390( ,%:) +33( ,-+, *6)59)2'=
',%6%'8)6-78-'7 8%28%091 &)%( %2(36 13230-8,-'
')6%1-' 8=4)7 %6) %()59%8)
9-8%&0) ()'3940-2+ '%4%'-8367 %6) > 83 >
8%28%091 &)%( 4097 > 83 >2 ')6%1-'
+
+
–3 V
GNDs
+15 V
DG540
V+
V–
S
1
S
2
S
3
S
4
D
1
D
2
D
3
D
4
C
1
C
2
C
1
C
2
C
1
= 10 F Tantalum
C
2
= 0.1 F Ceramic
Figure 7.
Supply Decoupling
Board Layout
PCB layout rules for good high frequency performance
must be observed to achieve the performance boasted by the
DG540. Some tips for minimizing stray effects are:
7) )<8)27-:) +6392( 40%2)7 32 (39&0) 7-()(
7)4%6%8-2+ %(.%')28 7-+2%0 4%8,7 908-0%=)6 -7
):)2 &)88)6
))4 7-+2%0 4%8,7 %7 7,368 %7 46%'8-'%00= 4377-&0)
;-8, %00 ',%22)0 4%8,7 3* 2)%6 )59%0 0)2+8,
%6)*90 %66%2+)1)28 3* +6392( '322)'8-327 -7 %073
:)6= -14368%28 8%6 '322)'8)( 7=78)1 +6392(7
)0-1-2%8) 7-+2%0 '966)28 *03;-2+ 8,639+, +6392(
4%8, 4%6%7-8-' 6)7-78%2') *631 '3940-2+ &)8;))2
',%22)07
相關PDF資料
PDF描述
DG541DJ Wideband/Video “T” Switches
DG541DY Wideband/Video “T” Switches
DG542 Wideband/Video “T” Switches
DG549CJ Interface IC
DG548AK Interface IC
相關代理商/技術參數
參數描述
DG541AP/883 制造商:VISHAY 制造商全稱:Vishay Siliconix 功能描述:Wideband/Video T Switches
DG541AP-883 制造商:VISHAY 制造商全稱:Vishay Siliconix 功能描述:Wideband/Video 'T' Switches
DG541DJ 功能描述:視頻開關 IC SPST Wideband T-Sw RoHS:否 制造商:Texas Instruments 開關數量:4 開啟電阻（最大值）:12 Ohms 傳播延遲時間: 開啟時間（最大值）: 關閉時間（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
DG541DJ 制造商:Vishay Siliconix 功能描述:SWITCH QUAD SPST VIDEO 350MHZ DIP
DG541DJ-E3 功能描述:視頻開關 IC SPST Wideband T-Sw RoHS:否 制造商:Texas Instruments 開關數量:4 開啟電阻（最大值）:12 Ohms 傳播延遲時間: 開啟時間（最大值）: 關閉時間（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
發(fā)布緊急采購，3分鐘左右您將得到回復。

采購需求

(若只采購一條型號，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進入我的后臺，查看報價

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進入我的后臺，查看報價

*型號 *數量 廠商 批號 封裝
添加更多采購

我的聯系方式

*
*
*