hbwhelp@micrel.com or (408) 955-1690 LVPECL Output Int" />
參數(shù)資料
型號: SY89473UMG
廠商: Micrel Inc
文件頁數(shù): 2/11頁
文件大?。?/td> 0K
描述: IC MUX LVPECL 2:1 PREC 24MLF
標準包裝: 75
系列: SY89
類型: 多路復用器
電路: 1 x 2:1
獨立電路: 1
電壓電源: 單電源
電源電壓: 3 V ~ 3.6 V
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 24-VFQFN 裸露焊盤,24-MLF?
供應商設備封裝: 24-MLF?(4x4)
包裝: 管件
產品目錄頁面: 1090 (CN2011-ZH PDF)
其它名稱: 576-1453
Micrel, Inc.
SY89473U
May 2007
10
M9999-052207-B
hbwhelp@micrel.com or (408) 955-1690
LVPECL Output Interface Applications
LVPECL has a high input impedance, a very low
output impedance (open emitter), and a small signal
swing which results in low EMI. LVPECL is ideal for
driving
50-
and-100-controlled
impedance
transmission lines. There are several techniques for
terminating the LVPECL output including: Parallel
Termination-Thevenin
Equivalent,
Parallel
Termination
(3-resistor),
and
AC-coupled
Termination. Unused output pairs may be left
floating. However, single-ended outputs must be
terminated, or balanced.
Note:
1.
For +2.5V systems, R1 = 250, R2 = 62.5.
Figure 4a. Parallel Termination-Thevenin Equivalent
Note:
1.
Power-saving alternative to Thevenin termination.
2.
Place termination resistors as close to destination inputs as
possible.
3.
Rb resistor sets the DC bias voltage, equal to VT.
4.
For 2.5V systems, Rb = 19.
Figure 4b. Parallel Termination (3-Resistor)
Related Product and Support Information
Part Number
Function
Data Sheet Link
SY89474U
Precision LVDS 2:1 Multiplexer with
1:2 Fanout and Internal Termination
www.micrel.com/product-info/products/sy89474u.shtml
SY89475U
Precision CML 2:1 Multiplexer with
1:2 Fanout and Internal Termination
www.micrel.com/product-info/products/sy89475u.shtml
HBW
Solutions
New Products and Applications
www.micrel.com/product-info/products/solutions.shtml
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相關代理商/技術參數(shù)
參數(shù)描述
SY89473UMG TR 功能描述:編碼器、解碼器、復用器和解復用器 2.5/3.3V 2:1 LVPECL MUX w/ 1:2 Fanout (I Temp, Green) RoHS:否 制造商:Micrel 產品:Multiplexers 邏輯系列:CMOS 位數(shù): 線路數(shù)量(輸入/輸出):2 / 12 傳播延遲時間:350 ps, 400 ps 電源電壓-最大:2.625 V, 3.6 V 電源電壓-最小:2.375 V, 3 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:QFN-44 封裝:Tray
SY89473UMGTR 制造商:MICREL 制造商全稱:Micrel Semiconductor 功能描述:Precision LVPECL 2:1 Multiplexer with 1:2
SY89474U 制造商:MICREL 制造商全稱:Micrel Semiconductor 功能描述:Precision LVDS 2:1 Multiplexer with 1:2
SY89474U_10 制造商:MICREL 制造商全稱:Micrel Semiconductor 功能描述:Precision LVDS 2:1 Multiplexer with 1:2
SY89474UMG 功能描述:編碼器、解碼器、復用器和解復用器 2.5/3.3V 2:1 LVDS MUX w/ 1:2 Fanout (I Temp, Green) RoHS:否 制造商:Micrel 產品:Multiplexers 邏輯系列:CMOS 位數(shù): 線路數(shù)量(輸入/輸出):2 / 12 傳播延遲時間:350 ps, 400 ps 電源電壓-最大:2.625 V, 3.6 V 電源電壓-最小:2.375 V, 3 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:QFN-44 封裝:Tray