參數(shù)資料
型號(hào)： SY89858U
廠商： Micrel Semiconductor,Inc.
英文描述： PRECISION CML RUNT PULSE ELIMINATOR 2:1 MUX WITH 1:2 FANOUT AND INTERNAL TERMINATION
中文描述： 精密白血病短脈沖消除2:1 1:2扇出和內(nèi)部終端復(fù)用器
文件頁(yè)數(shù)： 9/10頁(yè)
文件大?。?/td> 956K
代理商： SY89858U
Micrel
SY89858U
November 2004
M9999-110504
hbwhelp@micrel.com
or (408) 955-1690
9
LVPECL Output Interface Applications
LVPECL has high input impedance, and very low
output impedance (open emitter), and 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: Parallel
Termination-Thevenin
Termination
Termination. Unused output pairs may be left
floating. However, single-ended outputs must be
terminated, or balanced.
Equivalent,
and
Parallel
(3-resistor),
AC-coupled
R2
82
R2
82
For +2.5V systems,
R1 = 250
,
R2 = 62.5
Z
O
= 50
Z
O
= 50
+3.3V
+3.3V
V
T
= V
CC
—2V
R1
130
R1
130
+3.3V
Figure 4a. Parallel Termination-Thevenin Equivalent
Z = 50
Z = 50
50
50
+3.3V
+3.3V
“source”
“destination”
R
b
V
CC
C1 (optional)
0.01
μ
F
Notes:
1. Power-saving alternative to Thevenin termination.
2. Place termination resistors as close to destination inputs as possible.
3. R
b
resistor sets the DC bias voltage, equal to V
T
.
4. For 2.5V systems, R
b
= 19
,
For 3.3V systems, R
b
= 50
Figure 4b. Parallel Termination (3-Resistor)
Related Product and Support Documentation
Part Number
Function
Data Sheet Link
SY58032U
Ultra-Precision 1:8 LVPECL Fanout Buffer
w/Internal Termination
www.micrel.com/product-info/products/sy58032u.shtml
MLF
TM
Application Note
www.amkor.com/products/notes_papers/MLFAppNote.pdf
HBW Solutions
New Products and Applications
www.micrel.com/product-info/products/solutions.shtml
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SYH-480-000-S STOPFEN GUMMI ROT SORTIMENT Inhalt pro Packung: 67 Stk.
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
SY89858U_07 制造商:MICREL 制造商全稱:Micrel Semiconductor 功能描述:Precision Low Power 1:8 LVPECL Fanout Buffer with Internal Termination
SY89858U_10 制造商:MICREL 制造商全稱:Micrel Semiconductor 功能描述:Precision Low Power 1:8 LVPECL
SY89858UMG 功能描述:緩沖器和線路驅(qū)動(dòng)器 2.5V/3.3V Low Power 1:8 LVPECL Fanout Buffer with Internal Input Termination RoHS:否 制造商:Micrel 輸入線路數(shù)量:1 輸出線路數(shù)量:2 極性:Non-Inverting 電源電壓-最大:+/- 5.5 V 電源電壓-最小:+/- 2.37 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Reel
SY89858UMG TR 功能描述:緩沖器和線路驅(qū)動(dòng)器 2.5V/3.3V Low Power 1:8 LVPECL Fanout Buffer with Internal Input Termination RoHS:否 制造商:Micrel 輸入線路數(shù)量:1 輸出線路數(shù)量:2 極性:Non-Inverting 電源電壓-最大:+/- 5.5 V 電源電壓-最小:+/- 2.37 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Reel
SY89858UMGTR 制造商:Micrel Inc 功能描述:Clock Fanout Buffer 16-OUT 32-Pin MLF T/R
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