參數(shù)資料
型號： SY58021UMI
廠商： MICREL INC
元件分類： 時鐘及定時
英文描述： 4GHz, 1:4 LVPECL FANOUT BUFFER/ TRANSLATOR WITH INTERNAL TERMINATION
中文描述： 58021 SERIES, LOW SKEW CLOCK DRIVER, 4 TRUE OUTPUT(S), 0 INVERTED OUTPUT(S), QCC16
封裝： 3 X 3 MM, MLF-16
文件頁數(shù)： 8/9頁
文件大?。?/td> 133K
代理商： SY58021UMI
8
Precision Edge
SY58021U
Micrel, Inc.
M9999-062405
hbwhelp@micrel.com or (408) 955-1690
Part Number
Function
Data Sheet Link
SY58020U
6GHz, 1:4 CML Fanout Buffer/Translator
Internal I/O Termnations
http://www.micrel.com/product-info/products/sy58020u.shtml
SY58021U
4GHz, 1:4 LVPECL Fanout Buffer/Translator
with Internal Termination
http://www.micrel.com/product-info/products/sy58021u.shtml
SY58022U
5.5GHz, 1:4 Fanout Buffer/Translator
w/400mV LVPECL Outputs and Internal Terminations
http://www.micrel.com/product-info/products/sy58022u.shtml
16-MLF
Manufacturing Guidelines
Exposed Pad Application Note
www.amkor.com/products/notes_papers/MLF_AppNote_0902.pdf
M-0317
HBW Solutions
http://www.micrel.com/product-info/as/solutions.shtml
RELATED MICREL PRODUCTS AND SUPPORT DOCUMENTATION
R2
82
R2
82
*Note. 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*
SY58021U
Figure 4. Parallel Termination-Thevenin Equivalent
LVPECL OUTPUT
Z = 50
Z = 50
50
50
50
+3.3V
+3.3V
“
source
”
“
destination
”
R
b
*
C1 (optional)
0.01
μ
F
* For +2.5V, Rb = 19
to 50
Notes:
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.
Figure 5. Parallel Termination (3-Resistor)
SY58021U
V
DD
LVPECL output have 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
in terminating the LVPECL output, as shown in Figures 4
through 6.
R2
82
R2
82
*Note:
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*
SY58021U
Figure 6. Terminating Unused I/O
相關(guān)PDF資料
PDF描述
SY58021UMITR 4GHz, 1:4 LVPECL FANOUT BUFFER/ TRANSLATOR WITH INTERNAL TERMINATION
SY58022U 5.5 GHz 1:4 FANOUT BUFFER/TRANSLATOR w/400mV LVPECL OUTPUTS AND INTERNAL INPUT TERMINATOR
SY58022UMI 5.5 GHz 1:4 FANOUT BUFFER/TRANSLATOR w/400mV LVPECL OUTPUTS AND INTERNAL INPUT TERMINATOR
SY58022UMITR 5.5 GHz 1:4 FANOUT BUFFER/TRANSLATOR w/400mV LVPECL OUTPUTS AND INTERNAL INPUT TERMINATOR
SY58024UMG ULTRA-LOW JITTER DUAL 2 】 2 CROSSPOINT SWITCH w/ CML OUTPUTS AND INTERNAL I/O TERMINATION
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
SY58021UMI TR 功能描述:IC CLK BUFFER TRANSLA 1:4 16-MLF RoHS:否 類別:集成電路 (IC) >> 時鐘/計時 - 時鐘緩沖器，驅(qū)動器 系列:Precision Edge® 標(biāo)準(zhǔn)包裝:1 系列:HiPerClockS™ 類型:扇出緩沖器（分配），多路復(fù)用器 電路數(shù):1 比率 - 輸入:輸出:2:18 差分 - 輸入:輸出:是/無 輸入:CML，LVCMOS，LVPECL，LVTTL，SSTL 輸出:LVCMOS，LVTTL 頻率 - 最大:250MHz 電源電壓:2.375 V ~ 3.465 V 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:32-LQFP 供應(yīng)商設(shè)備封裝:32-TQFP（7x7） 包裝:- 其它名稱:800-1923-6
SY58021UMITR 制造商:MICREL 制造商全稱:Micrel Semiconductor 功能描述:4GHz, 1:4 LVPECL Fanout Buffer/Translator with Internal Termination Precision Edge?
SY58022U 制造商:MICREL 制造商全稱:Micrel Semiconductor 功能描述:5.5 GHz 1:4 FANOUT BUFFER/TRANSLATOR w/400mV LVPECL OUTPUTS AND INTERNAL INPUT TERMINATOR
SY58022U_09 制造商:MICREL 制造商全稱:Micrel Semiconductor 功能描述:5.5GHz 1:4 FANOUT BUFFER/ translator w/400mV LVPECL OUTPUTS
SY58022UMG 功能描述:緩沖器和線路驅(qū)動器 Ultra High Speed 1:4 400mV LVPECL Fanout Buffer/Translator (I Temp, Green) 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
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