參數(shù)資料
型號: SY58032U_07
廠商: Micrel Semiconductor,Inc.
英文描述: ULTRA-PRECISION 1:8 FANOUT vBUFFER WITH LVPECL OUTPUTS AND INTERNAL TERMINATION
中文描述: 超精密1:8扇出vBUFFER有LVPECL輸出和內部終端
文件頁數(shù): 7/8頁
文件大?。?/td> 535K
代理商: SY58032U_07
7
Precision Edge
SY58032U
Micrel, Inc.
M9999-020707
hbwhelp@micrel.com or (408) 955-1690
Part Number
SY58031U
Function
Ultra-Precision 1:8 Fanout Buffer with 400mV CML
Outputs and Internal I/O Termination
Ultra-Precision 1:8 Fanout Buffer with LVPECL
Outputs and Internal Termination
Ultra-Precision 1:8 Fanout Buffer with 400mV LVPECL
Outputs and Internal Termination
32-MLF
Manufacturing Guidelines Exposed Pad
Application Note
HBW Solutions
Data Sheet Link
http://www.micrel.com/product-info/products/sy58031u.shtml
SY58032U
http://www.micrel.com/product-info/products/sy58032u.shtml
SY58033U
http://www.micrel.com/product-info/products/sy58033u.shtml
www.amkor.com/products/notes_papers/MLF_AppNote_0902.pdf
http://www.micrel.com/product-info/as/solutions.shtml
RELATED MICREL PRODUCTS AND SUPPORT DOCUMENTATION
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 4. Parallel Termination-Thevenin Equivalent
LVPECL OUTPUT
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 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.
Z = 50
Z = 50
50
50
+3.3V
+3.3V
“source”
“destination”
V
CC
C1 (optional)
0.01
μ
F
R
b
Notes:
1. Power-saving alternative to Thevenin termination.
2. Place termination resistors as close to destination inputs as possible.
3. R
resistor sets the DC bias voltage, equal to V
.
4. For 2.5V systems, R
b
= 19
,
For 3.3V systems, R
b
= 50
Figure 5. Parallel Termination (3-Resistor)
相關PDF資料
PDF描述
SY58032U ULTRRA-PRECISION 1:8 FANOUT BUFFER WITH LVPECL OUTPUTS AND INTERNAL TERMINATION
SY58032UMG ULTRRA-PRECISION 1:8 FANOUT BUFFER WITH LVPECL OUTPUTS AND INTERNAL TERMINATION
SY58032UMGTR ULTRRA-PRECISION 1:8 FANOUT BUFFER WITH LVPECL OUTPUTS AND INTERNAL TERMINATION
SY58032UMI ULTRRA-PRECISION 1:8 FANOUT BUFFER WITH LVPECL OUTPUTS AND INTERNAL TERMINATION
SY58032UMITR ULTRRA-PRECISION 1:8 FANOUT BUFFER WITH LVPECL OUTPUTS AND INTERNAL TERMINATION
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SY58032UMI TR 功能描述:IC CLOCK BUFFER 1:8 4GHZ 32-MLF RoHS:否 類別:集成電路 (IC) >> 時鐘/計時 - 時鐘緩沖器,驅動器 系列:Precision Edge® 標準包裝:1 系列:HiPerClockS™ 類型:扇出緩沖器(分配),多路復用器 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 供應商設備封裝:32-TQFP(7x7) 包裝:- 其它名稱:800-1923-6