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參數(shù)資料
| 型號： | SY58012UMITR |
| 廠商： | MICREL INC |
| 元件分類： | 時鐘及定時 |
| 英文描述： | 5GHz, 1:2 LVPECL FANOUT BUFFER/TRANSLATOR WITH INTERNAL INPUT TERMINATION |
| 中文描述： | 58012 SERIES, LOW SKEW CLOCK DRIVER, 2 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> | 118K |
| 代理商： | SY58012UMITR |
8
Precision Edge
SY58012U
Micrel
Part Number
Function
Data Sheet Link
SY58011U
7GHz, 1:2 CML Fanout Buffer/Translator
With Internal Input Termnations
http://www.micrel.com/product-info/products/sy58011u.shtml
SY58012U
5GHz, 1:2 LVPECL Fanout Buffer/Translator
With Internal Input Termination
http://www.micrel.com/product-info/products/sy58012u.shtml
SY58013U
6GHz, 1:2 Fanout Buffer/Translator w/400mV
LVPECL Outputs and Internal Terminations
http://www.micrel.com/product-info/products/sy58013u.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
Z
O
= 50
Z
O
= 50
+3.3V*
+3.3V*
V
T
= V
CC
—
2V
R1
130
R1
130
+3.3V*
Figure 5. Parallel Termination-Thevenin Equivalent
Note 1.
Note 2.
For +2.5V systems: R1 = 250
, R2 = 62.5
For +3.3V systems: R1 = 130
, R2 = 82
Z = 50
Z = 50
50
50
50
+3.3V
+3.3V
source
destination
Rb
C1
0.01
μ
F
(optional)
Figure 6. Three-Resistor
“
Y
–
Termination
”
Note 1.
Note 2.
Note 3.
Power-saving alternative to Thevenin termination.
Place termination resistors as close to destination inputs as possible.
R
b
resistor sets the DC bias voltage, equal to V
T
.
For +2.5V systems R
b
= 19
.
For +3.3V systems R
b
= 46
to 50
.
C1 is an optional bypass capacitor intended to compensate for any
t
r
/t
f
mismatches.
Note 4.
LVPECL OUTPUT
+3.3V
+3.3V
Z
O
= 50
R2
82
+3.3V
+3.3V
R1
130
R1
130
R2
82
V
T
= V
CC
—
2V
Q
/Q
R4
1k
R3
1.6k
V
T
= V
CC
—
1.3V
Figure 7. Terminating Unused I/O
Note 1.
Note 2.
Unused output (/Q) must be terminated to balance the output.
For +2.5V systems: R1 = 250
, R2 = 62.5
, R3 = 1.25k
,
R4 = 1.2k
.
For +3.3V systems: R1 = 130
, R2 = 82
, R3 = 1k
, R4 = 1.6k
.
Unused output pairs (Q and /Q) may be left floating.
Note 3.
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 5
through 7.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SY58013U | 制造商:MICREL 制造商全稱:Micrel Semiconductor 功能描述:6GHz, 1:2 FANOUT BUFFER/TRANSLATOR w/400mV LVPECL OUTPUTS and INTERNAL INPUT TERMINATION |
| SY58013U_07 | 制造商:MICREL 制造商全稱:Micrel Semiconductor 功能描述:6GHz, 1:2 FANOUT BUFFER/TRANSLATOR w/400mV LVPECL OUTPUTS and INTERNAL INPUT TERMINATION |
| SY58013U_11 | 制造商:MICREL 制造商全稱:Micrel Semiconductor 功能描述:6GHz, 1:2 FANOUT BUFFER/TRANSLATOR w/400mV LVPECL OUTPUTS |
| SY58013UMG | 功能描述:緩沖器和線路驅(qū)動器 Ultra High Speed 1:2 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 |
| SY58013UMG TR | 功能描述:緩沖器和線路驅(qū)動器 Ultra High Speed 1:2 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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