參數(shù)資料
型號(hào)： SY58013UMI
廠商： MICREL INC
元件分類： 時(shí)鐘及定時(shí)
英文描述： 6GHz, 1:2 FANOUT BUFFER/TRANSLATOR w/400mV LVPECL OUTPUTS and INTERNAL INPUT TERMINATION
中文描述： 58013 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(yè)數(shù)： 8/9頁(yè)
文件大?。?/td> 142K
代理商： SY58013UMI
8
Precision Edge
SY58013U
Micrel, Inc.
M9999-051105
hbwhelp@micrel.com or (408) 955-1690
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
= 39
.
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.
OUTPUT TERMINATION RECOMMENDATIONS
LVPECL outputs have very low output impedance (open
emitter), and small signal swing which results in low EMI
(electro-magnetic interference). The LVPECL is ideal for
driving 50
and 100
controlled impedance transmission
lines. In addition, LVPECL is compatible for driving standard
PECL inputs since PECL inputs require only 100mV input
swing. Further, there are several techniques in terminating
the LVPECL outputs, as shown in Figure 5 through 7.
+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.
Part Number
Function
Data Sheet Link
SY58011U
7GHz, 1:2 CML Fanout Buffer/Translator
With Internal I/O Termination
http://www.micrel.com/product-info/prod/ucts/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 Input Termination
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
相關(guān)PDF資料
PDF描述
SY58013UMITR 6GHz, 1:2 FANOUT BUFFER/TRANSLATOR w/400mV LVPECL OUTPUTS and INTERNAL INPUT TERMINATION
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
SY58013UMITR 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
SY58016L 制造商:MICREL 制造商全稱:Micrel Semiconductor 功能描述:ULTRA-PRECISION DIFFERENTIAL 400mV LVPECL 2:1 MUX with INTERNAL TERMINATION
SY58016L_11 制造商:MICREL 制造商全稱:Micrel Semiconductor 功能描述:3.3V, 10Gbps Differential CML Line Driver/Receiver with Internal Termination
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SY58016LMGTR 制造商:MICREL 制造商全稱:Micrel Semiconductor 功能描述:3.3V, 10Gbps Differential CML Line Driver/Receiver with Internal Termination
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