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SK100ELT21WU [SEMTECH]

Differential PECL to CMOS/TTL or LVPECL to LVCMOS/LVTTL Translator; 差分PECL到CMOS / TTL或LVPECL到LVCMOS / LVTTL翻译
SK100ELT21WU
型号： SK100ELT21WU
厂家： SEMTECH CORPORATION    SEMTECH CORPORATION
描述：

Differential PECL to CMOS/TTL or LVPECL to LVCMOS/LVTTL Translator
差分PECL到CMOS / TTL或LVPECL到LVCMOS / LVTTL翻译

转换器 电平转换器 驱动程序和接口 锁存器 接口集成电路
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SK10/100ELT21W  
Differential PECL to CMOS/TTL or  
LVPECL to LVCMOS/LVTTL Translator  
HIGH-PERFORMANCE PRODUCTS  
Features  
Description  
• Extended Supply Voltage Range (VCC = +3.0V  
to 5.5V)  
• 2.4 ns Typical Propagation Delay  
• Differential PECL Inputs  
• True Complementary CMOS/TTL Output  
• Flow Through Pinouts  
• Functionally compatible with MC10/100ELT21 and  
MC10/100LVELT21  
• 75KW Internal Input Pulldown Resistors  
• Specified Over Industrial Temperature Range:  
–40oC to 85oC  
The SK10/100ELT21W is a single differential PECL  
to CMOS/TTL or LVPECL to LVCMOS/LVTTL Translator.  
Since PECL (Positive ECL) levels are used, only +V  
and ground are required. The small outline, 8 lead  
SOIC package, low skew, and the single gate design  
of the SK10/100ELT21W makes it ideal for  
applications which require the translation of a clock  
and a data signal.  
CC  
Unlike the TTL totem pole outputs, the outputs of the  
ELT21W can be interfaced directly to CMOS inputs with  
better VOH (VCC – 0.5V) levels. With extended supply  
voltage capability, the device is functionally compatible  
with MC10/100ELT21 (5V) and MC10/100LVELT21  
(3.3V).  
• ESD Protection of >4000V  
• Small Outline 8 Lead SOIC (150 mils) Package  
• Flammability Rate: UL-94 code V-0  
• Moisture Sensitivity: Level 1  
Functional Block Diagram  
PIN Names  
Pin  
Function  
QO  
CMOS/TTL Output  
V
1
2
8
7
CC  
D0, D0*  
Differential PECL Inputs  
NC  
D0  
VBB  
Referenced Voltage Output  
V
CC  
+V Supply  
CC  
TTL  
GND  
NC  
Ground  
Q0  
No Connect  
PECL  
3
4
6
5
D0*  
NC  
V
GND  
BB  
www.semtech.com  
Revision 1/October 16, 2001  
1
SK10/100ELT21W  
HIGH-PERFORMANCE PRODUCTS  
Package Information  
8 Lead SOIC Package  
TOP VIEW  
END VIEW  
C
D
A
8
1
5
0.25  
M
B
M
H
E
B
4
h x 45o  
q
e
A
Seating  
Plane  
C
L
0.10  
A1  
B
S
S
A
0.25 M C B  
MILLIMETERS  
DIM  
A
MIN  
1.35  
0.10  
0.33  
0.19  
4.80  
3.80  
MAX  
1.75  
0.25  
0.51  
0.25  
5.00  
4.00  
A1  
B
NOTES:  
1. Dimensions are in millimeters.  
C
2. Dimensions D and E do no include mold protrusion.  
3. Maximum mold protrusion 0.15 per side.  
4. Dimension B does not include Dambar protrusion.  
Allowable Dambar protrusion shall be 0.127 total  
in excess of the B dimension at maximum material  
condition.  
D
E
e
1.27 BSC  
H
5.80  
0.25  
0.40  
0o  
6.20  
0.50  
1.27  
8o  
h
L
q
Revision 1/October 16, 2001  
www.semtech.com  
2
SK10/100ELT21W  
HIGH-PERFORMANCE PRODUCTS  
DC Characteristics  
SK10/100ELT21W TTL Output DC Electrical Characteristics  
(V = 3.0V to 5.5V; TA = -40 oC to +85 oC)  
CC  
Symbol  
Characteristic  
Min  
Typ  
Max  
Unit  
V
Cond  
V
V
Output HIGH Voltage  
Output LOW Voltage  
Power Supply Current  
VCC - 0.5  
I
= -3 mA  
= 8 mA  
OH  
OL  
OH  
0.5  
32  
V
I
OL  
I
16  
mA  
CC  
SK10ELT21W PECL Input DC Electrical Characteristics  
(V = 3.0V to 5.5V)  
CC  
o
o
o
o
TA = -40 C  
TA = 0 C  
TA = +25 C  
TA = +85 C  
Symbol  
Characteristic  
Min  
Max  
Min Max  
Min  
Max  
Min  
Max  
Unit  
Cond  
3770  
2070  
4110  
2410  
3830  
2130  
4160  
2460  
3870  
2170  
4190  
2490  
3940  
2240  
4280  
2580  
mV  
mV  
VCC = 5.0V  
VCC = 3.3V  
V
Input HIGH Voltage  
IH  
3050  
1350  
3500  
1800  
3050  
1350  
3520  
1820  
3050  
1350  
3520  
1820  
3050  
1350  
3555  
1855  
mV  
mV  
VCC = 5.0V  
VCC = 3.3V  
V
V
Input LOW Voltage  
IL  
Minimum Peak-to-Peak Input  
Input Current (Diff)  
200  
1000  
150  
200  
1000  
150  
200  
1000  
150  
200  
1000  
150  
mV  
µA  
Note 1  
PP  
I
-150  
-150  
-150  
-150  
IN  
3570  
1870  
3700  
2000  
3620  
1920  
3730  
2030  
3650  
1950  
3750  
2050  
3690  
1990  
3810  
2110  
mV  
mV  
VCC = 5.0V  
VCC = 3.3V  
V
Reference Output Voltage  
BB  
SK100ELT21W PECL Input DC Electrical Characteristics  
(V = 3.0V to 5.5V)  
CC  
o
o
o
o
TA = - 40 C  
TA = 0 C  
TA = + 25 C  
TA = + 85 C  
Symbol  
Characteristics  
Min  
Max  
Min  
Max  
Min  
Max  
Min  
Max  
4120  
Unit  
Cond  
3835  
2135  
4120  
2420  
3835  
2135  
4120  
2420  
3835  
2135  
4120  
2420  
3835  
2135  
mV  
mV  
VCC = 5.0V  
VCC = 3.3V  
V
Input HIGH Voltage  
IH  
2420  
3190  
1490  
3525  
1825  
3190  
1490  
3525  
1825  
3190  
1490  
3525  
1825  
3190  
1490  
3525  
1825  
mV  
mV  
VCC = 5.0V  
VCC = 3.3V  
V
V
Input LOW Voltage  
IL  
mV  
Note 1  
Minimum Peak-to-Peak Input  
Input HIGH Current  
200  
1000  
150  
200  
1000  
150  
200  
1000  
150  
200  
1000  
150  
PP  
I
- 150  
- 150  
- 150  
- 150  
mA  
IN  
3620  
1920  
3740  
2040  
3620  
1920  
3740  
2040  
3620  
1920  
3740  
2040  
3620  
1920  
3740  
2040  
mV  
mV  
VCC = 5.0V  
VCC = 3.3V  
V
Reference Output Voltage  
BB  
Revision 1/October 16, 2001  
3
www.semtech.com  
SK10/100ELT21W  
HIGH-PERFORMANCE PRODUCTS  
AC Characteristics  
SK10/100ELT21W AC Electrical Characteristics  
(V = 3.0V to 5.5V)  
CC  
o
o
o
o
TA = - 40 C  
TA = 0 C  
TA = +25 C  
TA = +85 C  
Symbol  
Characteristic  
Min  
Typ  
Max  
Min  
Typ  
Max  
Min  
Typ  
Max  
Min  
Typ  
Max  
Unit  
3
F
max  
Max Input Frequency  
180  
180  
180  
180  
MHz  
t
t
PLH  
PHL  
3
Propagation Delay  
1.95  
0.38  
5.4  
1.95  
5.4  
1.95  
5.4  
1.95  
5.4  
1.5  
ns  
ns  
V
Output Rise/Fall Time  
1.0V to 2.0V  
t , t  
0.75  
1.5  
0.38  
GND  
0.75  
1.5  
0.38  
GND  
0.75  
1.5  
0.38  
GND  
0.75  
r
f
GND  
+ 1.2  
VCC  
- 0.7 + 1.2  
VCC  
- 0.7 + 1.2  
VCC  
- 0.7 + 1.2  
VCC  
- 0.7  
2
VCMR  
Common Mode Range  
Notes:  
1. 200 mV input guarantees full logic swing at the output.  
2. CMR range is referenced to the most positive side of the differential input signal. Normal operation is  
obtained if the high level falls within the specified range and the peak-to-peak voltage lies between  
VPP  
and 1V. The lower end of the CMR range varies 1:1 with GND and is equal to GND + 1.2V.  
(min)  
3. C = 20 pF.  
L
4. For part ordering description, see HPP Part Ordering Information Data Sheet.  
Revision 1/October 16, 2001  
4
www.semtech.com  
SK10/100ELT21W  
HIGH-PERFORMANCE PRODUCTS  
Ordering Information  
Ordering Code  
SK10ELT21WD  
SK10ELT21WDT  
SK100ELT21WD  
SK100ELT21WDT  
SK10ELT21WU  
SK100ELT21WU  
Package ID  
8-SOIC  
8-SOIC  
8-SOIC  
8-SOIC  
Die  
Temperature Range  
Industrial  
Industrial  
Industrial  
Industrial  
Die  
Marking Information  
8 PIN SOIC PACKAGE  
Function / Voltage &  
Device Operation  
Function Code / Part Number  
H = 10  
K = 100  
E
L
Assembly  
Lot Number  
W
W
Y
Y
YY: Last two digits of the Year  
WW: Working Week  
Contact Information  
Semtech Corporation  
High-Performance Products Division  
Division Headquarters  
10021 Willow Creek Road  
San Diego, CA 92131  
Phone: (858) 695-1808  
Marketing Group  
1111 Comstock Street  
Santa Clara, CA 95054  
Phone: (408) 566-8776  
FAX:  
(858) 695-2633  
FAX: (408) 727-8994  
Revision 1/October 16, 2001  
5
www.semtech.com  

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