100LVEL11 3.3V ECL 1:2 Differential Fanout Buffer
January 2003
Revised January 2003
100LVEL11
3.3V ECL 1:2 Differential Fanout Buffer
General Description
The 100LVEL11 is a low voltage 1:2 differential fanout
buffer. One differential input signal is fanned out to two
identical differential outputs. By supplying a constant refer-
ence level to one input pin a single ended input condition is
created.
With inputs Open or both inputs at V
EE
, the differential Q
outputs default LOW and Q outputs default HIGH.
The 100 series is temperature compensated.
Features
s
Typical propagation delay of 330 ps
s
Typical I
EE
of 24 mA
s
Typical skew of 5 ps between outputs
s
Internal pull-down resistors on D
s
Fairchild MSOP-8 package is a drop-in replacement to
ON TSSOP-8
s
Meets or exceeds JEDEC specification EIA/JESD78 IC
latch-up tests
s
Moisture Sensitivity Level 1
s
ESD Performance:
Human Body Model
>
2000V
Machine Model
>
200V
Ordering Code:
Package
Order Number
100LVEL11M
100LVEL11M8
(Preliminary)
Number
M08A
MA08D
Product
Code
Top Mark
KVL11
KV11
8-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150" Narrow
8-Lead Molded Small Outline Package (MSOP), JEDEC MO-187, 3.0mm Wide
Package Description
Devices also available in Tape and Reel. Specify by appending suffix letter “X” to the ordering code.
Connection Diagram
Logic Diagram
Top View
Pin Descriptions
Pin Name
Q
0
, Q
0
, Q
1
, Q
1
D, D
V
CC
V
EE
Description
ECL Data Outputs
ECL Data Inputs
Positive Supply
Negative Supply
© 2003 Fairchild Semiconductor Corporation
DS500775
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100LVEL11
Absolute Maximum Ratings
(Note 1)
PECL Supply Voltage (V
CC
) V
EE
=
0V
NECL Supply Voltage (V
EE
) V
CC
=
0V
PECL DC Input Voltage (V
I
) V
EE
=
0V
NECL DC Input Voltage (V
I
) V
CC
=
0V
DC Output Current (I
OUT
)
Continuous
Surge
Storage Temperature (T
STG
)
50 mA
100 mA
0.0V to
+
8.0V
0.0V to
−
8.0V
0.0V to
+
6.0V
0.0V to
−
6.0V
Recommended Operating
Conditions
PECL Power Supply Operating
(V
EE
=
0V)
NECL Power Supply Operating
(V
CC
=
0V)
Free Air Operating Temperature (T
A
)
V
EE
= −
3.8V to
−
3.0V
V
CC
=
3.0V to 3.8V
−
40
°
C to
+
85
°
C
−
65
°
C to
+
150
°
C
Note 1:
The “Absolute Maximum Ratings” are those values beyond which
the safety of the device cannot be guaranteed. The device should not be
operated at these limits. The parametric values defined in the Electrical
Characteristics tables are not guaranteed at the absolute maximum rating.
The “Recommended Operating Conditions” table will define the conditions
for actual device operation.
LVPECL DC Electrical Characteristics
V
CC
=
3.3V; V
EE
=
0.0V (Note 2)
Symbol
I
EE
V
OH
V
OL
V
IH
V
IL
V
IHCMR
Parameter
Power Supply Current
Output HIGH Voltage (Note 3)
Output LOW Voltage (Note 3)
Input HIGH Voltage (Single Ended)
Input LOW Voltage (Single Ended)
Input HIGH Voltage Common Mode
Range (Differential) (Note 4)
V
PP
<
500mV
V
PP
≥
500mV
I
IH
I
IL
Input HIGH Current (Note 5)
Input LOW Current (Note 5)
D
D
0.5
−600
1.2
1.4
3.1
3.1
150
0.5
−600
1.1
1.3
3.1
3.1
150
0.5
−600
1.1
1.3
3.1
3.1
150
V
µA
µA
2215
1470
2135
1490
−40°C
Min
Typ
24
2295
1605
Max
28
2420
1745
2420
1825
2275
1490
2135
1490
Min
25°C
Typ
24
2345
1595
Max
28
2420
1680
2420
1825
2275
1490
2135
1490
Min
85°C
Typ
25
2345
1595
Max
30
2420
1680
2420
1825
Units
mA
mV
mV
mV
mV
Note 2:
Input and output parameters vary 1 to 1 with V
CC
. V
EE
can vary
±
0.3V.
Note 3:
Outputs are terminated through a 50Ω Resistor to V
CC
−
2.0V.
Note 4:
V
IHCMR
minimum varies 1 to 1 with V
EE
. V
IHCMR
maximum varies 1-to-1 with V
CC
. The V
IHCMR
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 V
PPMIN
and
1V.
Note 5:
Absolute value of the input HIGH and LOW current should not exceed the absolute value of the stated Min or Max specification.
Note:
Devices are designed to meet the DC specifications after thermal equilibrium has been established. Circuit is tested with air flow greater than
500LFPM maintained.
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2
100LVEL11
LVNECL DC Electrical Characteristics
V
CC
=
0.0V; V
EE
= −
3.3V (Note 6)
Symbol
I
EE
V
OH
V
OL
V
IH
V
IL
V
IHCMR
Parameter
Power Supply Current
Output HIGH Voltage (Note 7)
Output LOW Voltage (Note 7)
Input HIGH Voltage (Single Ended)
Input LOW Voltage (Single Ended)
Input HIGH Voltage Common Mode
Range (Differential) (Note 8)
V
PP
<
500mV
V
PP
≥
500mV
I
IH
I
IL
Input HIGH Current (Note 9)
Input LOW Current (Note 9)
D
D
0.5
−600
−2.1
−1.9
−0.2
−0.2
150
0.5
−600
−2.2
−2.0
−0.2
−0.2
150
0.5
−600
−2.2
−2.0
−0.2
−0.2
150
V
µA
µA
−1085
−1830
−1165
−1810
−40°C
Min
Typ
24
−1005
−1695
Max
28
−880
−1555
−880
−1475
−1025
−1810
−1165
−1810
Min
25°C
Typ
24
−955
−1705
Max
28
−880
−1620
−880
−1475
−1025
−1810
−1165
−1810
Min
85°C
Typ
25
−955
−1705
Max
30
−880
−1620
−880
-1475
Units
mA
mV
mV
mV
mV
Note 6:
Input and output parameters vary 1 to 1 with V
CC
. V
EE
can vary
±0.3V.
Note 7:
Outputs are terminated through a 50Ω Resistor to V
CC
−
2.0V.
Note 8:
V
IHCMR
minimum varies 1-to-1 with V
EE
. V
IHCMR
maximum varies 1 to 1 with V
CC
. The V
IHCMR
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 V
PPMIN
and
1V.
Note 9:
Absolute value of the input HIGH and LOW current should not exceed the absolute value of the stated Min or Max specification.
Note:
Devices are designed to meet the DC specifications after thermal equilibrium has been established. Circuit is tested with air flow greater than
500LFPM maintained.
AC Electrical Characteristics
V
CC
=
3.3V; V
EE
=
0.0V or V
CC
=
0.0V; V
EE
= −
3.3V (Note 10)(Note 11)
Symbol
f
MAX
t
PLH
, t
PHL
t
SKEW
t
JITTER
V
PP
t
r
, t
f
Parameter
Maximum Toggle Frequency
Propagation Delay to Output
Within Device Skew (Note 12)
Duty Cycle Skew (Note 13)
Cycle-to-Cycle Jitter
Input Swing
Output Rise Times Q (20% to 80%)
200
120
−40°C
Min
1
215
5
5
TBD
1000
320
200
120
385
20
20
Typ
Max
Min
1
235
330
5
5
TBD
1000
320
200
120
405
20
20
25°C
Typ
Max
Min
1
250
5
5
TBD
1000
320
mV
ps
Figure 1
Figure 2
435
20
20
85°C
Typ
Max
Units
GHz
ps
ps
Figure 1
Figure
Number
Note 10:
V
EE
can vary
±0.3V.
Note 11:
Measured using a 750 mV input swing centered at V
CC
−
1.32V; 50% duty cycle clock source; t
r
=
t
f
=
250 ps (20% - 80%) at f
IN
=1
MHz. All loading
with 50Ω to V
CC
−
2.0V.
Note 12:
Within-device skew defined as identical transitions on similar paths through a device.
Note 13:
Duty cycle skew is the difference between a t
PLH
and t
PHL
propagation delay through a device under identical conditions.
3
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100LVEL11
Switching Waveforms
FIGURE 1. Differential to Differential Propagation Delay
FIGURE 2. Differential Output Edge Rates
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4
100LVEL11
Physical Dimensions
inches (millimeters) unless otherwise noted
8-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150" Narrow
Package Number M08A
5
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