SK10/100EL90W
Triple ECL to PECL/LVPECL and
LVECL to PECL/LVPECL Translator
HIGH-PERFORMANCE PRODUCTS
Description
The SK10/100EL90W is a triple ECL to PECL/LVPECL and
LVECL to PECL/LVPECL translator. It is fully compatible
with MC100EL90 and MC100LVEL90. The SK10/
100EL90W provides a VBB output for single-ended use
or DC bias for AC coupling to the device. VBB is an output
pin and should be used as a bias for the EL90W as its
current source/sink capability is limited. Whenever used,
the VBB output pin should be bypassed to VCC via a 0.01
µF capacitor.
To accomplish levels of translation, the EL90W requires
three power rails, VCC, VEE and GND. Please refer to the
Function Table below for more details. VCC supply should
be connected to the positive supply, and VEE should be
connected to the negative supply.
The GND pins are connected to the system ground plane.
Both VCC and VEE pins should be bypassed to ground via
a 0.01 µF capacitor. Under open input conditions, the D*
input will be biased at VEE/2, and the D input will be pulled
to VEE. This condition will force the Q output to low,
ensuring stability.
PRELIMINARY
Features
•
•
•
•
•
•
•
•
•
•
Extended Supply Voltage Range (VEE = –5.5V to
–3.0V and VCC = 3.0V to 5.5V)
High Bandwidth Output Transition
500 ps Propagation Delay
VBB Output
Internal Input Pulldown Resistors
New Differential Input Common Mode Range
Fully Compatible with MC100EL90 and
MC100LVEL90
ESD Protection of >4000V
Industrial Temperature Range: –40
o
C to +85
o
C
Available in 20-lead SOIC Package
PIN Names
Pin
.unction
Differential ECL/LVECL Inputs
Differential PECL/LVPECL Outputs
ECL/LVECL Reference Voltage Output
Functional Block Diagram
Dn, Dn*
Qn, Qn*
VCC
D0
D0*
VBB
D1
D1*
VBB
D2
D2*
VEE
1
2
3
4
5
6
7
8
9
10
ECL
PECL
20
19
18
17
16
15
14
13
12
11
VCC
Q0
Q0*
V
BB
.unction
ECL
PECL
GND
VEE
-3.3V
-3.3V
-5.0V
-5.0V
VCC
+5.0V
+3.3V
+5.0V
+3.3V
LVECL-to-PECL
Q1
Q1*
GND
Q2
Q2*
LVECL-to-LVPECL
ECL-to-PECL
ECL-to-LVEPCL
ECL
PECL
Function Table
VCC
Revision 1/April 6, 2001
1
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SK10/100EL90W
HIGH-PERFORMANCE PRODUCTS
Package Information
20 Pin SOIC Package
PRELIMINARY
PIN Descriptions
20
–A
11
–B
P
10 X
0.010 (0.25) M B M
R
x 45
˚
D
20 X
0.010 (0.25) M T A S B S
C
–T
G
18 X
K
SEATING
PLANE
Millimeters
DIM
A
B
C
D
.
G
J
K
M
P
R
MIN
12.65
7.40
2.35
0.35
0.50
MAX
12.95
7.60
2.65
0.49
0.90
Inches
MIN
0.499
0.292
0.093
0.014
0.020
MAX
0.510
0.299
0.104
0.019
0.035
1.27 BSC
0.23
0.10
0
o
10.05
0.25
0.32
0.25
7
o
10.55
0.75
0.050 BSC
0.010
0.004
0
o
0.395
0.010
0.012
0.009
7
o
0.415
0.029
NOTES:
1. Dimensions and tolerances per ANSI Y14.5M,
1982.
2. Controlling dimension: millimeter.
3. Dimensions A and B do not include mold protrusion.
4. Maximum mold protrusion 0.150 (0.006) per side.
5. Dimension D does not include Dambar protrusion.
Allowable Dambar protrusion shall be 0.13 (0.005)
total in excess of d dimension at maximum material
condition.
2
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Revision 1/April 6, 2001
J
F
M
SK10/100EL90W
HIGH-PERFORMANCE PRODUCTS
DC Characteristics
SK10/100EL90W ECL/LVECL Input DC Electrical Characteristics
(Notes 1, 2)
(V
EE
= –5.5V to –3.0V; V
CC
= +3.0V to +5.5V ; V
OUT
loaded 50Ω to V
CC
– 2.0V)
TA = –40
o
C
TA = 0
o
C
TA = +25
o
C
TA = +85
o
C
PRELIMINARY
S y mb o l
V
IH
Ch a r a c t e r i s t i c
Input HIGH Voltage
10 EL
100 EL
Input LOW Voltage
10 EL
100 EL
Input Reference Voltage
10 EL
100 EL
I nput Cur r ent ( Di f f )
Mi n i mu m I n p u t S w i n g
4
Power Supply Cur rent
Mi n
- 1230
- 1165
- 1950
- 1810
- 1. 43
- 1. 38
- 150
150
2
Ma x
- 880
- 880
Mi n
- 1170
- 1165
Ma x
- 840
- 880
Mi n
- 1130
- 1165
Ma x
- 810
- 880
Mi n
- 1060
- 1165
Ma x
- 720
- 880
Un i t
mV
mV
mV
mV
V
V
µA
mV
mA
V
IL
- 1500 - 1950 - 1480 - 1950 - 1480 - 1950 - 1445
- 1475 - 1810 - 1475 - 1810 - 1475 - 1810 - 1475
- 1. 30
- 1. 26
150
1000
6
- 1. 38
- 1. 38
- 150
150
2
- 1. 27
- 1. 26
150
1000
6
- 1. 35
- 1. 38
- 150
150
2
- 1. 25
- 1. 26
150
1000
6
- 1. 31
- 1. 38
- 150
150
2
- 1. 18
- 1. 26
150
1000
6
V
BB
I
IN
V
PP
I
EE
SK10/100EL90W PECL/LVPECL Output DC Electrical Characteristics
(Notes 1, 2)
(V
EE
= –5.5V to –3.0V; V
CC
= +3.0V to +5.5V; V
OUT
loaded 50Ω to V
CC
– 2.0V)
TA = –40
o
C
S y mb o l
V
OH
V
OH
V
OL
V
OL
I
GND
Ch a r a c t e r i s t i c
Output HI GH Vol tage
10 EL
Output HI GH Vol tage
100 EL
Output LOW Vol tage
10 EL
Output LOW Vol tage
100 EL
Power Suppl y Cur rent
10 EL
100 EL
Mi n
3. 92
2. 275
3. 915
2. 275
3. 05
1. 49
3. 17
1. 49
17
17
Ma x
4. 11
2. 42
4. 12
2. 42
3. 35
1. 88
3. 445
1. 88
32
35
TA = 0
o
C
Mi n
3. 98
2. 275
3. 975
2. 275
3. 05
1. 49
3. 19
1. 49
17
17
Ma x
4. 18
2. 42
4. 12
2. 42
3. 37
1. 88
3. 38
1. 88
32
35
TA = +25
o
C
Mi n
4. 02
2. 273
3. 975
2. 275
3. 05
1. 49
3. 19
1. 49
17
17
Ma x
4. 19
2. 42
4. 12
2. 42
3. 37
1. 68
3. 38
1. 88
32
35
TA = +85
o
C
Mi n
4. 08
2. 275
3. 975
2. 275
3. 05
1. 49
3. 19
1. 49
17
17
Ma x
4. 28
2. 42
4. 12
2. 42
3. 4
1. 68
3. 35
1. 88
32
35
Un i t
V
V
V
V
V
V
V
V
mA
mA
Co n d i t i o n
V
CC
= 5V
V
CC
= 3. 3V
V
CC
= 5V
V
CC
= 3. 3V
V
CC
= 5V
V
CC
= 3. 3V
V
CC
= 5V
V
CC
= 3. 3V
Revision 1/April 6 2001
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SK10/100EL90W
HIGH-PERFORMANCE PRODUCTS
AC Characteristics
SK10/100EL90W AC Electrical Characteristics
(V
EE
= –5.5V to –3.0V; V
CC
= +3.0V to +5.5V ; V
OUT
loaded 50Ω to V
CC
– 2.0V)
TA = - 40
o
C
S y mb o l
t
s ke w
t
PHL
t
PLH
t
PLH
t
PH
t
r
, t
f
V
C MR
V
PP
Ch a r a c t e r i s t i c
O u t p u t t o O u t p u t S ke w
Propagati on Del ay
( Di f f )
3
Propagati on Del ay
( SE)
3
Output Ri se/.al l Ti mes
( 20% t o 80%)
C o mmo n Mo d e R a n g e
5
Mi n i mu m I n p u t S w i n g
4
420
435
275
VEE +
1. 2
150
Mi n
Ma x
100
530
545
470
GND
1000
435
450
275
VEE +
1. 2
150
TA = 0
o
C
Mi n
Ma x
100
550
565
470
GND
1000
440
460
275
VEE +
1. 2
150
TA = +25
o
C
Mi n
Ma x
100
560
580
470
GND
1000
460
470
275
VEE +
1. 2
150
TA = +85
o
C
Mi n
Ma x
100
585
605
470
GND
1000
Un i t
ps
ps
ps
ps
V
mV
PRELIMINARY
Notes:
1. 10EL circuits are designed to meet the DC specifications shown in the table after thermal equilibrium has
been established. The circuit is in a test socket or mounted on a printed circuit board and transverse
airflow greater than 500 lfpm is maintained. Outputs are terminated through a 50Ω resistor to
VCC–2.0V.
2. 100K circuits are designed to meet the DC specification shown in the table where transverse
airflow greater than 500 lfpm is maintained.
3. Duty cycle skew is the difference between T
PLH
and T
PHL
propagation delay through a device.
4. Minimum input swing for which parameters guaranteed.
5. 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
(min)
and 1V. The lower end of the CMR range varies 1:1 with VEE and is equal to VEE + 1.2V.
6. For standard ECL DC specifications, refer to the ECL Logic Family Standard DC Specifications Data
Sheet.
7. For part ordering description, see HPP Part Ordering Information Data Sheet.
Revision 1/April 6, 2001
4
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SK10/100EL90W
HIGH-PERFORMANCE PRODUCTS
Ordering Information
PRELIMINARY
Ordering Code
SK10EL90WD
SK10EL90WDT
SK100EL90WD
SK100EL90WDT
SK10EL90WU
SK100EL90WU
Package ID
20-SOIC
20-SOIC
20-SOIC
20-SOIC
Die
Die
Temperature Range
Industrial
Industrial
Industrial
Industrial
Contact Information
Division Headquarters
10021 Willow Creek Road
San Diego, CA 92131
Phone: (858) 695-1808
FAX: (858) 695-2633
Revision 1/April 6 2001
Semtech Corporation
High-Performance Products Division
Marketing Group
1111 Comstock Street
Santa Clara, CA 95054
Phone: (408) 566-8776
FAX: (408) 727-8994
www.semtech.com
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