SK1300
PECL / LVPECL to LVDS Translator
HIGH PERFORMANCE PRODUCTS
Description
The SK1300 is a high speed PECL / LVPECL to LVDS
translator. This device is designed to support frequency
rates in excess of 800 MHz utilizing low voltage
differential signaling (LVDS) technology. SK1300
operates over an extended supply range of 3.0 to 5.5V
which allow either PECL or LVPECL signal at its inputs
based on the supply voltage range. It also provides a
new alternative to high power pseudo-ECL devices for
high speed point-to-point interface using LVDS type
signals.
The SK1300 provides a VBB outputs for either single-
ended use or as a DC bias for AC coupling to the device.
The VBB output should only be used as a bias for the
SK1300 as its current sink/source capability is limited.
Whenever used, the VBB output should be bypassed
to VCC via a 0.01
mF
capacitor.
Under open input condition, the pulldown on D and
pullup and pulldown on D* will force the Q output low
and Q* output high.
Features
Extended Supply Voltage Range: (VCC = 3.0V to
5.5V; VEE = 0V)
800 MHz Min. Toggle Frequency
Typical 350 mV Differential LVDS Output
VBB Output for Single-ended Applications
Internal Input Resistors; Pulldown on D,
Pulldown and Pullup on D*
ESD Protection > 4000V
Specified Over Industrial Temperature Range:
40
o
C to 85
o
C
Available in both 8 pin SOIC and MSOP Packages
Flammability Rate: UL-94 code V-0
Moisture Sensitivity: Level 1
Pin Descriptions
Pin Name
D, D *
Q, Q*
VBB
Function
D i f f e r e n t i a l P E C L / LV P E C L i n p u t s
D i f f e r e n t i a l LV D S O u t p u t s
R e f e r e n c e O u t p u t Vo l t a g e
Functional Block Diagram
NC
1
8
VCC
36.5K
D
2
75K
7
Q
D*
3
6
Q*
75K
VBB
4
5
VEE
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SK1300
HIGH PERFORMANCE PRODUCTS
Package Information
8 Pin SOIC Package
TOP VIEW
END VIEW
A
D
C
8
E
1
5
H
0.25 M
B M
4
B
e
h x 45
o
q
A
C
A1
B
0.25 M
C B
Seating
Plane
0.10
S
A
S
L
MILLIMETERS
DIM
A
A1
B
C
D
E
e
H
h
L
q
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
1.27 BSC
5.80
0.25
0.40
0
o
6.20
0.50
1.27
8
o
NOTES:
1. Dimensions are in millimeters.
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.
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SK1300
HIGH PERFORMANCE PRODUCTS
Package Information
(continued)
8 Pin MSOP Package
TOP VIEW
8
5
BOTTOM VIEW
H
E
1
4
B
END VIEW
A
DETAIL A
e
D
q
L
See Detail A
C
MILLIMETERS
DIM
A
B
C
D
E
e
H
L
θ
MIN
0.94
0.25
0.13
2.90
2.90
0.65
4.75
0.4
0
o
MAX
1.1
0.40
0.23
3.10
3.10
BSC
5.1
0.7
6
o
NOTES:
1. Dimensions are in mm
2. Controlling dimension: mm
3. Dimension does not include
mold flash or protrusions,
either of which shall not
exceed 0.20
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SK1300
HIGH PERFORMANCE PRODUCTS
Absolute Maximum Ratings
Sy mbol
V
EE
V
CC
V
I
V
I
I
OUT
T
A
T
st g
q
JA
f o r S O I C
q
JC
f o r S O I C
q
JA
f o r M S O P
q
JC
f o r M S O P
T
sol
Pa r a m e t e r
P o w e r S u p p l y ( V
CC
= 0 V )
P o w e r S u p p l y ( V
EE
= 0 V )
I n p u t Vo l t a g e ( V
CC
= 0 V, V
I
n o t m o r e n e g a t i v e t h a n V
EE
)
I n p u t Vo l t a g e ( V
EE
= 0 V, V
I
n o t m o r e p o s i t i v e t h a n V
CC
)
Output Cur rent
Continuous
Surge
O p e r a t i n g Te m p e r a t u r e R a n g e
S t o r a g e Te m p e r a t u r e
Ther mal Resi st anc e ( J unc t i on- t o- Ambi ent )
Still Air
Ther mal Resi st anc e ( J unc t i on- t o- Case)
Ther mal Resi st anc e ( J unc t i on- t o- Ambi ent )
Still Air
5 0 0 l f p m ( > 2 l ay e r s )
Ther mal Resi st anc e ( J unc t i on- t o- Case)
S o l d e r Te m p e r a t u r e ( < 2 t o 3 s e c o n d s : 2 4 5
o
C d e s i r e d )
Va l u e
-6.0 to 0
6.0 to 0
-6.0 to 0
6.0 to 0
Uni t
V
V
V
V
50
100
-40 to +85
-65 to +150
mA
mA
o
C
o
C
153.7
41.2
o
C / W
o
C / W
206.3
140
39.1
265
o
C / W
o
C / W
o
C / W
o
C
* Maximum Ratings are those values beyond which damage to the device may occur.
DC Characteristics
SK1300 LVDS Outputs DC Electrical Characteristics
(VCC = +3.0V to +5.5V; VEE = 0V)
TA = - 40
o
C
Symbol
V
OH
4
V
OL
4
RO
DV
O U T
Characteristic
Output High Voltage
Output Low Voltage
Output Impedance
Peak-to-Peak Voltage
1
Min
1.25
0.95
15
Typ Max
1.8
1.5
TA = 0
o
C
Min
1.25
0.95
TA = + 25
o
C
Typ
Max
1.8
1.5
70
350
470
TA = + 85
o
C
Min
1.25
0.95
15
250
350
Typ
Max
1.8
1.5
70
470
Unit
V
V
W
mV
Typ Max Min
1.8 1.25
1.5 0.95
70 15
350 470
250
70 15
250
250 350 470
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SK1300
HIGH PERFORMANCE PRODUCTS
DC Characteristics
(Continued)
SK1300 PECL / LVPECL Input DC Electrical Characteristics
(VCC = +3.0V to +5.5V; VEE = 0V)
TA = - 40
o
C
S y mb o l C h a r a c t e r i s t i c
I
IN
V
BB
V
IH
V
IL
I EE
I nput Cur rent
Out put Ref er enc e Vol t age
I nput HI GH Vol t age
I nput LOW Vol t age
Suppl y Cur rent
Mi n
- 150
3. 62
1. 92
3835
2135
3190
1490
Ma x
150
3. 74
2. 04
4120
2420
3525
1825
50
TA = 0
o
C
Mi n
- 150
3. 62
1. 92
3835
2135
3190
1490
Ma x
150
3. 74
2. 04
4120
2420
3525
1825
50
TA = + 25
o
C
Mi n
- 150
3. 62
1. 92
3835
2135
3190
1490
Ma x
150
3. 74
2. 04
4120
2420
3525
1825
50
TA = + 85
o
C
Mi n
- 150
3. 62
1. 92
3835
2135
3190
1490
Ma x
150
3. 74
2. 04
4120
2420
3525
1825
50
Uni t
µA
V
V
mV
mV
mV
mV
mA
VCC = 5. 0V
VCC = 3. 3V
VCC = 5. 0V
VCC = 3. 3V
VCC = 5. 0V
VCC = 3. 3V
Co n d
AC Characteristics
SK1300 AC Electrical Characteristics
(VCC = +3.0V to +5.5V; VEE = 0V)
TA = - 4 0
o
C
Symbol
F
MAX
t
PLH
t
PHL
VPP
V
CMR
t r, t f
Characteristic
M a x To g g l e Fr e q u e n c y
3
P r o p a g a t i o n D e l ay
D to Q
M i n i m u m Pe a k - t o - Pe a k I n p u t
Common Mode Range
2
O u t p u t R i s e / Fa l l
Min
800
450
200
VEE+1.7
120
780
1000
VCC-0.4
320
Max
TA = 0
o
C
Min
800
500
200
VEE+1.7
120
820
1000
VCC-0.4
330
Max
TA = + 2 5
o
C
Min
800
500
200
VEE+1.7
130
850
1000
VCC-0.4
350
Max
TA = + 8 5
o
C
Min
800
500
200
VEE+1.7
150
950
1000
VCC-0.4
450
Max
Unit
MHz
ps
mV
V
ps
Notes:
1.
2.
3.
4.
DV
OUT
is obtained as follows: Voltages of Q and Q* outputs with respect with V
EE
are measured. The absolute
difference between the high and the low is equal to DV
OUT
.
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 + 1.7V.
250 mV minimum output peak-to-peak swing for Max Toggle Frequency.
Output test conditions: 100W termination resistor between Q and Q*.
Revision 1/December 3, 2001
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