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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 singleended 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: 40oC to 85oC 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 BM
4
B
e
h x 45o q
A C A1 B
0.25 M CB
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 0o 6.20 0.50 1.27 8o
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 MIN 0.94 0.25 0.13 2.90 2.90 0.65 4.75 0.4 0o 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 VI VI I OUT TA 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 oC 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
oC oC
153.7 41.2
oC / W oC / W
206.3 140 39.1 265
oC / W oC / W oC / W oC
* 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 = - 40oC Symbol VOH 4 VOL 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 = 0oC Min 1.25 0.95
TA = + 25oC Typ Max 1.8 1.5 70 350 470
TA = + 85oC 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
7 0 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 = - 40oC S y mb o l C h a r a c t e r i s t i c I IN VBB 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 = 0oC Mi n - 150 3. 62 1. 92 3835 2135 3190 1490 Ma x 150 3. 74 2. 04 4120 2420 3525 1825 50 TA = + 25oC Mi n - 150 3. 62 1. 92 3835 2135 3190 1490 Ma x 150 3. 74 2. 04 4120 2420 3525 1825 50 TA = + 85oC 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 A 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 oC Symbol FMAX tPLH tPHL VPP VCMR 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 oC Min 800 500 200 VEE+1.7 120 820 1000 VCC-0.4 330 Max TA = + 2 5 oC Min 800 500 200 VEE+1.7 130 850 1000 VCC-0.4 350 Max TA = + 8 5 oC 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.
DVOUT is obtained as follows: Voltages of Q and Q* outputs with respect with VEE are measured. The absolute difference between the high and the low is equal to DVOUT. 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*.
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SK1300
HIGH PERFORMANCE PRODUCTS Ordering Information
Or d e r i n g Co d e SK1300D SK1300DT S K 1 3 0 0 MS S K 1 3 0 0 MS T Package ID 8- SOI C 8- SOI C 8 - MS O P 8 - MS O P Temperature Range I ndust r i al I ndust r i al I ndust r i al I ndust r i al
The letter "T" stands for tape and reel. For tape and reel information refer to the HPP Part Ordering Information Data Sheet.
Marking Information
8 PIN SOIC PACKAGE
Function Code / Part Number
8 PIN MSOP PACKAGE
Function Code / Part Number
S
K
1
3
0
0
1
3
0
0
Assembly Lot Number
Assembly Lot Number Y Y W W
Assembly Date Code
YY: Last two digits of the Year WW: Working Week
Application Notes
AN1003 AN1004 Termination Techniques for ECL / LVECL / PECL / LVPECL Devices Interfacing Between LVDS and ECL / LVECL / PECL / LVPECL
Contact Information
Division Headquarters 10021 Willow Creek Road San Diego, CA 92131 Phone: (858) 695-1808 FAX: (858) 695-2633
Semtech Corporation High-Performance Products Division
1111 Santa Phone: FAX:
Marketing Group Comstock Street Clara, CA 95054 (408) 566-8776 (408) 727-8994
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