SEMTECH SK10ELT21WD

SK10/100ELT21W
Differential PECL to CMOS/TTL or
LVPECL to LVCMOS/LVTTL Translator
HIGH-PERFORMANCE PRODUCTS
Description
Features
•
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 +VCC
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.
•
•
•
•
•
•
•
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).
•
•
•
•
Functional Block Diagram
NC
D0
PIN Names
1
8
TTL
2
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:
–40 oC to 85oC
ESD Protection of >4000V
Small Outline 8 Lead SOIC (150 mils) Package
Flammability Rate: UL-94 code V-0
Moisture Sensitivity: Level 1
7
VCC
Q0
Pin
Function
QO
CMOS/TTL Output
D0, D0*
Differential PECL Inputs
VBB
Referenced Voltage Output
VCC
+VCC Supply
GND
Ground
NC
No Connect
PECL
D0*
VBB
3
6
NC
4
5
GND
Revision 1/October 16, 2001
1
www.semtech.com
SK10/100ELT21W
HIGH-PERFORMANCE PRODUCTS
Package Information
8 Lead SOIC Package
TOP VIEW
END VIEW
D
A
C
8
5
H
E
0.25 M
B M
1
4
h x 45o
B
q
e
A
Seating
Plane
C
L
0.10
A1
B
0.25 M
C B
S
A
S
MILLIMETERS
DIM
MIN
MAX
A
1.35
1.75
A1
0.10
0.25
B
0.33
0.51
C
0.19
0.25
D
4.80
5.00
E
3.80
4.00
e
1.27 BSC
H
5.80
6.20
h
0.25
0.50
L
0.40
1.27
q
0o
8o
Revision 1/October 16, 2001
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.
2
www.semtech.com
SK10/100ELT21W
HIGH-PERFORMANCE PRODUCTS
DC Characteristics
SK10/100ELT21W TTL Output DC Electrical Characteristics
(VCC = 3.0V to 5.5V; TA = -40 oC to +85 oC)
Symbol
Characteristic
VOH
O u t p u t H I G H Vo l t a g e
VOL
O u t p u t L OW Vo l t a g e
ICC
Po w e r S u p p l y C u r r e n t
Min
Ty p
Max
Unit
Cond
V
IOH = -3 mA
0.5
V
IOL = 8 mA
32
mA
VCC - 0.5
16
SK10ELT21W PECL Input DC Electrical Characteristics
(VCC = 3.0V to 5.5V)
TA = -40oC
S y mb o l
Ch a r a c t e r i s t i c
VI H
TA = 0oC
TA = +25oC
TA = +85oC
Mi n
Ma x
Mi n
Ma x
Mi n
Ma x
Mi n
Ma x
Un i t
Co n d
Input HIGH Voltage
3770
2070
4110
2410
3830
2130
4160
2460
3870
2170
4190
2490
3940
2240
4280
2580
mV
mV
VCC = 5. 0V
VCC = 3. 3V
VI L
Input LOW Voltage
3050
1350
3500
1800
3050
1350
3520
1820
3050
1350
3520
1820
3050
1350
3555
1855
mV
mV
VCC = 5. 0V
VCC = 3. 3V
VPP
Minimum Peak-to-Peak Input
200
1000
200
1000
200
1000
200
1000
mV
No t e 1
IIN
I n p u t Cu r r e n t ( Di f f )
- 150
150
- 150
150
- 150
150
- 150
150
µA
V BB
Reference Output Voltage
3570
1870
3700
2000
3620
1920
3730
2030
3650
1950
3750
2050
3690
1990
3810
2110
mV
mV
VCC = 5. 0V
VCC = 3. 3V
SK100ELT21W PECL Input DC Electrical Characteristics
(VCC = 3.0V to 5.5V)
TA = - 40oC
S y mb o l
Ch a r a c t e r i s t i c s
TA = 0oC
TA = + 25oC
TA = + 85oC
Mi n
Ma x
Mi n
Ma x
Mi n
Ma x
Mi n
Ma x
Un i t
Co n d
VI H
Input HIGH Voltage
3835
2135
4120
2420
3835
2135
4120
2420
3835
2135
4120
2420
3835
2135
4120
2420
mV
mV
VCC = 5. 0V
VCC = 3. 3V
VI L
Input LOW Voltage
3190
1490
3525
1825
3190
1490
3525
1825
3190
1490
3525
1825
3190
1490
3525
1825
mV
mV
VCC = 5. 0V
VCC = 3. 3V
VPP
Minimum Peak-to-Peak Input
200
1000
200
1000
200
1000
200
1000
mV
No t e 1
IIN
I n p u t HI GH Cu r r e n t
- 150
150
- 150
150
- 150
150
- 150
150
mA
V BB
Reference Output Voltage
3620
1920
3740
2040
3620
1920
3740
2040
3620
1920
3740
2040
3620
1920
3740
2040
mV
mV
Revision 1/October 16, 2001
3
VCC = 5. 0V
VCC = 3. 3V
www.semtech.com
SK10/100ELT21W
HIGH-PERFORMANCE PRODUCTS
AC Characteristics
SK10/100ELT21W AC Electrical Characteristics
(VCC = 3.0V to 5.5V)
TA = - 40oC
Symbol
Characteristic
Min
Fmax
Max Input Frequency 3
180
tPLH
tPHL
Propagation Delay 3
1.95
tr, tf
Output Rise/Fall Time
1.0V to 2.0V
0.38
VCMR
Common Mode Range 2
GND
+ 1.2
Typ
TA = 0oC
Max
Min
Typ
TA = +25oC
Max
180
0.75
5.4
1.95
1.5
0.38
VCC
- 0.7
GND
+ 1.2
Min
Typ
TA = +85oC
Max
180
0.75
5.4
1.95
1.5
0.38
VCC
- 0.7
GND
+ 1.2
Min
Typ
Max
180
0.75
5.4
1.95
1.5
0.38
VCC
- 0.7
GND
+ 1.2
Unit
MHz
0.75
5.4
ns
1.5
ns
VCC
- 0.7
V
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(min) and 1V. The lower end of the CMR range varies 1:1 with GND and is equal to GND + 1.2V.
3. CL = 20 pF.
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
Package ID
Temperature Range
SK10ELT21WD
8-SOIC
Industrial
SK10ELT21WDT
8-SOIC
Industrial
SK100ELT21WD
8-SOIC
Industrial
SK100ELT21WDT
8-SOIC
Industrial
SK10ELT21WU
Die
SK100ELT21WU
Die
Marking Information
8 PIN SOIC PACKAGE
Function / Voltage &
Device Operation
Function Code / Part Number
H = 10
K = 100
E
L
Y
Y
Assembly
Lot Number
W
W
YY: Last two digits of the Year
WW: Working Week
Contact Information
Division Headquarters
10021 Willow Creek Road
San Diego, CA 92131
Phone: (858) 695-1808
FAX:
(858) 695-2633
Revision 1/October 16, 2001
Semtech Corporation
High-Performance Products Division
5
Marketing Group
1111 Comstock Street
Santa Clara, CA 95054
Phone: (408) 566-8776
FAX: (408) 727-8994
www.semtech.com