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Part Number SY100ELT22LZC

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DESCRIPTION
s
3.3V power supply
s
300ps typical propagation delay
s
<100ps output-to-output skew
s
Differential PECL outputs
s
PNP TTL inputs for minimal loading
s
Flow-through pinouts
s
Available in 8-pin SOIC package
The SY10/100ELT22L are dual TTL-to-differential
PECL translators with +3.3V power supply. Because
PECL (Positive ECL) levels are used, only +3.3V and
ground are required. The small outline 8-lead SOIC
package and the low skew, dual gate design of the
ELT22L makes it ideal for applications which require the
tranlation of a clock and a data signal.
The ELT22L is available in both ECL standards: the
10ELT is compatible with positive ECL 10H logic levels,
while the 100ELT is compatible with positive ECL 100K
logic levels.
FEATURES
3.3V DUAL
TTL-to-DIFFERENTIAL
PECL TRANSLATOR
PIN NAMES
PIN CONFIGURATION/BLOCK DIAGRAM
Pin
Function
Q
n
Differential PECL Outputs
D
n
TTL Inputs
V
CC
+3.3V Supply
GND
Ground
SOIC
TOP VIEW
SY10ELT22L
SY100ELT22L
Rev.: H
Amendment: /0
Issue Date: March, 1999
1
2
3
4
5
6
7
8
Q
0
Q
1
V
CC
D
0
GND
D
1
Q
0
Q
1
PECL
TTL
1
2
SY10ELT22L
SY100ELT22L
Micrel
T
A
= -40
°
C
T
A
= 0
°
C
T
A
= +25
°
C
T
A
= +85
°
C
Symbol
Parameter
Min.
Max. Min. Max. Min.
Max. Min. Max. Unit
Condition
t
PLH
Propagation Delay to Output D,
100
600
100
600
100
600
100
600
ps
50
to V
CC
­ 2.0V
t
PHL
ENECL/ENTTL
t
r
Output Rise/Fall Time
200
500
200
500
200
500
200
500
ps
50
to V
CC
­ 2.0V
t
f
20% to 80%
t
skpp
Part-to-Part Skew
(2)
--
500
--
500
--
500
--
500
ps
50
to V
CC
­ 2.0V
t
skew
Within-Device Skew
(2,3)
--
100
--
100
--
100
--
100
ps
50
to V
CC
­ 2.0V
T
A
= -40
°
C
T
A
= 0
°
C
T
A
= +25
°
C
T
A
= +85
°
C
Symbol
Parameter
Min. Max.
Min. Max. Min. Max.
Min. Max. Unit
Condition
I
CC
Power Supply Current
--
25
--
25
--
25
--
25
mA
--
TRUTH TABLE
D
Q
Q
H
H
L
L
L
H
Open
H
L
DC ELECTRICAL CHARACTERISTICS
(1)
V
CC
= +3.0V to +3.8V
AC ELECTRICAL CHARACTERISTICS
(1)
V
CC
= +3.0V to +3.8V
NOTE:
1. Parametric values specified at:
3 volt Power Supply Range
10/100ELT22L Series: +3.0V to +3.8V.
NOTES:
1. Parametric values specified at:
3 volt Power Supply Range
10/100ELT22L Series: +3.0V to +3.8V.
2. Guaranteed, but not tested.
3. Same transition @common V
CC
levels.
Symbol
Paramter
Value
Unit
V
CC
Power Supply Voltage
­0.5 to +7.0
V
V
I
TTL Input Voltage
­0.5 to V
CC
V
I
I
TTL Input Current
­30 to +5.0
mA
I
OUT
PECL Output Current
mA
-- Continuous
50
-- Surge
100
T
store
Storage Temperature
­65 to +150
°
C
T
amb
Operating Temperature
­40 to +85
°
C
NOTE:
1. Permanent device damage may occur if ABSOLUTE MAXIMUM RATINGS
are exceeded. This is a stress rating only and functional operation is not
implied at conditions other than those detailed in the operational sections
of this data sheet. Exposure to ABSOLUTE MAXIMUM RATlNG conditions
for extended periods may affect device reliability.
ABSOLUTE MAXIMUM RATINGS
(1)
3
SY10ELT22L
SY100ELT22L
Micrel
TTL DC ELECTRICAL CHARACTERISTICS
(1)
T
A
= -40
°
C
T
A
= 0
°
C
T
A
= +25
°
C
T
A
= +85
°
C
Symbol
Parameter
Min.
Max.
Min.
Max.
Min.
Max.
Min.
Max.
Unit
Condition
V
IH
Input HIGH Voltage
2.0
--
2.0
--
2.0
--
2.0
--
V
--
V
IL
Input LOW Voltage
--
0.8
--
0.8
--
0.8
--
0.8
V
--
I
IH
Input HIGH Current
--
20
--
20
--
20
--
20
µ
A
V
IN
= 2.7V
--
100
--
100
--
100
--
100
V
IN
= V
CC
I
IL
Input LOW Current
--
­0.2
--
­0.2
--
­0.2
--
­0.2
mA
V
IN
= 0.5V
V
IK
Input Clamp Voltage
--
­1.2
--
­1.2
--
­1.2
--
­1.2
V
I
IN
= ­18mA
V
CC
= +3.0V to +3.8V
NOTE:
1. Parametric values specified at:
3 volt Power Supply Range
10/100ELT22L Series: +3.0V to +3.8V.
PRODUCT ORDERING CODE
Ordering
Package
Operating
V
CC
Range
Code
Type
Range
(V)
SY10ELT22LZC
Z8-1
Commercial
+3.0 to +3.8
SY10ELT22LZCTR
Z8-1
Commercial
+3.0 to +3.8
SY100ELT22LZC
Z8-1
Commercial
+3.0 to +3.8
SY100ELT22LZCTR
Z8-1
Commercial
+3.0 to +3.8
T
A
= -40
°
C
T
A
= 0
°
C
T
A
= +25
°
C
T
A
= +85
°
C
Symbol
Parameter
Min.
Typ.
Max.
Min.
Typ.
Max.
Min.
Typ.
Max.
Min.
Typ.
Max.
Unit
V
OH
Output HIGH Voltage
(2)
mV
10ELT
2220
--
2410
2280
--
2460
2320
--
2490
2390
--
2580
100ELT
2220
--
2420
2275
--
2420
2275
--
2420
2275
--
2420
V
OL
Output LOW Voltage
(2)
mV
10ELT
1350
--
1650
1350
--
1670
1350
--
1670
1350
--
1705
100ELT
1470
--
1750
1490
--
1680
1490
--
1680
1490
--
1680
V
CC
= V
CC
(Min.) to V
CC
(Max.)
NOTES:
1. Parametric values specified at:
3 volt Power Supply Range
10/100ELT22L Series: +3.0V to +3.8V.
2. These values are for V
CC
= 3.3V. Level Specifications will vary 1:1 with V
CC
.
PECL DC ELECTRICAL CHARACTERISTICS
(1)
4
SY10ELT22L
SY100ELT22L
Micrel
8 LEAD SOIC .150" WIDE (Z8-1)
Rev. 03
MICREL-SYNERGY
3250 SCOTT BOULEVARD
SANTA CLARA
CA 95054
USA
TEL
+ 1 (408) 980-9191
FAX
+ 1 (408) 914-7878
WEB
http://www.micrel.com
This information is believed to be accurate and reliable, however no responsibility is assumed by Micrel for its use nor for any infringement of patents or
other rights of third parties resulting from its use. No license is granted by implication or otherwise under any patent or patent right of Micrel Inc.
© 2000 Micrel Incorporated