2.5ns typical propagation delay power Differential PECL inputs 24mA ou
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DIFFERENTIAL PECL-to-TTL TRANSLATOR
2.5ns typical propagation delay power Differential PECL inputs 24mA outputs Flow-through pinouts Available 8-pin SOIC package
ClockWorksSY10ELT21 SY100ELT21
DESCRIPTION
SY10/100ELT21 single differential PECL-toTTL translators. Because PECL (Positive ECL) levels used, only ground required. small outline 8-lead SOIC package skew single gate design make ELT21 ideal applications that require translation clock data signal where minimal space, power, cost critical. output allow differential single-ended, ACcoupled interface device. used, output should bypassed with 0.01µF capacitor. ELT21 available both standards: 10ELT compatible with positive logic levels, while 100ELT compatible with positive 100K logic levels.
CONFIGURATION/BLOCK DIAGRAM
NAMES
Output Differential PECL Inputs +5.0V Supply Reference Output Ground Function
PECL
SOIC VIEW
Rev.:
Amendment:
Issue Date: April 2000
Micrel
ClockWorksSY10ELT21 SY100ELT21
ABSOLUTE MAXIMUM RATINGS(1)
Symbol Tstore Parameter Power Supply Voltage PECL Input Voltage Voltage Applied Output HIGH State Current Applied Output State Storage Temperature Operating Temperature Value -0.5 +7.0 VCC+0.5 -0.5 +5.5 Twice Rated +150 Unit
TRUTH TABLE
Open Open
NOTE: Permanent device damage occur ABSOLUTE MAXIMUM RATINGS exceeded. This stress rating only functional operation implied conditions other than those detailed operational sections this data sheet. Exposure ABSOLUTE MAXIMUM RATlNG conditions extended periods affect device reliability.
ELECTRICAL CHARACTERISTICS
4.75V 5.25V
-40°C Symbol Parameter Output Short Circuit Current Power Supply Current Output HIGH Voltage Output Voltage Min. Max. -200 Min. Max. -200 +25°C Min. Typ. Max. -200 +85°C Min. Max. -200 Unit Condition VOUT -3.0mA -15mA 24mA
PECL ELECTRICAL CHARACTERISTICS
4.75V 5.25V
-40°C Symbol Parameter Input HIGH Current Input Current Input HIGH Voltage(2) 10ELT 100ELT Min. 3770 3835 3050 3190 3570 3620 Max. 4110 4120 3500 3525 3700 3740 Min. 3830 3835 3050 3190 3620 3620 Max. 4160 4120 3520 3525 3730 3740 3870 3835 3050 3190 3650 3620 +25°C Min. Typ. Max. 4190 4120 3520 3525 3750 3740 +85°C Min. 3940 3835 3050 3190 3690 3620 Max. 4280 4120 3555 3525 3810 3740 Unit Condition
Input Voltage(2) 10ELT 100ELT Reference Output(2) 10ELT 100ELT
NOTES: These values 5.0V. Level Specifications will vary VCC.
Micrel
ClockWorksSY10ELT21 SY100ELT21
ELECTRICAL CHARACTERISTICS
4.75V 5.25V
-40°C Symbol tPLH tPHL tskpp fMAX VCMR Parameter Propagation Delay Output Part-to-Part Skew(1, Maximum Input Frequency
Min. Max.
+25°C Min. Typ. Max.
+85°C Min. Max. Unit 50pF Condition 50pF 50pF 50pF
Min. Input(5)
Max.
Common Mode Range Minimum Peak-to-Peak Output Rise/Fall Time (1.0V 2.0V)
NOTES: Part-to-Part Skew considering HIGH-to-HIGH transitions common levels. These parameters guaranteed, tested. Frequency which output levels will meet 0.8V 2.0V minimum swing. fMAX value specified minimum guaranteed maximum frequency. Actual operational maximum frequency greater. 200mV input guarantees full logic output.
PRODUCT ORDERING CODE
Ordering Code SY10ELT21ZC SY10ELT21ZCTR SY100ELT21ZC SY100ELT21ZCTR Package Type Z8-1 Z8-1 Z8-1 Z8-1 Operating Range Commercial Commercial Commercial Commercial Range +4.75 +5.25 +4.75 +5.25 +4.75 +5.25 +4.75 +5.25
Micrel
ClockWorksSY10ELT21 SY100ELT21
LEAD SOIC .150" WIDE (Z8-1)
Rev.
MICREL-SYNERGY
3250 SCOTT BOULEVARD SANTA CLARA 95054
(408) 980-9191
(408) 914-7878
http://www.micrel.com
This information believed accurate reliable, however responsibility assumed Micrel infringement patents other rights third parties resulting from use. license granted implication otherwise under patent patent right Micrel Inc. 2000 Micrel Incorporated
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