100ELT22 [FAIRCHILD]
5V Dual TTL to Differential PECL Translator; 5V双路TTL至差分PECL转换器
| 型号： | 100ELT22 |
| 厂家： | 
FAIRCHILD SEMICONDUCTOR |
| 描述： | 5V Dual TTL to Differential PECL Translator |
| 文件： | 总5页 (文件大小：122K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
January 2003
Revised January 2003
100ELT22
5V Dual TTL to Differential PECL Translator
General Description
Features
■ Typical propagation delay of 300 ps
■ <100 ps between outputs
■ Max ICC of 30 mA
The 100ELT22 is a TTL to differential PECL translator
operating from a single +5V supply.
Both outputs of a differential pair should be terminated in
50Ω to VCC - 2.0V even if only one output is being used. If
■ Fairchild MSOP-8 package is a drop-in replacement to
ON TSSOP-8
an output pair is unused both outputs can be left open
(un-terminated).
■ Flow through pinout
The 100 series is temperature compensated.
■ Meets or exceeds JEDEC specification EIA/JESD78 IC
latch-up test
■ Moisture Sensitivity Level 1
■ ESD Performance:
Human Body Model > 2000V
Machine Model > 200V
Ordering Code:
Product
Order Number Package
Code
Package Description
Number Top Mark
100ELT22M
M08A
KLT22 8-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150" Narrow
KT22 8-Lead Molded Small Outline Package (MSOP), JEDEC MO-187, 3.0mm Wide
100ELT22M8
(Preliminary)
MA08D
Devices also available in Tape and Reel. Specify by appending suffix letter “X” to the ordering code.
Connection Diagram
Logic Diagram
Top View
Pin Descriptions
Pin Name
Description
Qn, Qn
D0, D1
VCC
PECL Differential Outputs
TTL Inputs
Positive Supply
Ground
GND
© 2003 Fairchild Semiconductor Corporation
DS500773
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Absolute Maximum Ratings(Note 1)
Recommended Operating
Conditions
Supply Voltage (VCC
)
0.0V to +7.0V
0.0V to + 7.0V
Input Voltage (VI) VI ≤ VCC
Power Supply Operating
TTL Input Voltage
V
CC = 4.2V to 5.5V
0.0V to VCC
DC Output Current (IOUT
)
Continuous
50 mA
100 mA
Free Air Operating Temperature (TA)
−40°C to +85°C
Surge
Storage Temperature (TSTG
)
−65°C to + 150°C
Note 1: The “Absolute Maximum Ratings” are those values beyond which
the safety of the device cannot be guaranteed. The device should not be
operated at these limits. The parametric values defined in the Electrical
Characteristics tables are not guaranteed at the absolute maximum rating.
The “Recommended Operating Conditions” table will define the conditions
for actual device operation.
PECL DC Electrical Characteristics VCC = 5.0V; GND = 0.0V (Note 2)
−40°C
25°C
85°C
Symbol
Parameter
Units
Min
Typ
Max
30
Min
Typ
Max
30
Min
Typ
Max
30
ICC
Power Supply Current
mA
mV
mV
VOH
VOL
Output HIGH Voltage (Note 3)
Output LOW Voltage (Note 3)
3915
3170
3995
3305
4120
3445
3975
3190
4045
3295
4120
3380
3975
3190
4050
3295
4120
3380
Note 2: Output parameters vary 1 to 1 with VCC. VCC can vary +0.5V/−0.8V.
Note 3: Outputs are terminated through a 50Ω Resistor to VCC − 2.0V.
Note: Devices are designed to meet the DC specifications after thermal equilibrium has been established. Circuit is tested with air flow greater than
500LFPM maintained.
TTL DC Electrical Characteristics VCC = 5.0V; GND = 0.0V (Note 4); TA = −40°C to +85°C
Symbol
IIH
Parameter
Min
Typ
Max
20
Units
Condition
IN = 2.7V
Input HIGH Current
V
V
V
µA
100
−200
−1.2
IN = VCC
IN = 0.5V
IIL
Input LOW Current
Clamp Diode Voltage
Input HIGH Voltage
Input LOW Voltage
µA
V
VIK
VIH
VIL
IIN = −18 mA
2.0
V
0.8
V
Note 4: VCC can vary +0.5V/−0.8V.
AC Electrical Characteristics VCC = 5.0V; GND = 0.0V (Note 5)
−40°C
Typ
25°C
Typ
85°C
Typ
Figure
Symbol
Parameter
Units
Min
Max
Min
Max
Min
Max
Number
fMAX
Maximum Input Frequency
Cycle-to-Cycle Jitter
TBD
TBD
TBD
TBD
TBD
TBD
MHz
ps
tJITTER
tPLH, tPHL
tr, tf
Propagation Delay to Output (Note 6) 100
600
500
100
200
600
500
100
200
600
500
ps
Figure 1
Figure 2
Output Rise Time/Fall Times
200
ns
(20% to 80%)
tskpp
tskew
Part to Part Skew
500
100
500
100
500
100
ps
ps
Within Device Skew (Note 7)
Note 5: VCC can vary +0.5V/−0.8V.
Note 6: Specifications for standard TTL input signal (see Figure 1).
Note 7: Within-device skew is defined as identical transitions on similar paths through a device.
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2
Switching Waveforms
Note: VM varies 1:1 with VEE
FIGURE 1. TTL to Differential PECL Propagation Delay
FIGURE 2. Differential Output Edge Rates
3
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Physical Dimensions inches (millimeters) unless otherwise noted
8-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150" Narrow
Package Number M08A
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4
Physical Dimensions inches (millimeters) unless otherwise noted (Continued)
8-Lead Molded Small Outline Package (MSOP), JEDEC MO-187, 3.0mm Wide
Package Number MA08D
Fairchild does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and
Fairchild reserves the right at any time without notice to change said circuitry and specifications.
LIFE SUPPORT POLICY
FAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT
DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF FAIRCHILD
SEMICONDUCTOR CORPORATION. As used herein:
1. Life support devices or systems are devices or systems
which, (a) are intended for surgical implant into the
body, or (b) support or sustain life, and (c) whose failure
to perform when properly used in accordance with
instructions for use provided in the labeling, can be rea-
sonably expected to result in a significant injury to the
user.
2. A critical component in any component of a life support
device or system whose failure to perform can be rea-
sonably expected to cause the failure of the life support
device or system, or to affect its safety or effectiveness.
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5
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