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MC100EL91 Datasheet

Triple PECL to ECL Translator

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MOTOROLA
SEMICONDUCTOR TECHNICAL DATA
Triple PECL to ECL Translator
The MC100LVEL/EL91 is a triple PECL to ECL translator. The
MC100LVEL91 receives low voltage PECL signals and translates them to
differential ECL output signals. The MC100EL91 receives standard
voltage PECL signals and translates them to differential ECL output
signals.
MC100LVEL91 Supports Low Voltage Operation
MC100LVEL91 Has 620ps Typical Propagation Delays
MC100EL91 Supports Standard Voltage Operation
MC100EL91 Has 670ps Typical Propagation Delays
Fully Differential Design
20–lead SOIC Packaging
A VBB output is provided for interfacing with single ended PECL signals
at the input. If a single ended input is to be used the VBB output should be
connected to the D input. The active signal would then drive the D input.
When used the VBB output should be bypassed to ground via a 0.01µF
capacitor. The VBB output is designed to act as the switching reference
for the EL/LVEL91 under single ended input switching conditions, as a
result this pin can only source/sink up to 0.5mA of current.
To accomplish the level translation the EL/LVEL91 requires three
power rails. The VCC supply should be connected to the positive supply,
and the VEE pin should be connected to the negative power supply. The
GND pins are connected to the system ground plain. Both VEE and VCC
should be bypassed to ground via 0.01µF capacitors.
Under open input conditions, the D input will be biased at VCC/2 and
the D input will be pulled to GND. This condition will force the Q output to
a low, ensuring stability.
MC100LVEL91
MC100EL91
DW SUFFIX
20–LEAD PLASTIC SOIC WIDE PACKAGE
CASE 751D–04
PIN NAMES
Pins
Function
Dn
Qn
PECL_VBB
PECL/LVPECL Inputs
ECL/LVECL Outputs
PECL Reference Voltage Output
VCC Q0
20 19
Q0 GND Q1
18 17 16
Q1 GND Q2
15 14 13
Q2 VCC
12 11
ECL ECL ECL
PECL
PECL
PECL
1 2 3 4 5 6 7 8 9 10
VCC D0 D0
D1 D1
D2 D2 VEE
Figure 1. 20–Lead Pinout (Top View) and Logic Diagram
8/97
© Motorola, Inc. 1997
4–1
REV 1


Motorola Electronic Components Datasheet

MC100EL91 Datasheet

Triple PECL to ECL Translator

No Preview Available !

MC100LVEL91 MC100EL91
LVPECL INPUT DC CHARACTERISTICS
–40°C
0°C
25°C
Symbol
Characteristic
Min Max Min Max Min Typ
VCC
IIH
IIL
VIH
Power Supply Voltage
Input HIGH Current
Input LOW Current
Input HIGH Voltage
(Note 1.)
3.0 3.6 3.0 3.6 3.0
150 150
0.5 0.5 0.5
2.135 2.420 2.135 2.420 2.135
3.3
VIL
Input LOW Voltage
1.49 1.825 1.49 1.825 1.49
(Note 1.)
VBB
Reference Output
(Note 1.)
1.92 2.04 1.92 2.04 1.92
IGND
Power Supply Curremt
1. DC levels vary 1:1 with VCC.
10
10 6.0
85°C
Max Min Max
3.6 3.0 3.6
150 150
0.5
2.420 2.135 2.420
1.825 1.49 1.825
2.04 1.92 2.04
10 10
Unit
V
µA
µA
V
V
V
mA
Condition
VCC = 3.3V
VCC = 3.3V
VCC = 3.3V
PECL INPUT DC CHARACTERISTICS
–40°C
0°C
25°C
Symbol
Characteristic
Min Max Min Max Min Typ
VCC
IIH
IIL
VIH
Power Supply Voltage
Input HIGH Current
Input LOW Current
Input HIGH Voltage
(Note 2.)
4.75 5.25 4.75 5.25 4.75
150 150
0.5 0.5 0.5
3.835 4.120 3.835 4.12 3.835
5.0
VIL
Input LOW Voltage
3.19 3.525 3.19 3.525 3.19
(Note 2.)
VBB
Reference Output
(Note 2.)
3.62 3.74 3.62 3.74 3.62
IGND
Power Supply Curremt
11
11
6.0
2. DC levels vary 1:1 with VCC.
85°C
Max Min Max
5.25 4.75 5.25
150 150
0.5
4.12 3.835 4.120
3.525 3.19 3.525
3.74 3.62 3.75
11 11
Unit
V
µA
µA
V
V
V
mA
Condition
VCC = 5.0V
VCC = 5.0V
VCC = 5.0V
ECL/LVECL OUTPUT DC CHARACTERISTICS
–40°C
0°C
25°C
85°C
Symbol
Characteristic
Min Max Min Max Min Typ Max Min Max
VEE
Power Supply EL91 –4.2 –5.5 –4.2 –5.5 –4.2 –4.5 –5.5 –4.2 –5.5
Voltage
LVEL91 –3.0 –3.8 –3.0 –3.8 –3.0 –3.3 –3.8 –3.0 –3.8
VOH
VOL
IEE
Output HIGH Voltage –1085 –880 –1025 –880 –1025 –955 –880 –1025 –880
Output LOW Volrage
–1830 –1555 –1810 –1620 –1810 –1705 –1620 –1810 –1620
Power Supply EL91
28
28
22 28
30
Current
LVEL91
27
27
21 27
29
Unit
V
mV
mV
mA
Condition
MOTOROLA
4–2 ECLinPS and ECLinPS Lite
DL140 — Rev 3


Part Number MC100EL91
Description Triple PECL to ECL Translator
Maker Motorola
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MC100EL91 Datasheet PDF






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