Motorola MC100LVEL91, MC100LVEL91DW, MC100EL91, MC100EL91DW, MC100EL91DWR2 Datasheet
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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.
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VCC |
Q0 |
Q0 |
GND |
Q1 |
Q1 |
GND |
Q2 |
Q2 |
VCC |
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12 |
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11 |
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ECL |
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ECL |
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ECL |
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MC100LVEL91
MC100EL91
DW SUFFIX
20±LEAD PLASTIC SOIC WIDE PACKAGE
CASE 751D±04
PIN NAMES
Pins |
Function |
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Dn |
PECL/LVPECL Inputs |
Qn |
ECL/LVECL Outputs |
PECL_VBB |
PECL Reference Voltage Output |
PECL |
PECL |
PECL |
1 2 3
VCC D0 D0
4
PECL VBB_
5 6
D1 D1
7
PECL VBB_
8 9 10
D2 D2 VEE
Figure 1. 20±Lead Pinout (Top View) and Logic Diagram
8/97
Motorola, Inc. 1997 |
4±1 |
REV 1 |
MC100LVEL91 MC100EL91
LVPECL INPUT DC CHARACTERISTICS
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±40°C |
0°C |
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25°C |
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85°C |
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Symbol |
Characteristic |
Min |
Max |
Min |
Max |
Min |
Typ |
Max |
Min |
Max |
Unit |
Condition |
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VCC |
Power Supply Voltage |
3.0 |
3.6 |
3.0 |
3.6 |
3.0 |
3.3 |
3.6 |
3.0 |
3.6 |
V |
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IIH |
Input HIGH Current |
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150 |
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150 |
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150 |
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150 |
μA |
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IIL |
Input LOW Current |
0.5 |
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0.5 |
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0.5 |
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0.5 |
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μA |
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VIH |
Input HIGH Voltage |
2.135 |
2.420 |
2.135 |
2.420 |
2.135 |
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2.420 |
2.135 |
2.420 |
V |
VCC = 3.3V |
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(Note 1.) |
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VIL |
Input LOW Voltage |
1.49 |
1.825 |
1.49 |
1.825 |
1.49 |
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1.825 |
1.49 |
1.825 |
V |
VCC = 3.3V |
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(Note 1.) |
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VBB |
Reference Output |
1.92 |
2.04 |
1.92 |
2.04 |
1.92 |
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2.04 |
1.92 |
2.04 |
V |
VCC = 3.3V |
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(Note 1.) |
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IGND |
Power Supply Curremt |
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10 |
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10 |
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6.0 |
10 |
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10 |
mA |
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1. DC levels vary 1:1 with VCC.
PECL INPUT DC CHARACTERISTICS
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±40°C |
0°C |
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25°C |
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85°C |
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Symbol |
Characteristic |
Min |
Max |
Min |
Max |
Min |
Typ |
Max |
Min |
Max |
Unit |
Condition |
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VCC |
Power Supply Voltage |
4.75 |
5.25 |
4.75 |
5.25 |
4.75 |
5.0 |
5.25 |
4.75 |
5.25 |
V |
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IIH |
Input HIGH Current |
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150 |
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150 |
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150 |
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150 |
μA |
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IIL |
Input LOW Current |
0.5 |
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0.5 |
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0.5 |
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0.5 |
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μA |
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VIH |
Input HIGH Voltage |
3.835 |
4.120 |
3.835 |
4.12 |
3.835 |
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4.12 |
3.835 |
4.120 |
V |
VCC = 5.0V |
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(Note 2.) |
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VIL |
Input LOW Voltage |
3.19 |
3.525 |
3.19 |
3.525 |
3.19 |
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3.525 |
3.19 |
3.525 |
V |
VCC = 5.0V |
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(Note 2.) |
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VBB |
Reference Output |
3.62 |
3.74 |
3.62 |
3.74 |
3.62 |
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3.74 |
3.62 |
3.75 |
V |
VCC = 5.0V |
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(Note 2.) |
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IGND |
Power Supply Curremt |
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11 |
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11 |
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6.0 |
11 |
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11 |
mA |
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2. DC levels vary 1:1 with VCC.
ECL/LVECL OUTPUT DC CHARACTERISTICS
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±40°C |
0°C |
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25°C |
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85°C |
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Symbol |
Characteristic |
Min |
Max |
Min |
Max |
Min |
Typ |
Max |
Min |
Max |
Unit |
Condition |
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VEE |
Power Supply |
EL91 |
±4.2 |
±5.5 |
±4.2 |
±5.5 |
±4.2 |
±4.5 |
±5.5 |
±4.2 |
±5.5 |
V |
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Voltage |
LVEL91 |
±3.0 |
±3.8 |
±3.0 |
±3.8 |
±3.0 |
±3.3 |
±3.8 |
±3.0 |
±3.8 |
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VOH |
Output HIGH Voltage |
±1085 |
±880 |
±1025 |
±880 |
±1025 |
±955 |
±880 |
±1025 |
±880 |
mV |
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VOL |
Output LOW Volrage |
±1830 |
±1555 |
±1810 |
±1620 |
±1810 |
±1705 |
±1620 |
±1810 |
±1620 |
mV |
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IEE |
Power Supply |
EL91 |
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28 |
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28 |
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22 |
28 |
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30 |
mA |
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Current |
LVEL91 |
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27 |
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27 |
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21 |
27 |
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29 |
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MOTOROLA |
4±2 |
ECLinPS and ECLinPS Lite |
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DL140 Ð Rev 3 |
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