MOTOROLA
SEMICONDUCTOR TECHNICAL DATA
Voltage Controlled
Multivibrator
The MC1658 is a voltage±controlled multivibrator which provides appropriate level shifting to produce an output compatible with MECL III and MECL 10,000 logic levels. Frequency control is accomplished through the use of voltage±variable current sources which control the slew rate of a single external capacitor.
The bias filter may be used to help eliminate ripple on the output voltage levels at high frequencies and the input filter may be used to decouple noise from the analog input signal.
Pinout: 16±Lead Package (Top View)
NC |
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NC |
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CX2 |
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INF |
BIAS |
CX1 |
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NC |
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NC |
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16 |
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15 |
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14 |
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13 |
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12 |
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11 |
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10 |
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9 |
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1 |
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2 |
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3 |
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4 |
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5 |
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6 |
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7 |
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8 |
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VCC1 |
VCX |
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NC |
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Q |
VCC2 |
Q |
NC |
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VEE |
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LOGIC DIAGRAM
CX1 11 
CX2 14
VCX 2 
Q 
6
Bias Filter 
Q 
4
Input Filter 
VCC1 = Pin 1
VCC2 = Pin 5
VEE = Pin 8
Pin Conversion Table
MC1658
VOLTAGE
CONTROLLED
MULTIVIBRATOR
L SUFFIX
16±LEAD CERAMIC PACKAGE
CASE 620±10
Not Recommended for New Designs
P SUFFIX
16±LEAD PLASTIC PACKAGE
CASE 648±08
D SUFFIX
PLASTIC SOIC PACKAGE
CASE 751B±05
FN SUFFIX
20±LEAD PLCC PACKAGE
CASE 775±02
16 PIN DIP |
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
10 |
11 |
12 |
13 |
14 |
15 |
16 |
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20 PIN PLCC |
2 |
3 |
4 |
5 |
7 |
8 |
9 |
10 |
12 |
13 |
14 |
15 |
17 |
18 |
19 |
20 |
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1/97
Motorola, Inc. 1997 |
1 |
REV 1 |
MC1658
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VCC2 |
VCC1 |
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5 |
1 |
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100 |
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100 |
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Q 4 |
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6 Q |
1k |
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1000 |
VCX 2 |
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12 Bias Filter |
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1k |
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CX1 11 |
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14 CX2 |
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80 |
80 |
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1k |
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1k |
250 |
Input Filter 13 |
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125 |
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125 |
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500 |
500 |
62 |
500 |
250 |
8 VEE
Figure 1. Circuit Schematic
TEST VOLTAGE VALUES
@ Test |
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Vdc ±1% |
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Temperature |
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VIH |
VIL |
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V3 |
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IIHA |
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±30°C |
0 |
±2.0 |
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±1.0 |
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+2.0 |
+25°C |
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0 |
±2.0 |
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±1.0 |
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+2.0 |
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+85°C |
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0 |
±2.0 |
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±1.0 |
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+2.0 |
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Note: SOIC ªDº package guaranteed ±30°C to +70°C only |
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MOTOROLA |
2 |
HIPERCOMM |
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BR1334 Ð Rev 4 |
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