MC1658 Motorola, MC1658 Datasheet

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MC1658

Manufacturer Part Number
MC1658
Description
Voltage Controlled Multivibrator
Manufacturer
Motorola
Datasheet

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MOTOROLA
SEMICONDUCTOR TECHNICAL DATA
Voltage Controlled
Multivibrator
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.
voltage levels at high frequencies and the input filter may be used to
decouple noise from the analog input signal.
1/97
Pin Conversion Table
16 PIN DIP
20 PIN PLCC
Motorola, Inc. 1997
The MC1658 is a voltage–controlled multivibrator which provides
The bias filter may be used to help eliminate ripple on the output
V CC1 V CX
Input Filter
NC
Bias Filter
16
1
Pinout: 16–Lead Package (Top View)
V CX 2
1
2
NC
15
2
2
3
CX2
CX1 11
NC
14
3
LOGIC DIAGRAM
3
4
V CC1 = Pin 1
V CC2 = Pin 5
INF
V EE = Pin 8
13
Q
4
4
5
V CC2
BIAS
12
5
7
5
Q
Q
CX2 14
6
8
1
CX1
11
Q
6
7
9
NC
NC
10
7
10
8
6
4
V EE
NC
9
8
12
9
10
13
14
11
12
15
13
17
14
18
REV 1
15
19
Not Recommended for New Designs
16
20
16–LEAD CERAMIC PACKAGE
16–LEAD PLASTIC PACKAGE
PLASTIC SOIC PACKAGE
MULTIVIBRATOR
20–LEAD PLCC PACKAGE
CONTROLLED
MC1658
CASE 751B–05
VOLTAGE
CASE 620–10
CASE 775–02
D SUFFIX
CASE 648–08
FN SUFFIX
L SUFFIX
P SUFFIX

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MC1658 Summary of contents

Page 1

... 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 ...

Page 2

... MC1658 100 CX1 11 Input Filter 13 125 500 500 @ Test Temperature Temperature V IH – Note: SOIC “D” package guaranteed – +70 C only MOTOROLA 100 125 Figure 1. Circuit Schematic TEST VOLTAGE VALUES ...

Page 3

... All input and output cables to the scope are equal lengths of 50 ohm coaxial cable. Wire length should be < 1/4 inch from input pin and TP out to output pin. Note: All power supply and logic levels are shown shifted 2.0V positive. Figure 2. AC Test Circuit and Waveforms 3 MC1658 Max Unit Condition – mAdc ...

Page 4

... MC1658 1000 150 MHz @ MHz @ 5 pF 100 35 MHz @ Vdc –1 Vdc – 2 Vdc 0 100 c x (pF) Figure 3. Output Frequency versus Capacitance for Various Values of Input Voltage 1600 c x (pF) = FREQUENCY–CAPACITANCE PRODUCT AT 1500 c x (pF) = 1400 1300 ...

Page 5

... MC1658 NOTES: 1. DIMENSIONING AND TOLERANCING PER ANSI Y14.5M, 1982. 2. CONTROLLING DIMENSION: INCH. 3. DIMENSION L TO CENTER OF LEAD WHEN FORMED PARALLEL. 4. DIMENSION F MAY NARROW TO 0.76 (0.030) WHERE THE LEAD ENTERS THE CERAMIC BODY. INCHES MILLIMETERS DIM MIN ...

Page 6

... MC1658 Y BRK -N- -L- - 0.007 (0.180 0.007 (0.180 -T- J VIEW S G1 0.010 (0.250 – NOTES: 1. DATUMS -L-, -M-, AND -N- DETERMINED WHERE TOP OF LEAD SHOULDER EXITS PLASTIC BODY AT MOLD PARTING LINE. 2. DIM G1, TRUE POSITION TO BE MEASURED AT DATUM -T-, SEATING PLANE ...

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