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.
MC1658
VOLTAGE
CONTROLLED
MULTIVIBRATOR
Pinout: 16–Lead Package
(Top View)
NC
16
NC
15
CX2
14
INF
13
BIAS
12
CX1
11
NC
10
NC
9
L SUFFIX
16–LEAD CERAMIC PACKAGE
CASE 620–10
Not Recommended for New Designs
1
2
3
NC
4
Q
5
VCC2
6
Q
7
NC
8
VEE
P SUFFIX
16–LEAD PLASTIC PACKAGE
CASE 648–08
VCC1 VCX
LOGIC DIAGRAM
CX1 11
CX2 14
D SUFFIX
PLASTIC SOIC PACKAGE
CASE 751B–05
VCX 2
Q
Bias Filter
Q
Input Filter
4
FN SUFFIX
20–LEAD PLCC PACKAGE
CASE 775–02
VCC1 = Pin 1
VCC2 = Pin 5
VEE = Pin 8
6
Pin Conversion Table
16 PIN DIP
20 PIN PLCC
1
2
2
3
3
4
4
5
5
7
6
8
7
9
8
10
9
12
10
13
11
14
12
15
13
17
14
18
15
19
16
20
1/97
©
Motorola, Inc. 1997
1
REV 1
MC1658
VCC2
5
VCC1
1
100
100
Q4
1k
VCX 2
1k
CX1 11
80
1k
Input Filter 13
80
1k
250
1000
6Q
12 Bias Filter
14 CX2
125
125
500
500
62
500
250
8
VEE
Figure 1. Circuit Schematic
TEST VOLTAGE VALUES
@ Test
Temperature
–30°C
+25°C
+85°C
Vdc
±1%
VIH
0
0
0
VIL
–2.0
–2.0
–2.0
V3
–1.0
–1.0
–1.0
IIHA
+2.0
+2.0
+2.0
Note: SOIC “D” package guaranteed –30°C to +70°C only
MOTOROLA
2
HIPERCOMM
BR1334 — Rev 4
MC1658
ELECTRICAL CHARACTERISTICS
(VEE = –5.2V, VCC = 0V [GND] )
–30°C
Symbol
IE
IinH
VOH
VOL
Characteristic
Power Supply Drain Current
Input Current
Output Voltage “Q” HIGH
Output Voltage “Q” LOW
Min
–
–
–1.045
–1.89
Max
–
–
–0.875
–1.65
+25°C
Min
–
–
–0.96
–1.85
Max
32
350
–0.81
–1.62
+85°C
Min
–
–
–0.89
–1.83
Max
–
–
–0.7
–1.575
Unit
mAdc
µAdc
Vdc
Vdc
Condition
VIH to VCX Limit Applies for
1 or 2
VIH to VCX
1
V3 to VCX. Limits Apply for 1
or 2
AC CHARACTERISTICS
(VEE = –3.2V, VCC = +2.0V )
–30°C
Symbol
t+
t–
fosc1
fosc2
TR
3
Tuning Ratio Test
Characteristic
Rise Time (10% to 90%)
Fall Time (10% to 90%)
Oscillator Frequency
Min
–
–
130
–
–
Max
2.7
2.7
–
–
–
Min
–
–
130
78
3.1
+25°C
Typ
1.6
1.4
155
100
4.5
14).
14).
Max
2.7
2.7
175
120
–
+85°C
Min
–
–
110
–
–
Max
3.0
3.0
–
–
–
–
Unit
ns
ns
MHz
VIHA to VCX, CX2
5
from
Pin 11 to Pin 14
CX2
5
from Pin 11 to Pin 14
Condition
(See Figure 2)
VIHA to VCX, CX1
4
from Pin
11 to Pin 14
1
Germanium diode (0.4 drop) forward biased from 11 to 14 (11
2
Germanium diode (0.4 drop) forward biased from 14 to 11 (11
3
TR =
Output frequency at VCX
Output frequency at VCX
+
GND
+ *
2.0V
4
CX1 = 5.0pF connected from pin 11 to pin 14.
5
CX2 = 10pF connected from pin 11 to pin 14.
VCC
+2.0Vdc
VCC1 1
0.01µF 12
Bias Filter
0.001µF 13
Input Filter
2
VCX
11
0.1µF
CX
14
CX
8
0.1µF
–3.2Vdc
VEE
CX
Q
4 Coax
Channel “B”
Input 2
50 ohm termination to ground located in each scope channel input.
All input and output cables to the scope are equal lengths of 50 ohm
coaxial cable. Wire length should be < 1/4 inch from TPin to input pin
and TPout to output pin.
Note: All power supply and logic levels are shown shifted 2.0V positive.
Coaxial Cables
(Equal lengths, 50Ω)
To Scope
Q
50%
50%
t–
90%
10%
t+
5
VCC2
6 Coax
Q
0.1µF
Q
Channel “A”
Input 2
50%
50%
90%
10%
t–
t+
Figure 2. AC Test Circuit and Waveforms
HIPERCOMM
BR1334 — Rev 4
3
MOTOROLA
MC1658
1000
150 MHz @ 5 pF
100
35 MHz @ 5 pF
10
VCX = 0 Vdc
1
75 MHz @ 5 pF
10,000
∆
f, FREQUENCY DEVIATION, RMS (Hz)
VCC = + 5.2 Vdc
VEE = 0 Vdc
1000
100
VCX = –1 Vdc
VCX = – 2 Vdc
DC CONTROL INPUT = 4 Vdc
10
0.1
1
10
100
0.1
1
10
100
cx (pF)
1000
10,000
f, OPERATING FREQUENCY (MHz)
Figure 3. Output Frequency versus Capacitance
for Various Values of Input Voltage
Figure 4. RMS Noise Deviation versus
Operating Frequency
fo
•
Cx ; FREQUENCY-CAPACITANCE PRODUCT (MHz-pF)
1600
1500 cx (pF) = FREQUENCY–CAPACITANCE PRODUCT AT
1400
cx (pF) =
DESIRED VCX DESIRED FREQUENCY (MHz)
1300
1200
1100
1000
900
800
700
600
500
400
300
200
– 2 –1.8 –1.6 –1.4 –1.2 –1 – 0.8 – 0.6 – 0.4 – 0.2
VCX, INPUT VOLTAGE (Vdc)
VEE = –5.2V, VCC = 0V.
For Use at VEE = 0V, VCC = +5V (VCXP = +5V – VCX)
VCXP = Positive Input Voltage
0
Figure 5. Frequency Capacitance Product versus Control Voltage (VCX)
MOTOROLA
4
HIPERCOMM
BR1334 — Rev 4
MC1658
OUTLINE DIMENSIONS
L SUFFIX
CERAMIC PACKAGE
CASE 620–10
ISSUE V
9
-A-
16
-B-
1
8
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.
DIM
A
B
C
D
E
F
G
J
K
L
M
N
INCHES
MIN
MAX
0.750 0.785
0.240 0.295
—
0.200
0.015 0.020
0.050 BSC
0.055 0.065
0.100 BSC
0.008 0.015
0.125 0.170
0.300 BSC
15°
0°
0.020 0.040
MILLIMETERS
MIN
MAX
19.05 19.93
6.10
7.49
—
5.08
0.39
0.50
1.27 BSC
1.40
1.65
2.54 BSC
0.21
0.38
3.18
4.31
7.62 BSC
15°
0°
1.01
0.51
C
L
-T-
SEATING
PLANE
N
E
F
D
G
16 PL
K
M
J
16 PL
0.25 (0.010)
M
M
T
B
S
0.25 (0.010)
T
A
S
-A-
16
9
P SUFFIX
PLASTIC PACKAGE
CASE 648–08
ISSUE R
B
1
8
NOTES:
1. DIMENSIONING AND TOLERANCING PER ANSI
Y14.5M, 1982.
2. CONTROLLING DIMENSION: INCH.
3. DIMENSION L TO CENTER OF LEADS WHEN
FORMED PARALLEL.
4. DIMENSION B DOES NOT INCLUDE MOLD FLASH.
5. ROUNDED CORNERS OPTIONAL.
DIM
A
B
C
D
F
G
H
J
K
L
M
S
INCHES
MIN
MAX
0.740 0.770
0.250 0.270
0.145 0.175
0.015 0.021
0.040 0.070
0.100 BSC
0.050 BSC
0.008 0.015
0.110 0.130
0.295 0.305
0°
10°
0.020 0.040
MILLIMETERS
MIN
MAX
18.80 19.55
6.35
6.85
3.69
4.44
0.39
0.53
1.02
1.77
2.54 BSC
1.27 BSC
0.21
0.38
2.80
3.30
7.50
7.74
0°
10°
0.51
1.01
F
S
C
L
-T-
H
G
D
16 PL
0.25 (0.010)
M
SEATING
PLANE
K
J
T A
M
M
–A
–
16
9
D SUFFIX
PLASTIC SOIC PACKAGE
CASE 751B–05
ISSUE J
–B
–
P
8 PL
0.25 (0.010)
M
1
8
B
M
G
F
NOTES:
1. DIMENSIONING AND TOLERANCING PER ANSI
Y14.5M, 1982.
2. CONTROLLING DIMENSION: MILLIMETER.
3. DIMENSIONS A AND B DO NOT INCLUDE
MOLD PROTRUSION.
4. MAXIMUM MOLD PROTRUSION 0.15 (0.006)
PER SIDE.
5. DIMENSION D DOES NOT INCLUDE DAMBAR
PROTRUSION. ALLOWABLE DAMBAR
PROTRUSION SHALL BE 0.127 (0.005) TOTAL
IN EXCESS OF THE D DIMENSION AT
MAXIMUM MATERIAL CONDITION.
DIM
A
B
C
D
F
G
J
K
M
P
R
MILLIMETERS
MIN
MAX
9.80 10.00
4.00
3.80
1.75
1.35
0.49
0.35
1.25
0.40
1.27 BSC
0.25
0.19
0.25
0.10
7°
0°
6.20
5.80
0.50
0.25
INCHES
MIN
MAX
0.386 0.393
0.150 0.157
0.054 0.068
0.014 0.019
0.016 0.049
0.050 BSC
0.008 0.009
0.004 0.009
0°
7°
0.229 0.244
0.010 0.019
K
C
–T
SEATING
–
PLANE
R
X 45°
M
D
16 PL
0.25 (0.010)
M
J
T
B
S
A
S
HIPERCOMM
BR1334 — Rev 4
5
MOTOROLA
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