MC3361.PDF

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The MC3361C includes an Oscillator, Mixer, Limiting Amplifier,
Quadrature Discriminator, Active Filter, Squelch, Scan Control and Mute
Switch. This device is designed for use in FM dual conversion
communications equipment.
•
LOW POWER
NARROWBAND FM IF
Operates from 2.0 to 8.0 V Supply
SEMICONDUCTOR
TECHNICAL DATA
•
Low Drain Current 2.8 mA Typical @ V CC = 4.0 Vdc
•
Excellent Sensitivity: Input Limiting Voltage –
– 3.0 dB = 2.6 m V Typical
•
Low Number of External Parts Required
•
Operating Frequency Up to 60 MHz
16
•
Full ESD Protection
1
P SUFFIX
PLASTIC PACKAGE
CASE 648
16
1
Representative Block Diagram
D SUFFIX
PLASTIC PACKAGE
CASE 751B
(SO–16)
Mixer
Input
Gnd
Mute
Scan
Contro l
Squelch
In
Filter
Output
Filter
Input
Recovered
Audio
PIN CONNECTIONS
16
15
14
13
12
11
10
9
–
1
16
15
14
13
12
11
10
9
Mixer Input
Crystal Osc
2
3
4
5
6
7
8
Ground
Audio Mute
Scan Control
Squelch Input
Filter Output
Filter Input
Filter
Amp
Amp
Mixer Output
V CC
Limiter Input
Squelch Trigger with
Hysteresis
+
Demodulator
Decoupling
Mixer
Limiter
Amp
Quad Coil
Demodulator
Output
10 pF
1.8 k
50 k
52 k
(Top View)
Oscillator
1.8 k
ORDERING INFORMATION
1
2
3
4
5
6
7
8
Operating
Temperature Range
Mixer
Output
V CC
Limiter
Input
Quad
Coil
Device
Package
Crystal
Osc
Decoupling
MC3361CD
MC3361CP
SO–16
Plastic DIP
T A = – 30 to +70
C
This device contains 92 active transistors.
W
Motorola, Inc. 1995
MOTOROLA ANALOG IC DEVICE DATA
1
AF
°
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MC3361C
MAXIMUM RATINGS (T A = 25 ° C, unless otherwise noted.)
Rating
Pin
Symbol
Value
Unit
Power Supply Voltage
4
V CC (max)
10
Vdc
Operating Supply Voltage Range
4
V CC
2.0 to 8.0
Vdc
Detector Input Voltage
8
–
1.0
Vp–p
Input Voltage (V CC 4.0 V)
16
V 16
1.0
V RMS
Mute Function
14
V 14
–0.5 to +5.0
V pk
Junction Temperature
–
T J
150
° C
Operating Ambient Temperature Range
–
T A
–30 to +70
° C
Storage Temperature Range
–
T stg
–65 to +150
°
C
ELECTRICAL CHARACTERISTICS (V CC = 4.0 Vdc, f o = 10.7 MHz, D f = ± 3.0 kHz, f mod = 1.0 kHz, T A = 25 ° C,
unless otherwise noted.)
Characteristic
Pin
Min
Typ
Max
Unit
Drain Current (No Signal)
4
mA
Squelch “Off”
Squelch “On”
2.0
3.7
2.8
5.2
3.5
6.3
Squelch “Off”
Squelch “On”
2.0
3.7
2.8
5.2
3.5
6.3
Recovered Audio Output Voltage (V in = 10 mVrms)
9
130
170
210
mVrms
Input Limiting Voltage ( –3.0 dB Limiting)
16
–
2.6
6.0
m V
Total Harmonic Distortion
9
–
0.86
–
%
Recovered Output Voltage (No Input Signal)
9
60
190
350
mVrms
Drop Voltage AF Gain Loss
9
– 3.0
– 0.6
–
dB
Detector Output Impedance
–
–
450
–
W
Filter Gain (10 kHz) (V in = 0.3 mVrms)
–
40
50
–
dB
Filter Output Voltage
11
0.5
0.7
0.9
Vdc
Mute Function Low
14
–
30
50
W
Mute Function High
14
1.0
11
–
M
W
Scan Function Low (Mute “Off”) (V 12 = 1.0 Vdc)
13
–
0
0.4
Vdc
Scan Function High (Mute “On”) (V 12 = Gnd)
13
3.0
3.9
–
Vdc
Trigger Hysteresis
–
–
45
100
mV
Mixer Conversion Gain
3
–
28
–
dB
Mixer Input Resistance
16
–
3.3
–
k
W
Mixer Input Capacitance
16
–
9.0
–
pF
2
MOTOROLA ANALOG IC DEVICE DATA
11023831.004.png 11023831.005.png
MC3361C
Figure 1. Test Circuit
10.24 5 MHz
0. 01
Mixer Input
10.7 MHz
V CC
1
16
22 0 pF
68 pF
51
2
15
muRata
CFU455D2
FL1
3
14
Audio Mute
4
13
Scan Control
5
12
SQ SW Input
10 k
0. 1
1. 0
6
11
+
Filter Amp Out
0. 1
4 7 0 k
510
7
10
+
Filter Amp In
1.0
20 k
8.2 k
8
9
AF Output
0.01
0.1
Quad Coil
FL1 – muRata Erie North America CFU455D2 or equivalent
Quadrature Coil – Toko America Type 7MC–8128Z or equivalent
C –
m
F, unless noted
Figure 2. Audio Output, Distortion
versus Supply Voltage
Figure 3. Audio Output, Distortion
versus Temperature
190
8.0
240
T A = 25
°
C
V CC = 4.0 V
180
7.0
220
170
Audio Output
6.0
200
160
5.0
180
Audio Output
150
4.0
160
140
3.0
140
130
2.0
120
Distortion
Distortion
120
1.0
100
110
2.0
4.0
6.0
8.0
0
80
–40
–20
0
20
40
60
80
V CC , SUPPLY VOLTAGE (V)
T A , AMBIENT TEMPERATURE (
°
C)
MOTOROLA ANALOG IC DEVICE DATA
3
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Figure 4. Low Voltage Low Power Narrowband FM IF
Ceramic Filter
to Pin 5
510
4 70 k
1.0
4
3
10
11
12
R1 5 1.8 k
4
4
10.245
MH z
R4
R6
R11
5.0 k 7.0 k
10 k
R19
R21
R23
R24
R26
R27
R7
Q1
Q13
240
150
200
70
2.4 k
40 k
7.0 k
R1
15 k
Q21
Q23
Q25
Q29
R
L
1
Q5
Q 16 Q 17
Q31
Q34
220
R16
Q7
C 1
6.0
10 k
Q2
Q 8
C2
6.0
67
W
Q9 Q10
R28
13
60
10 k
2
Q27
R25
24 k
R30
10.7 MHz
Q33
5.6 k
1N
R8
R17
Q4
Q15
16
11 k
14
0.01
3.3 k
Q22
Q24
Q30
Q32
Q35
51
Q3
Q11
Q12
Q14
Q19
C 3
R18
15
Q6
R11
6.7 k
Q18
11 k
Q26
Q28
R29
180
R31
40 k
R20
R22
R L
Quad Coil
R3
Q20
3.0 k
500
R2
15 k
R5
R9
R10
R13
R14
1.4 k
1.4 k
1.4 k
1.4 k
15 k
250
15
8
20 k
4
R64
R74
R75
R78
R82
V CC
R33
R35
R52
R53
R55
R56
R58
R59
R61
R62
5.3 k
Q74
1.6 k
1.6 k
Q84
1.6 k
82 k
510
510
R42
10 k
10 k 10 k
10 k 10 k
10 k 10 k
10 k
20 k
R65
R66
C5
R80
10 k
10 k
10
Q82
Q83
1.6 k
R32
Q37
Q40
Q72
Q85
50 k
Q90
Q42
Q47
Q49
Q52
Q87
Q 55 Q 56
Q5 8 Q 59
Q6 1 Q 62
Q6 4 Q 65
Q 67 Q 68
Q70
Q45 Q46
Q 75 Q 76
Q7 7 Q 78
Q38 Q39
Q48
9
R36
R38
R49
R68
12 k
25 k
R43
R45
R47
52 k
Q79
Q80
Q88
Q89
3.2 k
40 k 4.7 k 7.5 k
Q36
Q41
R39
R41
7.5 k
C6
15 k 15 k
Q86
C 4
Q43
Q81
Q91
10
R40
R81
Q44
15 k
1.6 k
0.01
Q50
Q71
R83
Q51
32 k
Q57
Q60
R69
R73
R84
Q66
Q69
Q53
Q63
Q73
R76
R77
R79
R34
22 k
560
620
22 k
1.6 k
Q54
4.7 k
10 k
R44
R46
R72
R37
1.3 k 1.3 k
R63
R67
R71
1.6 k
R48
R50
R54
R57
R60
1.6 k
1.6 k
470
1.5 k 1.6 k
750
1.6 k
1.6 k
470
15
R51 1.8 k
R69 50 k
5
6
7
to C.F.
0.1
0.1
V CC
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MC3361C
Figure 5. Input Limiting Voltage
Figure 6. Overall Gain, Noise and AM Rejection
1.0
10
V CC = 4.0 V
Audio Output (1.0 kHz)
Referred to 0 dB for
S + N ± 3.0 kHz FM
0
0
– 1.0
–10
– 2.0
–20
S + N (30% AM)
–30
– 3.0
–40
– 4.0
–50
N
– 5.0
–60
0.001
0.01
0.1
1.0
–70
0.001
0.01
0.1
1.0
10
INPUT SIGNAL (mVrms)
INPUT SIGNAL (mVrms)
Figure 7. Filter Amp Response
Figure 8. Filter Amp Gain
70
80
60
70
50
60
40
50
40
30
30
20
20
10
10
1.0 k
10 k
100 k
1.0 M
0
0
1.0
2.0
3.0
4.0
5.0
6.0
7.0
8.0
f, FREQUENCY (Hz)
V CC , SUPPLY VOLTAGE (V)
Figure 9. Supply Current
8.0
6.0
Squelch “On”
4.0
Squelch “Off”
2.0
0
0
2.0
4.0
6.0
8.0
V CC , SUPPLY VOLTAGE (Vdc)
MOTOROLA ANALOG IC DEVICE DATA
5
– 6.0
0
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