MOTOROLA MC13055D Wideband fsk receiver Datasheet

Order this document by MC13055/D
The MC13055 is intended fo RF data link systems using carrier
frequencies up to 40 MHz and FSK (frequency shift keying) data rates up to
2.0 M Baud (1.0 MHz). This design is similar to the MC3356, except that it
does not include the oscillator/mixer. The IF bandwidth has been increased
and the detector output has been revised to a balanced configuration. The
received signal strength metering circuit has been retained, as has the
versatile data slicer/comparator.
• Input Sensitivity 20 µV @ 40 MHz
•
•
•
WIDEBAND
FSK
RECEIVER
SEMICONDUCTOR
TECHNICAL DATA
Signal Strength Indicator Linear Over 3 Decades
Available in Surface Mount Package
Easy Application, Few Peripheral Components
P SUFFIX
PLASTIC PACKAGE
CASE 648
D SUFFIX
PLASTIC PACKAGE
CASE 751B
(SO–16)
PIN CONNECTIONS
Figure 1. Block Diagram and Application Circuit
VCC
0.01
16
1
+
–
2
3
40MHz
IF
Input
(50Ω)
0.8V
0.01
4
22pF
27pF
L1
0.1
5
6
15
14
13 100pF
–
+
Data
Output
Carrier
Detect
1
16
Comparator VCC
2
+ 15
IF Ground
3
– 14
IF VCC
4
13
Carrier Detect
Limiter Input
5
12
Meter Drive
5.0k
11
10
7
0.01
Comparator
6
11
7
10
8
9
Limiter Bias
12
Limiter
Squelch
Adjust
(meter)
Data Out
Comparator Gnd
Quad Bias
Detector
Out
Quad Input
68pF
3.9k
9
8 VCC
1.0k
39pF
ORDERING INFORMATION
3.9k
Device
MC13055D
L2
MC13055P
Operating
Temperature Range
TA = – 40 to +85°C
 Motorola, Inc. 1996
MOTOROLA ANALOG IC DEVICE DATA
Package
SO–16
Plastic DIP
Rev 2
1
MC13055
MAXIMUM RATINGS
Rating
Symbol
Value
Unit
VCC(max)
15
Vdc
V2, V4
3.0 to 12
Vdc
Junction Temperature
TJ
150
°C
Operating Ambient Temperature Range
TA
–40 to +85
°C
Storage Temperature Range
Tstg
–65 to +150
°C
Power Dissipation, Package Rating
PD
1.25
W
Power Supply Voltage
Operating Supply Voltage Range
ELECTRICAL CHARACTERISTICS (VCC = 5.0 Vdc, fo = 40 MHz, fmod = 1.0 MHz, ∆f = ±1.0 MHz, TA = 25°C, test circuit of Figure 2.)
Characteristic
Total Drain Current
Conditions
Min
Typ
Max
Unit
12 + 14
–
20
25
mA
Data Comparator Pull–Down Current
I16
–
10
–
mA
Meter Drive Slope versus Input
I12
4.5
7.0
9.0
µA/dB
Carrier Detect Pull–Down Current
I13
–
1.3
–
mA
Carrier Detect Pull–Up Current
I13
–
500
–
µA
Carrier Detect Threshold Voltage
V12
690
800
1010
mV
DC Output Current
I10, I11
–
430
–
µA
Recovered Signal
V10 – V11
–
350
–
mVrms
VIN
–
20
–
µVrms
V10 – V11
–
30
–
dB
Sensitivity for 20 dB S + N/N, BW = 5.0 MHz
S + N/N at Vin = 50 µV
Input Impedance @ 40 MHz
Rin
Cin
Pin 5, Ground
–
–
4.2
4.5
–
–
kΩ
pF
Quadrature Coil Loading
Rin
Cin
Pin 9 to 8
–
–
7.6
5.2
–
–
kΩ
pF
Figure 2. Test Circuit
1
16
2
15
0.01
VCC
3
100pF
14
0.01
4
22pF
13
5
Input
12
27pF
L1
Carrier
Detect Output
Meter Drive
6
11
0.1
0.01
7
10
8
9
Detector
Output
0.01
3.9k
3.9k
1.0k
39pF
Coils – Shielded
Coilcraft UNI–10/142
L1 Gray 8–1/2 Turns, nominal 300 nH
L2 Black 10–1/2 Turns, nominal 380 nH
L2
2
MOTOROLA ANALOG IC DEVICE DATA
MC13055
Figure 3. Overall Gain, Noise, AM Rejection
Figure 4. Meter Current versus Signal
Output fmod = 1.0 MHz
∆f = 1.0 MHz
–10
l12, METER CURRENT (µ A)
RELATIVE OUTPUT (dB)
0
–20
Noise
–30
–40
AMR 1.0 kHz
30%
–50
600
VCC = 5.0 V, 7.0 V
500
3.0 V
400
12 V
300
200
100
–60
–60
–40
SIGNAL INPUT (dBm)
–20
0
–100
0
800
0
–10
0.1
Input
–20
5
51
9
20k
MC13055
7
–30
8
0.1
–40
–50
–60
–70
–80
0
10
20
30 40
50
60
70
f, INPUT FREQUENCY (MHz)
80
90
40 MHz
–50
–60
–70
Limiting
Sensitivity
–80
–90
l10 + l11, DETECTOR CURRENT ( µ Adc)
40 3
40.2
40.1
40.0
39.9
39.8
39.7
39.6
39.5
39.4
39.3
39.2
Quadrature
Coil Tuning
–20
600
–10
Input
51
–30
400
–40
300
–50
3.0
5.0
7.0
9.0
11
VCC, SUPPLY VOLTAGE (Vdc)
13
MOTOROLA ANALOG IC DEVICE DATA
15
20k
MC13055
7
–20
500
9
5
8
0.1
–60
200
–70
–80
10
20
30
40 50
60
70
f, INPUT FREQUENCY (MHz)
80
90
60
1200
1000
50
I10 + I11
40
800
600
30
I2 + I4
400
20
200
10
0
0 1.0
0
100
Figure 8. Detector Current and Power Supply
Current versus Supply Voltage
QUAD COIL TUNING (MHz)
Figure 7. Limiting Sensitivity and Detuning
versus Supply Voltage
VIN, INPUT LIMITING SENSITIVITY (dBm)
Input 0 dBm
0
0
100
0.1
700
100
–90
–100
–40
–60
–40
INPUT SIGNAL (dBm)
Figure 6. Untuned Input: Meter Current
versus Frequency
l12, METER CURRENT (µ Adc)
VIN, INPUT LIMITING SENSITIVITY (dBm)
Figure 5. Untuned Input: Limiting Sensitivity
versus Frequency
–80
0 1.0
3.0
5.0
7.0
9.0
11
VCC, SUPPLY VOLTAGE (Vdc)
13
0
15
l2 + I4, POWER SUPPLY CURRENT (mA)
–80
–100
3
MC13055
Figure 10. Carrier Detect Threshold versus
Temperature
V12, CARRIER DETECT THRESHOLD (mV)
V10, RELATIVE AUDIO OUTPUT (dB)
Figure 9. Recovered Audio versus Temperature
4.0
2.0
0
–2.0
–4.0
–6.0
–8.0
–10
–12
–60
–40
–20
0
20
40
60 80 100
TA, AMBIENT TEMPERATURE (°C)
120
1000
140
900
800
700
600
500
–60
Figure 11. Meter Current versus Temperature
VIN, INPUT LIMITING SENSITIVITY (dBm)
l12, METER CURRENT ( µ A)
Input 0 dBm
–10
–20
–30
400
–40
300
–50
200
100
–60 –40
–60
–20 0
20 40
60 80 100
TA, AMBIENT TEMPERATURE (°C)
120
–20
0
20 40
60 80 100
TA, AMBIENT TEMPERATURE (°C)
120
140
Figure 12. Input Limiting versus Temperature
600
500
–40
140
–50
–60
–70
–80
–90
–60 –40 –20
0
20
40 60 80 100 120
TA, AMBIENT TEMPERATURE (°C)
140
Figure 13. Input Impedance, Pin 5
1.0
Cp = 4p5
0.5
Rp = 4k2
Y = 0.24 + j1.1
0.2
0
5.0
0.2
0.5
1.0
2.0
1.0M
200M
10M
0.2
5.0
100M
50M
20M
30M
2.0
0.5
1.0
4
MOTOROLA ANALOG IC DEVICE DATA
MC13055
Figure 14. Test Fixture
(Component Layout)
.1
100P
4I
.01
3.9K
27P
.01
.3 µH
1K
3.9K
.01
BNC
68P
MC13055
22P
.01
5K
POT
39P
.4 µH
4I
(Circuit Side View)
GND
DATA OUT
VCC
CARRIER
DETECT
INPUT
METER
DRIVE
4I
DETECTOR OUTPUT
SQUELCH
CONTROL
MC13055
4I
MOTOROLA ANALOG IC DEVICE DATA
5
6
3
6
7
B
13
59
B
14
15
58
16
60
17
Figure 15. d
5
4
57
18
12
61
19
56
20
66
71
62
21
67
68
55
25
26
22
69
72
73
63
23
70
65
54
24
13
76
46
64
74
52
45
25
26
28
83
81
27
77
Figure 15. Internal Schematic
35
9
31
15
84
85
29
87
86
32
89
53
33
30
91
34
8
82
11
37
36
92
78 79
38
10
90
48
94
51
39
92
80
50
1
14
16
2
49
47
MC13055
MOTOROLA ANALOG IC DEVICE DATA
MC13055
GENERAL DESCRIPTION
The MC13055 is an extended frequency range FM IF,
quadrature detector, signal strength detector and data
shaper. It is intended primarily for FSK data systems. The
design is very similar to MC3356 except that the
oscillator/mixer has been removed, and the frequency
capability of the IF has been raised about 2:1. The detector
output configuration has been changed to a balanced,
open–collector type to permit symmetrical drive of the data
shaper (comparator). Meter drive and squelch features have
been retained.
The limiting IF is a high frequency type, capable of being
operated up to 100 MHz. It is expected to be used at 40 MHz
in most cases. The quadrature detector is internally coupled
to the IF, and a 2.0 pF quadrature capacitor is internally
provided. The 20 dB quieting sensitivity is approximately
20 µV, tuned input, and the IF can accept signals up to
220 mVrms without distortion or change of detector
quiescent DC level.
The IF is unusual in that each of the last 5 stages of the
6 stage limiter contains a signal strength sensitive, current
sinking device. These are parallel connected and buffered
MOTOROLA ANALOG IC DEVICE DATA
to produce a signal strength meter drive which is fairly linear
for IF input signals of 20 µV to 20 mVrms (see Figure 4).
A simple squelch arrangement is provided whereby the
meter current flowing through the meter load resistance flips
a comparator at about 0.8 Vdc above ground. The signal
strength at which this occurs can be adjusted by changing
the meter load resistor. The comparator (+) input and output
are available to permit control of hysteresis. Good positive
action can be obtained for IF input signals of above
20 µVrms. A resistor (R) from Pin 13 to Pin 12 will provide
VCC/R of feedback current. This current can be correlated to
an amount of signal strength hysteresis by using Figure 4.
The squelch is internally connected to the data shaper.
Squelch causes the data shaper to produce a high (VCC)
output.
The data shaper is a complete “ floating” comparator, with
diodes across its inputs. The outputs of the quadrature
detector can be fed directly to either or preferably both inputs
of the comparator to produce a squared output swinging from
VCC to ground in inverted or noninverted form.
7
MC13055
OUTLINE DIMENSIONS
P SUFFIX
PLASTIC PACKAGE
CASE 648–08
ISSUE R
–A–
16
9
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.
B
F
C
DIM
A
B
C
D
F
G
H
J
K
L
M
S
L
S
–T–
SEATING
PLANE
K
H
G
D
M
J
16 PL
0.25 (0.010)
T A
M
M
D SUFFIX
PLASTIC PACKAGE
CASE 751B–05
(SO–16)
ISSUE J
–A–
16
1
P
8 PL
0.25 (0.010)
8
M
B
S
G
R
K
F
X 45 _
C
–T–
SEATING
PLANE
M
D
16 PL
0.25 (0.010)
M
T B
S
A
S
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
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.
9
–B–
INCHES
MIN
MAX
0.740
0.770
0.250
0.270
0.145
0.175
0.015
0.021
0.040
0.70
0.100 BSC
0.050 BSC
0.008
0.015
0.110
0.130
0.295
0.305
0_
10 _
0.020
0.040
J
DIM
A
B
C
D
F
G
J
K
M
P
R
MILLIMETERS
MIN
MAX
9.80
10.00
3.80
4.00
1.35
1.75
0.35
0.49
0.40
1.25
1.27 BSC
0.19
0.25
0.10
0.25
0_
7_
5.80
6.20
0.25
0.50
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
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8
◊
MC13055/D
MOTOROLA ANALOG IC DEVICE
DATA