Datasheet MC13055D, MC13055P Datasheet (Motorola)

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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

• Signal Strength Indicator Linear Over 3 Decades

• Available in Surface Mount Package

• Easy Application, Few Peripheral Components

Order this document by MC13055/D



WIDEBAND

FSK

RECEIVER

SEMICONDUCTOR

TECHNICAL DATA

P SUFFIX

PLASTIC PACKAGE

CASE 648

40MHz

IF

Input

Ω

)

(50

Figure 1. Block Diagram and Application Circuit

V

CC

L1

22pF

0.01

0.01

0.01

27pF

0.1

1
2

3

0.8V

4
5

6

7

V

8

CC

–
+

Limiter

1.0k
39pF

L2

16
15

+

14

–

100pF

13
12

11
10

9

Data
Output

Carrier
Detect

68pF

3.9k

5.0k

3.9k

Squelch
Adjust
(meter)

D SUFFIX

PLASTIC PACKAGE

CASE 751B

(SO–16)

PIN CONNECTIONS

Comparator Gnd

Comparator V

CC

IF Ground

IF V

CC

Limiter Input

Limiter Bias

Quad Bias

ORDERING INFORMATION

Device

MC13055D
MC13055P

Temperature Range

1

2

3
4
5
6
7
8

Operating

TA = – 40 to +85°C

16

Data Out

+

15

Comparator

–

14
13

Carrier Detect

12

Meter Drive

11

Detector

10

Out

9

Quad Input

Package

Plastic DIP

SO–16

MOTOROLA ANALOG IC DEVICE DATA

 Motorola, Inc. 1996 Rev 2

1

MC13055

MAXIMUM RATINGS

Rating Symbol Value Unit

Power Supply Voltage V
Operating Supply Voltage Range V2, V4 3.0 to 12 Vdc
Junction Temperature T
Operating Ambient Temperature Range T
Storage Temperature Range T
Power Dissipation, Package Rating P

CC(max)

J

A

stg

D

15 Vdc

150 °C

–40 to +85 °C

–65 to +150 °C

1.25 W

ELECTRICAL CHARACTERISTICS (V

Characteristic Conditions Min Typ Max Unit

Total Drain Current 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
Sensitivity for 20 dB S + N/N, BW = 5.0 MHz VIN – 20 – µVrms
S + N/N at Vin = 50 µV V10 – V11 – 30 – dB
Input Impedance @ 40 MHz R

Quadrature Coil Loading R

= 5.0 Vdc, fo = 40 MHz, f

CC

Pin 5, Ground –

in

C

in
in

C

in

= 1.0 MHz, ∆f = ±1.0 MHz, TA = 25°C, test circuit of Figure 2.)

mod

Pin 9 to 8 –

–

–

4.2

4.5

7.6

5.2

–
–

–
–

Figure 2. T est Circuit

1

16

kΩ
pF

kΩ
pF

Input

V

CC

22pF

L1

0.01

0.01

27pF

0.010.01

0.1

2
3

4
5

6

7

8

1.0k

39pF

L2

2

15

14

13

12

11

10

100pF

Carrier
Detect Output

Meter Drive

Detector
Output

9

3.9k3.9k

Coils – Shielded
Coilcraft UNI–10/142
L1 Gray 8–1/2 Turns, nominal 300 nH
L2 Black 10–1/2 Turns, nominal 380 nH

MOTOROLA ANALOG IC DEVICE DATA

MC13055

Figure 3. Overall Gain, Noise, AM Rejection Figure 4. Meter Current versus Signal

0

Output f

–10

mod

∆

f = 1.0 MHz

–20
–30

Noise

–40
–50

AMR 1.0 kHz

30%

RELATIVE OUTPUT (dB)

–60

–100

SIGNAL INPUT (dBm)

Figure 5. Untuned Input: Limiting Sensitivity

versus Frequency

–10
–20

–30
–40

–50
–60
–70
–80

, INPUT LIMITING SENSITIVITY (dBm)

–90

IN

V

–100

0

Input

10

0.1

0.1
5

51

7

MC13055

9

20k

8

f, INPUT FREQUENCY (MHz)

= 1.0 MHz

µ

600
500

400

VCC = 5.0 V, 7.0 V

3.0 V
12 V

300
200

l12, METER CURRENT ( A)

100

0–20–60 –40–80

0

–100

0–20–40–60–80

INPUT SIGNAL (dBm)

Figure 6. Untuned Input: Meter Current

versus Frequency

800

Input 0 dBm

700

–10

µ

600

–20

500

–30
–40

400

–50

300

–60

200

–70

l12, METER CURRENT ( Adc)

100

–80

0

10090807060504030200

f, INPUT FREQUENCY (MHz)

Input

0.1

0.1

MC13055

9

20k

8

5

51

7

1009080706050403020100

Figure 7. Limiting Sensitivity and Detuning

versus Supply V oltage

–40

–50

–60

–70

–80

, INPUT LIMITING SENSITIVITY (dBm)

–90

IN

V

40 MHz

Limiting

Sensitivity

VCC, SUPPLY VOLTAGE (Vdc)

Quadrature
Coil Tuning

119.05.0 7.03.00

MOTOROLA ANALOG IC DEVICE DATA

Figure 8. Detector Current and Power Supply

Current versus Supply Voltage

40 3

40.2

40.1

40.0

39.9

1200

µ

1000 50

I10 + I11

800

39.8

l10 + l11, DETECTOR CURRENT ( Adc)

600

400
200

I2 + I4

0

1.0

7.05.03.00

39.7

39.6

39.5

39.4

QUAD COIL TUNING (MHz)

39.3

39.2

15

131.0
VCC, SUPPLY VOLTAGE (Vdc)

60

40

30

20

10

l2 + I4, POWER SUPPLY CURRENT (mA)

0

13 15119.0

3

MC13055

Figure 10. Carrier Detect Threshold versus

Figure 9. Recovered Audio versus T emperature

1000

4.0

2.0

–2.0
–4.0
–6.0

–8.0

–10
–12

V10, RELATIVE AUDIO OUTPUT (dB)

0

–60

TA, AMBIENT TEMPERATURE (

140120100806040200–20–40

°

C)

900

800

700

600

V12, CARRIER DETECT THRESHOLD (mV)

500

–60

Figure 11. Meter Current versus Temperature Figure 12. Input Limiting versus Temperature

µ

l12, METER CURRENT ( A)

600

500

400

300

200

100

–60

–10

–40

Input 0 dBm

–20
–30

–40
–50

–60

TA, AMBIENT TEMPERATURE (

–50

–60

–70

–80

, INPUT LIMITING SENSITIVITY (dBm)

–90

IN

V

140120100806040200–20

°

C)

–60

T emperature

TA, AMBIENT TEMPERATURE (

TA, AMBIENT TEMPERATURE (

140120100806040200–20–40

°

C)

140120100806040200–20–40

°

C)

Figure 13. Input Impedance, Pin 5

1.0
Cp = 4p5

0.5

0.2

0

200M

0.2
100M

0.5

0.5

50M

Rp = 4k2
Y = 0.24 + j1.1

2.01.00.2

20M

30M

2.0

10M

5.0

1.0M

5.0

1.0

4

MOTOROLA ANALOG IC DEVICE DATA

BNC

MC13055

Figure 14. T est Fixture

(Component Layout)

.01

22P

.01

.3

µ

H

.1

27P

.01

.01

.4 µH

MC13055

1K

39P

100P

3.9K

68P

3.9K
5K
POT

4

I

CARRIER

DETECT

METER

DRIVE

DETECTOR OUTPUT

SQUELCH
CONTROL

4

I

(Circuit Side View)

DATA OUT

MC13055

GND VCC

INPUT

4

I

MOTOROLA ANALOG IC DEVICE DATA

4

I

5

MC13055

47

2

80

76

16

74

78 79

77

94

85

92

92

89

13

91

86

14

90

87

84

83

82

81

1

48

39

38

10

11

30

29

28

27

45

15

37

8

9

36

33 34

31 32

35

26

25

46

65

49

50

51

53

52

73

Figure 15. Internal Schematic

72

71

Figure 15. d

69

70

67

66

12

68

25

26

60 61 62 63 64

58 57 56 55 54

BB

13 14 15 16 17 18 19 20 21 22 23 24

4

5

6

7

59

3

6

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

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 (V
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.

CC)

MOTOROLA ANALOG IC DEVICE DATA

7

–T–

OUTLINE DIMENSIONS

PLASTIC PACKAGE

–A–

916

B

18

F

H

G

D

16 PL

0.25 (0.010) T

–A–

16 9

18

G

SEATING

PLANE

D

16 PL

0.25 (0.010) A

M

T

C

S

SEATING

–T–

PLANE

K

M

M

A

PLASTIC PACKAGE

CASE 751B–05

–B–

8 PLP

0.25 (0.010) B

K

C

M

S

B

S

MC13055

P SUFFIX

CASE 648–08

ISSUE R

L

J

D SUFFIX

(SO–16)
ISSUE J

M

S

R

X 45

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 MIN MAX MIN MAX

A 0.740 0.770 18.80 19.55
B 0.250 0.270 6.35 6.85
C 0.145 0.175 3.69 4.44
D 0.015 0.021 0.39 0.53
F 0.040 0.70 1.02 1.77
G 0.100 BSC 2.54 BSC

M

_

F

J

H 0.050 BSC 1.27 BSC
J 0.008 0.015 0.21 0.38
K 0.110 0.130 2.80 3.30
L 0.295 0.305 7.50 7.74
M 0 10 0 10
S 0.020 0.040 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.

DIM MIN MAX MIN MAX

A 9.80 10.00 0.386 0.393
B 3.80 4.00 0.150 0.157
C 1.35 1.75 0.054 0.068
D 0.35 0.49 0.014 0.019

F 0.40 1.25 0.016 0.049

G 1.27 BSC 0.050 BSC

J 0.19 0.25 0.008 0.009
K 0.10 0.25 0.004 0.009
M 0 7 0 7

____

P 5.80 6.20 0.229 0.244
R 0.25 0.50 0.010 0.019

MILLIMETERSINCHES

____

INCHESMILLIMETERS

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the suitability of its products for any particular purpose, nor does Motorola assume any liability arising out of the application or use of any product or circuit, and
specifically disclaims any and all liability, including without limitation consequential or incidental damages. “T ypical” parameters which may be provided in Motorola
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8

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MOTOROLA ANALOG IC DEVICE DATA

MC13055/D