Device

Operating

Temperature Range

Package

MC13055

SEMICONDUCTOR

TECHNICAL DATA

WIDEBAND

FSK

RECEIVER

ORDERING INFORMATION

MC13055D

MC13055P

TA = – 40 to +85°C

SO–16

Plastic DIP

PIN CONNECTIONS

Order this document by MC13055/D

P SUFFIX

PLASTIC PACKAGE

CASE 648

D SUFFIX

PLASTIC PACKAGE

CASE 751B

(SO–16)

Comparator Gnd

–

Comparator

10

16

15

14

13

12

+

11

9

8

7

6

5

4

3

2

Limiter Bias

Quad Input

Detector

Out

Comparator VCC

Meter Drive

Data Out

Carrier Detect

Limiter Input

1

IF Ground

Quad Bias

IF VCC

1

MOTOROLA ANALOG IC DEVICE DATA

Wideband FSK Receiver

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.

Figure 1. Block Diagram and Application Circuit

Squelch

Adjust

(meter)

40MHz

IF

Input

(50

Ω)

+

–

+

–

10

11

14

12

13

15

9

16

2

8

7

6

5

4

3

L2

39pF

3.9k

3.9k

68pF

5.0k

Carrier

Detect

100pF

Data

Output

1.0k

Limiter

VCC

0.1

27pF

0.01

L1

22pF

0.8V

1

0.01

0.01

VCC

© Motorola, Inc. 1996

Rev 2