Device

Operating

Temperature Range

Package

MC12040

SEMICONDUCTOR

TECHNICAL DATA

PHASE–FREQUENCY

DETECTOR

ORDERING INFORMATION

MC12040P

TA = 0° to +75°C

Plastic

FN SUFFIX

PLASTIC PACKAGE

CASE 775

(PLCC)

PIN CONNECTIONS

Order this document by MC12040/D

3

19

4

8

Not Recommended for New Designs

14

1

P SUFFIX

PLASTIC PACKAGE

CASE 646

Vref

NC

Compensation

(Top View)

NC

Voltage Feedback

NC

Current Sense

NC

RT/CT

VCC

VC

Output

Gnd

Power Ground

1

2

3

4

14

13

12

11

5

6

7

10

9

8

Phase-Frequency Detector

The MC12040 is a phase–frequency detector intended for use in systems

requiring zero phase and frequency difference at lock. In combination with a

voltage controlled oscillator (such as the MC1648, MC12147, MC12148 or

MC12149), it is useful in a broad range of phase–locked loop applications.

Pin Conversion Table

14 PIN DIP

1

2

3

4

5

6

7

8

9

10

11

12

13

14

20 PIN PLCC

2

3

4

6

8

9

10

12

13

14

16

18

19

20

LOGIC DIAGRAM

R

S

Q

S

RQ

R 6

V 9

4 U (fR>fV)

3 U (fR>fV)

12 D (fV>fR)

11 D (fV>fR)

VCC1 = Pin 1

VCC2 = Pin 14

VEE = Pin 7

TRUTH TABLE

This is not strictly a functional truth table; i.e., it does not cover all possible

modes of operation. However, it gives a sufficient number of tests to

ensure that the device will function properly in all modes of operation.

0

0

1

0

R

1

0

1

1

1

1

1

1

1

0

1

0

1

1

1

V

1

1

1

0

1

0

1

0

1

1

1

X

X

X

X

U

1

1

1

1

0

0

0

0

0

0

0

X

X

X

X

D

0

0

0

0

0

0

1

1

1

1

0

X

X

X

X

U

0

0

0

0

1

1

1

1

1

1

1

X

X

X

X

D

1

1

1

1

1

1

0

0

0

0

1

Inputs

Outputs

© Motorola, Inc. 1997

Rev 3