MC12022A

MC12022B

SEMICONDUCTOR

TECHNICAL DATA

MECL PLL COMPONENTS

÷64/65, ÷128/129

DUAL MODULUS PRESCALER

Order this document by MC12022A/D

Device

Operating

Temperature Range

Package

ORDERING INFORMATION

MC12022AD

MC12022AP

SO–8

Plastic

P SUFFIX

PLASTIC PACKAGE

CASE 626

PIN CONNECTIONS

D SUFFIX

PLASTIC PACKAGE

CASE 751

(SO–8)

8

1

1

8

IN

(Top View)

8

IN

SW

OUT

NC

MC

Gnd

7

6

5

1

2

3

4

MC12022BD

MC12022BP

SO–8

Plastic

Consider MC12052A for New Designs

1.1GHz Dual Modulus Prescaler

The MC12022A can be used with CMOS synthesizers requiring positive

edges to trigger internal counters such as Motorola’s MC145XXX series in a

PLL to provide tuning signals up to 1.1GHz in programmable frequency

steps.

The MC12022B can be used with CMOS synthesizers requiring negative

edges to trigger internal counters.

A Divide Ratio Control (SW) permits selection of a 64/65 or 128/129 divide

ratio as desired.

The Modulus Control (MC) selects the proper divide number after SW has

been biased to select the desired divide ratio.

and TTL. Maximum Input Voltage Should Be Limited to 6.5 Vdc

FUNCTIONAL TABLE

SW

MC

Divide Ratio

H

H

64

H

L

65

L

H

128

L

L

129

but this is not recommended due to increased power soncumption.

Figure 1. Logic Diagram (MC12022A)

A

H

G

F

E

D

In

MC

In

SW

Out

Q

S

Q

C

QB

D

Q

C

QB

D

QB

C

Q

D

C

QB

D

QB

C

Q

D

QB

C

Q

D

B

QB

C

Q

D

C

QB

C

Q

D

M

© Motorola, Inc. 1997

Rev 3