Order this document by MC12022A/D
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.
MECL PLL COMPONENTS
÷64/65, ÷128/129
DUAL MODULUS PRESCALER
SEMICONDUCTOR
TECHNICAL DATA
•
•
•
•
•
•
1.1 GHz Toggle Frequency
Supply Voltage of 4.5 to 5.5 V
Low–Power 7.5 mA Typical
Operating Temperature Range of –40 to +85°C
Short Setup Time (t
set
) 16ns Maximum @ 1.1 GHz
Modulus Control Input Level Is Compatible With Standard CMOS
and TTL. Maximum Input Voltage Should Be Limited to 6.5 Vdc
D SUFFIX
PLASTIC PACKAGE
CASE 751
(SO–8)
8
1
FUNCTIONAL TABLE
SW
H
H
L
L
MC
H
L
H
L
Divide Ratio
64
65
128
129
P SUFFIX
PLASTIC PACKAGE
CASE 626
8
1
NOTES:
1. SW: H = V
CC
, L = Open. A logic L can also be applied by grouunding this pin,
but this is not recommended due to increased power soncumption.
2. MC: H = 2.0 V to V
CC
, L = GND to 0.8 V.
Figure 1. Logic Diagram (MC12022A)
PIN CONNECTIONS
IN
D
A
C
QB
C
Q
D
B
QB
Q
D
C
QB
C M
Q
1
8
7
6
5
V
CC
2
SW
3
OUT
4
IN
NC
MC
Gnd
In
In
MC
(Top View)
ORDERING INFORMATION
D
D
C
QB
C
Q
D
QB
E
Q
C
D
F
QB
C
Q
D
QB
G
Q
D
H
C S Q
QB
Device
Out
MC12022AD
MC12022AP
Operating
Temperature Range
Package
SO–8
SW
MC12022BD
MC12022BP
T
A
= – 40° to +85°C
Plastic
SO–8
Plastic
©
Motorola, Inc. 1997
Rev 3
MOTOROLA [ MOTOROLA, INC ]
