MC12022A Datasheet, PDF (1/8 Pages) Motorola, Inc – 1.1GHz Dual Modulus Prescaler

Order this document by MC12022A/D
Consider MC12052A for New Designs
1.1GHz Dual Modulus Prescaler
MC12022A
MC12022B
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.
• 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
MECL PLL COMPONENTS
÷64/65, ÷128/129
DUAL MODULUS PRESCALER
SEMICONDUCTOR
TECHNICAL DATA
8
1
D SUFFIX
PLASTIC PACKAGE
CASE 751
(SO–8)
FUNCTIONAL TABLE
SW
MC
Divide Ratio
H
H
64
H
L
65
L
H
128
L
L
129
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.
8
1
P SUFFIX
PLASTIC PACKAGE
CASE 626
Figure 1. Logic Diagram (MC12022A)
DQ
DQ
DQ
A
B
C
QB
C QB
C QB
CM
In
In
MC
DQ
D
C QB
D QB
E
CQ
DQ
F
C QB
D QB
G
CQ
D QB
H
C
Q
S
SW
PIN CONNECTIONS
IN ¹
V_CC 2
SW 3
OUT ⁴
8 IN
7 _NC
6 MC
5 Gnd
(Top View)
ORDERING INFORMATION
Device
Operating
Temperature Range
Package
Out
MC12022AD
SO–8
MC12022AP
T_A = – 40° to +85°C
MC12022BD
Plastic
SO–8
MC12022BP
Plastic
© Motorola, Inc. 1997
Rev 3