MC12026A_06 Datasheet, PDF (1/6 Pages) ON Semiconductor – 1.1 GHz Dual Modulus Prescaler

MC12026A
1.1 GHz Dual Modulus
Prescaler
Description
The MC12026 is a high frequency, low voltage dual modulus
prescaler used in phase−locked loop (PLL) applications.
The MC12026A can be used with CMOS synthesizers requiring
positive edges to trigger internal counters in a PLL to provide tuning
signals up to 1.1 GHz in programmable frequency steps.
A Divide Ratio Control (SW) permits selection of an 8/9 or 16/17
divide ratio as desired.
The Modulus Control (MC) selects the proper divide number after
SW has been biased to select the desired divide ratio.
Features
• 1.1 GHz Toggle Frequency
• Supply Voltage 4.5 to 5.5 V
• Low Power 4.0 mA Typical
• Operating Temperature Range of −40 to 85°C
• The MC12026 is Pin Compatible with the MC12022
• Short Setup Time (t_set ) 6.0 ns Typical @ 1.1 GHz
• Modulus Control Input Level is Compatible with Standard CMOS
and TTL
• Pb−Free Packages are Available
Table 1. FUNCTIONAL TABLE
SW
MC
Divide Ratio
H
H
8
H
L
9
L
H
16
L
L
17
1. SW: H = V_CC, L = Open. A logic L can also be applied by grounding this pin,
but this is not recommended due to increased power consumption.
2. MC: H = 2.0 V to V_CC, L = GND to 0.8 V.
Table 2. MAXIMUM RATINGS
Characteristics
Symbol
Value
Unit
Power Supply Voltage, Pin 2
Operating Temperature Range
Storage Temperature Range
Modulus Control Input, Pin 6
V_CC
−0.5 to 7.0
Vdc
T_A
−40 to 85
°C
T_stg
−65 to 150
°C
MC
−0.5 to 6.5
Vdc
Maximum Output Current, Pin 4
I_O
10.0
mA
Maximum ratings are those values beyond which device damage can occur.
Maximum ratings applied to the device are individual stress limit values (not
normal operating conditions) and are not valid simultaneously. If these limits are
exceeded, device functional operation is not implied, damage may occur and
reliability may be affected.
NOTE: ESD data available upon request.
http://onsemi.com
8
1
SOIC−8
D SUFFIX
CASE 751
MARKING
DIAGRAM
8
026A
ALYW
G
1
A
= Assembly Location
L
= Wafer Lot
Y
= Year
W
= Work Week
G
= Pb−Free Package
PIN CONNECTIONS
IN ¹
V_CC 2
SW 3
OUT 4
8 IN
7 _NC
6 MC
5 GND
(Top View)
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 5 of this data sheet.
© Semiconductor Components Industries, LLC, 2006
1
January, 2006 − Rev. 8
Publication Order Number:
MC12026A/D