MC12026A Datasheet, PDF (1/8 Pages) ON Semiconductor – 1.1 GHz Dual Modulus Prescaler

MC12026A
1.1 GHz Dual Modulus
Prescaler
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 (tset ) 6.0 ns Typical @ 1.1 GHz
• Modulus Control Input Level is Compatible with Standard CMOS
and TTL
FUNCTIONAL TABLE
SW
MC
Divide Ratio
H
H
8
H
L
9
L
H
16
L
L
17
1. SW: H = VCC, 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 VCC, L = GND to 0.8 V.
MAXIMUM RATINGS
Characteristics
Symbol
Value
Unit
Power Supply Voltage, Pin 2
Operating Temperature Range
Storage Temperature Range
Modulus Control Input, Pin 6
VCC
–0.5 to 7.0
Vdc
TA
–40 to 85
°C
Tstg
–65 to 150
°C
MC
–0.5 to 6.5
Vdc
Maximum Output Current, Pin 4
IO
NOTE: ESD data available upon request.
10.0
mA
http://onsemi.com
8
1
SO–8
D SUFFIX
CASE 751
PIN CONNECTIONS
IN ¹
VCC 2
SW 3
OUT ⁴
8 IN
7 _NC
6 MC
5 Gnd
(Top View)
ORDERING INFORMATION
Device
Package
Shipping
MC12026AD
SO–8
98 Units/Rail
MC12026ADR2 SO–8 2500 Tape & Reel
DEVICE MARKING INFORMATION
See general marking information in the device marking
section on page 6 of this data sheet.
© Semiconductor Components Industries, LLC, 2001
1
November, 2001 – Rev. 7
Publication Order Number:
MC12026A/D