MC12053A Datasheet, PDF (1/5 Pages) Motorola, Inc – 1.1 GHz Super Low Power Dual Modulus Prescaler With Stand-By Mode

Freescale Semiconductor, Inc.^{Order this document by MC12053A/D}
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Dual Modulus Prescaler
With Stand-By Mode
The MC12053A is a super low power ÷64/65, ÷128/129 dual modulus
prescaler. Motorola’s advanced Bipolar MOSAIC™ V technology is utilized to
achieve low power dissipation of 4.3 mW at a minimum supply voltage of
2.7 V.
The Divide Ratio Control input, SW, permits selection of divide ratio as
desired. A HIGH on SW selects ÷64/65; an OPEN on SW selects ÷128/129.
The Modulus Control input, MC, selects the proper divide number after SW
has been biased to select the desired divide ratio.
Stand–by mode is featured to reduce current drain to 50 µA typical at
2.7 V when the stand–by pin, SB, is switched LOW, disabling the prescaler.
On–chip output termination provides 500 µA (typical) output current, which is
sufficient to drive a CMOS synthesizer input high impedance load (8.0 pF
typical).
• 1.1 GHz Toggle Frequency
• Supply Voltage of 2.7 to 5.5 V
• Low Power 1.5 mA Typical at VCC = 2.7 V
• Operating Temperature Range of –40 to 85°C
• On–Chip Output Termination
• The MC12053A Is Pin and Functionally Compatible With the MC12036
• Modulus Control Input Level Is Compatible With Standard CMOS and
TTL
MOSAIC V is a trademark of Motorola
FUNCTIONAL TABLE
SW
MC
Divide Ratio
H
H
64
H
L
65
L
H
128
L
L
129
NOTES: 1. SW: H = VCC – 0.5 to 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 & SB: H = 2.0 V to VCC, L = Gnd to 0.8 V.
MC12053A
MECL PLL COMPONENTS
÷64/65, ÷128/129 LOW POWER
DUAL MODULUS PRESCALER
WITH STAND–BY MODE
SEMICONDUCTOR
TECHNICAL DATA
8
1
D SUFFIX
PLASTIC PACKAGE
CASE 751
(SO–8)
PIN CONNECTIONS
IN ¹
VCC 2
SW 3
OUT ⁴
8 IN
7 _SB
6 MC
5 Gnd
(Top View)
MAXIMUM RATINGS
Characteristic
Power Supply Voltage, Pin 2
Operating Temperature Range
Storage Temperature Range
Modulus Control Input, Pin 6
Maximum Output Current, Pin 4
NOTE: ESD data available upon request.
Symbol
Range
Unit
VCC
–0.5 to 7.0
Vdc
TA
–40 to 85
°C
Tstg
–65 to 150
°C
MC
–0.5 to VCC Vdc
IO
4.0
mA
ORDERING INFORMATION
Device
Operating
Temp Range
Package
MC12053AD TA = –40 to 85°C
SO–8
© Motorola, Inc. 1998
MOTOROLA RF/IF DEVICE DATA For More Information On This Product,
Go to: www.freescale.com
Rev 5
1