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MC12032B Schematic ( PDF Datasheet ) - Motorola Semiconductors

Teilenummer MC12032B
Beschreibung 2.0GHz Dual Modules Prescaler
Hersteller Motorola Semiconductors
Logo Motorola Semiconductors Logo 




Gesamt 5 Seiten
MC12032B Datasheet, Funktion
Order this document by MC12032A/D
Consider MC12054A for New Design
2.0GHz Dual Modulus Prescaler
MC12032A
MC12032B
The MC12032A 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 2.0 GHz in programmable frequency
steps.
The MC12032B 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.
NOTE: The “B” Version Is Not Recommended for New Designs
2.0 GHz Toggle Frequency
Supply Voltage 4.5 to 5.5 V
MC12032A for Positive Edge Triggered Synthesizers
12 mA Maximum, –40 to 85°C, VCC = 5.5 Vdc
Modulus Control Input Level Is Compatible
With Standard CMOS and TTL
Low–Power 8.5 mA Typical
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
HH
64
HL
65
LH
128
LL
129
NOTES: 1. SW: H = VCC, 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 VCC, L = GND to 0.8 V.
DESIGN GUIDE
Criteria
Value
Unit
Internal Gate Count*
67 ea
Internal Gate Propagation Delay
200 ps
Internal Gate Power Dissipation
0.75 mW
Speed Power Product
NOTE: * Equivalent to a two–input NAND gate
0.15
pJ
MAXIMUM RATINGS
Characteristic
Symbol
Range
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
NOTE: ESD data available upon request.
8
1
P SUFFIX
PLASTIC PACKAGE
CASE 626
PIN CONNECTIONS
IN 1
VCC 2
SW 3
OUT 4
8 IN
7 NC
6 MC
5 Gnd
(Top View)
ORDERING INFORMATION
Device
Operating
Temp Range
Package
MC12032AD
SO–8
MC12032AP
TA =–40° to +85°C
MC12032BD
Plastic
SO–8
MC120328BP
Plastic
© Motorola, Inc. 1997
Rev 3





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