MC12080 Datasheet, PDF (1/4 Pages) ON Semiconductor – 1.1 GHz Prescaler High Frequency Input Signal

Order this document by MC12080/D
1.1 GHz Prescaler
The MC12080 is a single modulus divide by 10, 20, 40, 80 prescaler for
low power frequency division of a 1.1 GHz high frequency input signal.
Divide ratio control inputs SW1, SW2 and SW3 select the required divide
ratio of ÷10, ÷20, ÷40, or ÷80.
An external load resistor is required to terminate the output. A 820 Ω
resistor is recommended to achieve a 1.2 Vpp output swing, when dividing a
1.1 GHz input signal by the minimum divide by ratio of 10, assuming a 8.0 pF
load. Output current can be minimized dependent on conditions such as
output frequency, capacitive load being driven, and output voltage swing
required. Typical values for load resistors are included in the Vout
specification for various divide ratios at 1.1 GHz input frequency.
• 1.1 GHz Toggle Frequency
• Supply Voltage 4.5 to 5.5 V
• Low Power 3.7mA Typical at VCC = 5.0 V
• Operating Temperature Range of –40 to 85°C
FUNCTIONAL TABLE
SW1
SW2
SW3
L
L
L
L
L
H
L
H
L
L
H
H
H
L
L
H
L
H
H
H
L
H
H
H
NOTE: SW1, SW2 and SW3: H = VCC, L = Open.
Divide Ratio
80
40
40
20
40
20
20
10
MAXIMUM RATINGS
Characteristic
Symbol
Range
Unit
Power Supply Voltage, Pin 2
Operating Temperature Range
Storage Temperature Range
Maximum Output Current, Pin 4
NOTE: ESD data available upon request.
VCC
–0.5 to 7.0
Vdc
TA
–40 to 85
°C
Tstg
–65 to 150
°C
IO
10
mA
MC12080
MECL PLL COMPONENTS
÷10/20/40/80 PRESCALER
SEMICONDUCTOR
TECHNICAL DATA
8
1
D SUFFIX
PLASTIC PACKAGE
CASE 751
(SO–8)
8
1
P SUFFIX
PLASTIC PACKAGE
CASE 626
PIN CONNECTIONS
IN ¹
VCC 2
SW1 3
OUT ⁴
8 IN
7 _SW3
6 SW2
5 Gnd
(Top View)
ORDERING INFORMATION
Device
Operating
Temperature Range
Package
MC12080D
TA = – 40° to +85°C
MC12080P
SO–8
Plastic
© Motorola, Inc. 1997
Rev 2