MC12080_06 Datasheet, PDF (1/4 Pages) ON Semiconductor – 1.1 GHz Prescaler

MC12080
1.1 GHz Prescaler
Description
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. An
820 W resistor is recommended to achieve a 1.2 V_pp 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 V_out specification for various divide
ratios at 1.1 GHz input frequency.
Features
• 1.1 GHz Toggle Frequency
• Supply Voltage 4.5 to 5.5 V
• Low Power 3.7 mA Typical at V_CC = 5.0 V
• Operating Temperature Range of −40 to 85°C
• Pb−Free Packages are Available
Table 1. FUNCTIONAL TABLE
SW1
L
L
L
L
H
H
H
H
SW2
L
L
H
H
L
L
H
H
SW3
L
H
L
H
L
H
L
H
NOTE: SW1, SW2 and SW3: H = V_CC, L = Open.
Divide Ratio
80
40
40
20
40
20
20
10
Table 2. MAXIMUM RATINGS
Rating
Symbol
Value
Unit
Power Supply Voltage, Pin 2
V_CC
−0.5 to 7.0
Vdc
Operating Temperature Range
T_A
−40 to 85
°C
Storage Temperature Range
T_stg
−65 to 150
°C
Maximum Output Current, Pin 4
I_O
10
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
12080
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
SW1 3
Out 4
8 In
7 _SW3
6 SW2
5 GND
(Top View)
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 3 of this data sheet.
© Semiconductor Components Industries, LLC, 2006
1
January, 2006 − Rev. 6
Publication Order Number:
MC12080/D