MC12089 Datasheet, PDF (1/4 Pages) Motorola, Inc – MECL PLL COMPONENTS ÷64/128 PRESCALER

Order this document by MC12089/D
2.8 GHz Prescaler
The MC12089 is a single modulus divide by 64 and 128 prescaler for low
power frequency division of a 2.8 GHz high frequency input signal. The low
power (10.2 mA typical at 5.0 V) and high operating frequency features make
this prescaler ideal in satellite TV receiver applications.
Divide ratio control input SW selects the required divide ratio of ÷64 or
÷128.
On–chip output termination provides 2.5 mA of output current to drive a
12 pF (typical) high impedance load. The output voltage swing under typical
supply voltage and temperature conditions is 1.2 V. If additional drive is
required for the prescaler output, an external resistor can be added in
parallel from the OUT pin to Gnd to increase the output power. Care must be
taken not to exceed the maximum allowable current through the output.
• 2.8 GHz Toggle Frequency
• Supply Voltage 4.5 to 5.5 V
• Low Power Dissipation 51 mW Typical
• Operating Temperature Range of –40 to 85°C
FUNCTIONAL TABLE
SW
H
L
NOTE: H = VCC, L = Open.
Divide Ratio
64
128
MAXIMUM RATINGS
Characteristic
Symbol
Range
Unit
Power Supply Voltage, Pin 4
Operating Temperature Range
Storage Temperature Range
Maximum Output Current, Pin 7
NOTE: ESD data available upon request.
VCC
–0.5 to 7.0
Vdc
TA
–40 to 85
°C
Tstg
–65 to 150
°C
IO
4.0
mA
MC12089
MECL PLL COMPONENTS
÷64/128 PRESCALER
SEMICONDUCTOR
TECHNICAL DATA
8
1
D SUFFIX
PLASTIC PACKAGE
CASE 751
(SO–8)
8
1
P SUFFIX
PLASTIC PACKAGE
CASE 626
PIN CONNECTIONS
Gnd ¹
IN 2
IN 3
8 NC
7 _OUT
6 NC
VCC ⁴
5 SW
(Top View)
ORDERING INFORMATION
Device
Operating
Temperature Range
Package
MC12089D
TA = – 40° to +85°C
MC12089P
SO–8
Plastic
© Motorola, Inc. 1997
Rev 3