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MC12095 Datasheet PDF : 6 Pages
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Order this document by MC12095/D
2.5 GHz Low Power Prescaler
With Stand-By Mode
The MC12095 is a single modulus prescaler for low power frequency
division of a 2.5 GHz high frequency input signal. Motorola’s advanced
MOSAIC™ V technology is utilized to acheive low power dissipation of
24 mW at a minimum supply voltage of 2.7 V.
On–chip output termination provides output current to drive a 2.0 pF
(typical) high impedance load. 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.
Divide ratio control input (SW) selects the required divide ratio of ÷2 or ÷4.
Stand–By mode is available to reduce current drain to 100µA typical when
the standby pin SB is switched LOW disabling the prescaler.
• 2.5 GHz Toggle Frequency
• Supply Voltage 2.7 V to 5.5 Vdc
• Low Power 8.7 mA Typical
• Operating Temperature –40 to 85°C
• Divide by 2 or 4 Selected by the SW Pin
NOTE: For applications up to 1.1 GHz, please consult the MC12093
datasheet.
MOSAIC V is a trademark of Motorola
FUNCTIONAL TABLE
SW
Divide Ratio
H
2
L
4
NOTES: 1. SW: H = (VCC – 0.4 V) to VCC; L = OPEN
2. SB: H = 2.0 V to VCC; L = GND to 0.8 V
MC12095
MECL PLL COMPONENTS
÷2, ÷4 LOW POWER
PRESCALER
WITH STAND–BY MODE
SEMICONDUCTOR
TECHNICAL DATA
8
1
D SUFFIX
PLASTIC PACKAGE
CASE 751
(SO–8)
8
1
SD SUFFIX
PLASTIC PACKAGE
CASE 940
(SSOP–8)
PIN CONNECTIONS
C1
50 Ω
C2
AC Test Circuit
VCC
IN
SB
SW
IN
OUT
GND
VCC = 2.7 to 5.5 V
C3
EXTERNAL
COMPONENTS
C1 = C2 = 1000 pF
C3 = 0.1 µF
C4 = 2.0 pF
C4
IN 1
VCC 2
NC 3
OUT 4
8 IN
7 SB
6 SW
5 Gnd
(Top View)
ORDERING INFORMATION
Device
Operating
Temp Range
Package
MC12095D
MC12095SD
TA =
– 40° to +85°C
SO–8
SSOP–8
© Motorola, Inc. 1997
Rev 3
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