MC12018 Datasheet, PDF (1/4 Pages) Motorola, Inc – 520MHz Dual Modulus Prescaler

520 MHz Dual Modulus Prescaler
The MC12018 is a dual modulus prescaler which divides by 128 and 129.
An internal regulator is provided to allow this device to be used over a wide
range of power supply voltages. The devices may be operated by applying a
supply voltage of 5.0 Vdc ±10% at Pin 7, or by applying an unregulated
voltage source from 5.5 Vdc to 9.5 Vdc to Pin 8.
• 520 MHz Toggle Frequency
• Low–Power 8.0 mA Typical
• Control Input Is Compatible With Standard CMOS and TTL
• Supply Voltage 4.5 V to 9.5 V
• On–Chip 10 kΩ Resistor from Positive Edge to Ground
Order this document by MC12018/D
MC12018
MECL PLL COMPONENTS
÷128/129 DUAL MODULUS
PRESCALER
SEMICONDUCTOR
TECHNICAL DATA
8
1
D SUFFIX
PLASTIC PACKAGE
CASE 751
(SO–8)
SIMPLIFIED BLOCK DIAGRAM
Control
Input
1
0.001 µF
Signal
Input
5
Signal
6
Gnd
0.001 µF
Vreg
7
0.1 µF
÷N / N+1
3 _POS
Edge
10 k
NEG
2 ^Edge
4
Gnd
VCC
8
0.1 µF
Voltage
Regulator
1. Vreg at Pin 7 is not guaranteed to be between 4.5 and
5.5 V when VCC is being applied to Pin 8
2. Pin 7 is not to be used as a source of regulated output
voltage
3. 10 kΩ pulldown recommended with negative edge
output (Pin 2)
8
1
P SUFFIX
PLASTIC PACKAGE
CASE 626
PIN CONNECTIONS
IN ¹
NE 2
PE 3
Gnd ⁴
8 VCC
7 _Vreg
6 SGnd
5 SIN
(Top View)
ORDERING INFORMATION
Device
Operating
Temperature Range
Package
MC12018D
TA = – 40° to +85°C
MC12018P
SO–8
Plastic
© Motorola, Inc. 1997
Rev 2