P2082A Datasheet, PDF (1/9 Pages) Alliance Semiconductor Corporation – Low Cost Frequency Multiplier

October 2003
P2082A
P2084A
rev 0.4
Low Cost Frequency Multiplier
Features
ƒ Generates 2X and 4X clocks of the input clock
frequency
ƒ Input clock frequency range from 3 MHz to 78 MHz
ƒ Provides up to:
P2082A: 156 MHz output clock frequency
P2084A: 312 MHz output clock frequency
ƒ External loop filter
ƒ Low cycle-to-cycle jitter
ƒ 3.3 V operating voltage range
ƒ 10 mA output drives
ƒ TTL or CMOS compatible outputs
ƒ Ultra-low power CMOS design
ƒ Available in industrial temperature range
(-25C to +85C)
ƒ Available in 8-pin SOIC and TSSOP
Product Description
The P2082A and P2084A are versatile frequency
multipliers that are designed specifically as cost effective
alternatives to the high precision frequency oscillator.
The P2082A/84A can generate a 2X and 4X output clock
respectively of the input frequency which allows system
cost savings by using an inexpensive crystal or resonator
to achieve high frequency multiplication.
The P2082A/84A provides up to 156 MHz and 312 MHz
output clock frequencies respectively through the use of the
Phase-Lock-Loop (PLL) technique which delivers low jitter
and high precision synthesized clocks.
Applications
The P2082A/84A is targeted towards the high frequency
CAN OSC replacement market. Applications include xDSL,
routers, networking, PC peripherals, and embedded
systems.
Block Diagram
Alliance Semiconductor
2575, Augustine Drive • Santa Clara, CA • Tel: [phone] • Fax: [phone] • www.alsc.com
Notice: The information in this document is subject to change without notice.