October 2003
rev 0.4
Low Cost Frequency Multiplier
Features
Generates 2X and 4X clocks of the input clock
frequency
Input clock frequency range from 3 MHz to 78 MHz
Provides up to:
P2082A: 156 MHz output clock frequency
P2084A: 312 MHz output clock frequency
External loop filter
Low cycle-to-cycle jitter
3.3 V operating voltage range
10 mA output drives
TTL or CMOS compatible outputs
Ultra-low power CMOS design
Available in industrial temperature range
(-25C to +85C)
Available in 8-pin SOIC and TSSOP
P2082A
P2084A
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.
Product Description
The
P2082A
and
P2084A
are
versatile
frequency
Block Diagram
Alliance Semiconductor
2575, Augustine Drive
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Santa Clara, CA
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Tel: 408.855.4900
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Fax: 408.855.4999
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www.alsc.com
Notice: The information in this document is subject to change without notice.
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