P2084_11 Datasheet, PDF (1/7 Pages) ON Semiconductor – Low Cost Frequency Multiplier

P2084A
Low Cost Frequency Multiplier
Features
• Generates 4x clock of the input clock frequency
• Input clock frequency: 3MHz to 78MHz
• Output clock frequency:12MHz to 312MHz
• External loop filter
• Low Cycle-to-Cycle Jitter
• 3.3V operating voltage range
• 10mA output drives
• TTL or CMOS compatible outputs
• Ultra-low power CMOS design
• Available in 8-pin SOIC
Product Description
P2084A is a versatile frequency multiplier that is designed
specifically as cost effective alternatives to the high
precision frequency oscillator.
The P2084A can generate a 4x output clock of the input
frequency which allows system cost savings by using an
inexpensive crystal or resonator to achieve high frequency
multiplication.
The P2084A provides up to 312MHz 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 P2084A is targeted towards the high frequency CAN
OSC replacement market. Applications include xDSL,
routers, networking, PC peripherals, and embedded
systems.
Block Diagram
FS0 FS1 LF
VDD
XIN / CLKIN
XOUT
Crystal
Oscillator
Frequency
Divider
Feedback
Divider
PLL
Modulation
Phase
Detector
VCO
Output
Divider
ModOUT
VSS
©2010 SCILLC. All rights reserved.
JUNE 2011 – Rev. 2
Publication Order Number:
P2084/D