PL60208X
PCIe Octal, Ultra-Low Jitter,
HCSL Frequency Synthesizer
General Description
The PL602081 and PL602082 are members of the PCI
Express family of devices from Micrel and provide an
extremely low-noise timing solution for PCI Express clock
signals. They are based upon a unique synthesizer
architecture that provides very low phase noise.
The devices operate from a 3.3V or 2.5V power supply
and synthesize eight HCSL output clocks. The PL602081
synthesizes 25MHz, 100MHz, or 200MHz and the
PL602082 synthesizes 25MHz, 125MHz, or 250MHz. The
PL60208x devices accept a 25MHz crystal or LVCMOS
reference clock.
Datasheets and support documentation are available on
Micrel’s web site at: www.micrel.com.
Block Diagram
Features
Generates eight HCSL clock outputs.
PL602081 output frequencies: 25MHz, 100MHz, or
200MHz.
PL602082 output frequencies: 25MHz, 125MHz, or
250MHz.
2.5V or 3.3V operating range.
Typical phase jitter: 250fs for 12KHz to 20MHz.
Compliant with PCI Express Gen1, Gen2, and Gen3.
Industrial temperature range (–40C to +85C).
RoHS and PFOS compliant.
Available in 44-pin 7mm 7mm QFN package.
Applications
Servers
Storage systems
Switches and routers
Gigabit Ethernet
Set-top boxes/DVRs
Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel +1 (408) 944-0800 • fax + 1 (408) 474-1000 • http://www.micrel.com
December 11, 2013
Revision 1.1
hbwhelp@micrel.com or (408) 955-1690
