LMK03806_15 Datasheet, PDF (1/66 Pages) Texas Instruments – Ultra Low Jitter Clock Generator With 14 Programmable Outputs

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LMK03806
SNAS522I – SEPTEMBER 2011 – REVISED NOVEMBER 2015
LMK03806 Ultra Low Jitter Clock Generator With 14 Programmable Outputs
1 Features
•1 High Performance, Ultra Low Jitter Clock
Generator
• Low Jitter
– < 50-fs Jitter (1.875 MHz – 20 MHz) at 312.5-
MHz Output Frequency
– < 150-fs Jitter (12 kHz – 20 MHz) at 312.5-
MHz Output Frequency
• Generates Multiple Clocks from a Low-Cost
Crystal or External Clock.
• 14 Outputs With Programmable Output Format
(LVDS, LVPECL, CMOS)
• Up to 8 Unique Output Frequencies.
• Industrial Temperature Range: –40 to 85 °C
• Tunable VCO Frequency from 2.37 – 2.6 GHz
• Programmable Dividers to Generate Multiple
Clocks from a Low Cost Crystal.
• 3.15-V to 3.45-V Operation
2 Applications
• Ultra High-Speed Serial Interfaces in SONET/SDH
• Multi-Gigabit Ethernet and Fiber Channel Line
Cards
• Base Band Units (BBUs) for RAN Applications
• GPON OLT/ONU , High-Speed Serial Interface
such as PCIe, XAUI, SATA, SAS
• Clocking ADC, and DACs
• Clocking DSP, Microprocessors, and FPGAs
3 Description
The LMK03806 device is a high-performance, ultra
low-jitter, multi-rate clock generator capable of
synthesizing 8 different frequencies on 14 outputs at
frequencies of up to 2.6 GHz. Each output clock is
programmable in LVDS, LVPECL or LVCMOS format.
The LMK03806 integrates a high-performance
integer-N PLL, low-noise VCO, and programmable
output dividers to generate multiple reference clocks
for SONET, Ethernet, Fiber Channel, XAUI,
Backplane, PCIe, SATA, and Network Processors
from a low-cost crystal.
Device Information⁽¹⁾
PART NUMBER
PACKAGE
BODY SIZE (NOM)
LMK03806
WQFN (64)
9.00 mm × 9.00 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
Functional Block Diagram
OSCin
PLL
CLKout0
CLKout1
Divide
CLKout2
CLKout3
Divide
CLKout4
CLKout5
Divide
Divide
Divide
Divide
Divide
OSCout0
OSCout1
CLKout6
CLKout7
CLKout8
CLKout9
CLKout10
CLKout11
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.