LMK03806_12 Datasheet, PDF (1/39 Pages) Texas Instruments – Ultra Low Jitter Clock Generator with 14 Programmable Outputs

LMK03806
March 7, 2012
Ultra Low Jitter Clock Generator with 14 Programmable
Outputs
1.0 General Description
The LMK03806 is a high performance, ultra low-jitter, multi-
rate clock generator capable of synthesizing 8 different fre-
quencies 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 inte-
ger-N PLL, low noise VCO, and programmable output di-
viders to generate multiple reference clocks for SONET,
Ethernet, Fiber Channel, XAUI, Backplane, PCIe, SATA and
Network Processors from a low cost crystal.
2.0 Target Applications
■ ^{Ultra High Speed Serial Interfaces in SONET/SDH}
■ ^{Multi-Gigabit Ethernet & 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}
3.0 Features
■ ^{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}
■ ^{Package: 64-pin LLP (9.0 x 9.0 x 0.8 mm)}
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