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The LMK00308SQ is a 3GHz, 8-output differential fanout buffer. This buffer is used for high-frequency, low-jitter clock/data distribution and level translation. The input clock can be selected from two general-purpose inputs or one crystal input. The selected input clock is distributed to two groups of four differential outputs and one LVCMOS output. The two differential output groups can be independently configured as LVPECL, LVDS or HCSL drivers, or disabled. The LVCMOS outputs have synchronisation enable inputs for short pulse free operation when enabled or disabled. The LMK00308 operates from a 3.3V core supply and three independent 3.3V/2.5V output supplies.

The LMK00308SQ offers high performance, versatility, and power efficiency, making it ideal for replacing fixed output buffer devices while increasing the timing margin in the system.

Features of LMK00308SQ

3:1 Input Multiplexer

Two general-purpose inputs operate up to 3.1 GHz and accept low-voltage positive emitter coupled logic (LVPECL), low-voltage differential signalling (LVDS), current-mode logic (CML), short truncation series termination logic (SSTL), high-speed transceiver logic (HSTL), host clock signal level (HCSL), or single-ended clocks.

One crystal input accepts 10 to 40MHz crystals or single-ended enable clocks

2 groups of 4 differential outputs each

LVPECL, LVDS, HCSL, or High Impedance (Hi-Z) (selectable per bank)

LMK03806 LVPECL additional jitter when clock source is 156.25MHz:

20fs RMS (10kHz - 1MHz)

51fs RMS (12kHz - 20MHz)

High Power Supply Rejection Ratio (PSRR): -65/-76dBc at 156.25MHz (LVPECL/LVDS)

LVCMOS outputs with synchronised enable drive-in

Pin-controlled configuration

VCC core supply: 3.3V ± 5%

3 independent VCCO output supplies: 3.3V/2.5V ± 5%

Industrial temperature range: -40°C to +85°C

40-wire low-profile quad flat leadless (WQFN) package (6mm x 6mm)

Target Applications of LMK00308SQ

- Clock distribution and level shifting for analogue-to-digital converters (ADCs), digital-to-analogue converters (DACs), multi-gigabit Ethernet, XAUI, Fibre Channel, SATA/SAS, SONET/SDH, Common Public Radio Interface (CPRI), high-frequency backplanes

- Switches, Routers, Line Interface Cards, Timing Cards

- Servers, Computing, Fast PCI (PCIe 3.0)

- RF Telepresence Unit and Base Station Unit

• 1.Is the inventory and price seen on the platform accurate?

  A: all online goods on the shelves can be ordered online, but considering the large liquidity of spot inventory, it is not possible to achieve 100% accuracy at present. In case of any abnormality, you can contact our company online and give the corresponding solution.

• 2.Are all our products genuine?

  A: our self-supporting products are from cooperative domestic and foreign original factories or authorized agents, and the source can be traced to ensure the original and authentic products.

• 3.Can you provide the qualification certificate of the original factory or agent?

  A: at present, our self-employed brands TI，ST，ADI，NXP，LATTICE，CYPRESS，INFINEON，XILINX and other first-line brands. Other channels are the original factory and agency channels. If necessary, we can communicate and confirm according to the specific brand and model.

• 4.Can I make an inquiry through the company's website?

  A: You can inquire through the website, or by phone and email.

• 5.When can I deliver the goods after placing an order? How long will it take to get there?

  A: the delivery date is marked in most commodity information. You can estimate the delivery time of the commodity according to the delivery date. The specific arrival time depends on the warehouse where the commodity is located and the logistics mode you choose.

• 6.Can the company issue an invoice?

  A: you can issue ordinary invoices for individual users or special VAT invoices for enterprise users.