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Texas Instruments LMK1D1208IRHAR — Clock & Timing ICs

LMK1D1208IRHAR Clock Buffer – 2:8 LVDS, 2 GHz

MPNLMK1D1208IRHAR
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Texas Instruments LMK1D1208IRHAR, Clock Buffer, 2:8 fanout, LVDS output, 2 GHz max frequency, 40-VFQFN exposed pad, -40°C to 105°C

$13.5500Ref. price · indicative, final on quote
Texas Instruments LMK1D1208IRHAR datasheet (PDF)
Packaging40-VFQFN Exposed Pad
RoHSROHS3 Compliant
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

LMK1D1208IRHAR specifications
ParameterValue
TypeClock Buffer
MountingSurface Mount
Supply voltage1.71V ~ 1.89V, 2.375V ~ 2.625V, 3.135V ~ 3.465V
Frequency - max2 GHz
Operating temperature-40°C ~ 105°C (TA)
InputCML, HCSL, LVCMOS, LVDS, LVPECL
OutputLVDS
PackageTape & Reel (TR) Cut Tape (CT)
Case40-VFQFN Exposed Pad
Number of circuits1
Ratio - Input:Output2:8
Differential - Input:OutputYes/Yes

Product details

2:8 LVDS fanout at 2 GHz

The LMK1D1208IRHAR is a 2:8 clock buffer from Texas Instruments that distributes one of two selectable input clocks to eight LVDS outputs, with a maximum frequency of 2 GHz. The input stage accepts CML, HCSL, LVCMOS, LVDS, or LVPECL, so this single part can bridge between a PLL output and a downstream FPGA or SerDes without a translator. The output is fixed LVDS, which is the de facto standard for differential clock distribution on most mid-to-high-speed boards.

Industrial temperature and package

Sourced per RFQ against your BOM quantity.

Frequently asked questions

Will the LMK1D1208IRHAR drop into a board designed for the CDCLVP1204RGTR?

No — the CDCLVP1204RGTR is a 2:4 fanout buffer with LVPECL outputs in a different package (RGT). The LMK1D1208IRHAR has a 2:8 fanout, LVDS outputs, and a 40-VQFN footprint. They are not pin-to-pin compatible; a board re-spin would be required.