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Texas Instruments LMK1D2102RGTT — Clock & Timing ICs

Texas Instruments LMK1D2102RGTT Clock Buffer, 2 GHz

MPNLMK1D2102RGTT
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Texas Instruments LMK1D2102RGTT clock buffer, 2 GHz max frequency, 1:2 fanout, LVDS output, 16-VQFN (3x3 mm), -40 to +105°C.

$7.2320Ref. price · indicative, final on quote
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

LMK1D2102RGTT 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
OutputClock, LVDS
PackageTape & Reel (TR)
Case16-VFQFN Exposed Pad
Number of circuits2
Ratio - Input:Output1:2
Differential - Input:OutputYes/Yes

Product details

2 GHz fanout buffer with flexible input mux

The LMK1D2102RGTT is a 1:2 clock buffer from Texas Instruments that accepts CML, HCSL, LVCMOS, LVDS, or LVPECL inputs and delivers a differential LVDS clock output at frequencies up to 2 GHz. The 2 GHz ceiling means this buffer can distribute high-speed reference clocks for SERDES, FPGA transceivers, or data-converter sampling clocks without adding jitter from a separate level translator.

Supply rails and temperature grade

The -40°C to +105°C operating range covers industrial equipment and base-station environments where the ambient temperature inside the enclosure can climb well above 85°C.

The 1:2 fanout with differential input and output means the part can replace a discrete resistor-splitter network when driving two downstream loads from one source, preserving signal integrity at multi-gigahertz frequencies.

Lifecycle and compliance

RoHS compliance is standard for TI's VQFN packages in this family.

Frequently asked questions

What input signal types does the LMK1D2102RGTT accept?

The input mux accepts CML, HCSL, LVCMOS, LVDS, and LVPECL levels, making it compatible with most high-speed clock sources without external level-shifting resistors.

What is the maximum output frequency of this clock buffer?

The LMK1D2102RGTT supports clock outputs up to 2 GHz, suitable for distributing reference clocks to SERDES, FPGA transceivers, and high-speed ADC/DAC devices.