LMK00308 Datasheet – Differential Clock Buffer

Part Number: LMK00308

Function: 3-GHz 8-Output Differential Clock Buffer/Level Translator

Pacakge : 40-lead WQFN (6 mm x 6 mm)

Manufacturer: Texas Instruments


LMK00308 datasheet



The LMK00308 is a 3-GHz, 8-output differential fanout buffer intended for high-frequency, low-jitter clock/data distribution and level translation. The input clock can be selected from two universal inputs or one crystal input.

The selected input clock is distributed to two banks of 4 differential outputs and one LVCMOS output. Both differential output banks can be independently configured as LVPECL, LVDS, or HCSL drivers, or disabled. The LVCMOS output has a synchronous enable input for runt-pulse-free operation when enabled or disabled. The LMK00308 operates from a 3.3 V core supply and 3 independent 3.3 V/2.5 V output supplies.


1. High PSRR: -65 / -76 dBc (LVPECL/LVDS) at 156.25 MHz

2. LVCMOS Output with Synchronous Enable Input

3. Pin-Controlled Configuration

4. VCC Core Supply: 3.3 V ± 5%

5. 3 Independent VCCO Output Supplies: 3.3 V/2.5 V ± 5%



LMK00308 Datasheet PDF Download

LMK00308 pdf

Other data sheets are available within the file:

K00308, LMK00308SQ, LMK00308SQ/NOPB, LMK00308SQE