LMK00334RTVRQ1

The LMK00334-Q1 from Texas Instruments is a 4-output HCSL fanout buffer designed for high-frequency, low-jitter clock distribution and level translation. It is specifically intended for PCIe Gen1 through Gen5 applications.

This device features four outputs and supports various input types including CML, HCSL, HSTL, LVCMOS, LVDS, LVPECL, SSTL, and XTAL. The core supply voltage is 3.3V, with independent output supply voltages available at 3.3V and 2.5V. It offers an additive RMS jitter of 30 fs (typical) for PCIe Gen3/Gen4 at 100 MHz and a high PSRR of -72 dBc at 156.25 MHz.

The LMK00334-Q1 operates within an industrial temperature range of -40°C to 105°C. It is housed in a 32-pin WQFN package measuring 5 mm x 5 mm, with an exposed pad for enhanced thermal performance. The device is AEC-Q100 qualified for automotive applications, indicating its suitability for demanding environments.

Key features include a 3:1 input multiplexer, two universal inputs supporting up to 400 MHz, and one crystal input for 10- to 40-MHz crystals. The outputs are available in HCSL or Hi-Z selectable modes. This buffer is ideal for clock distribution networks requiring low jitter and precise signal integrity.