LMK00804BQWRGTRQ1

The LMK00804BQWRGTRQ1 from Texas Instruments is a high-performance clock fan-out buffer and level translator designed for precise clock distribution. This device can distribute up to four LVCMOS/LVTTL outputs, supporting voltage levels from 1.5-V to 3.3-V, from one of two selectable inputs. These inputs are versatile, accepting differential or single-ended signals including LVPECL, LVDS, HCSL, SSTL, LVHSTL, or LVCMOS/LVTTL.

Key electrical characteristics include a maximum output frequency of 350 MHz, a maximum output skew of 35 ps, and a part-to-part skew of 550 ps. The typical additive RMS jitter is 0.1-ps at 40 MHz, with a noise floor of -168 dBc/Hz at 40 MHz. The core supply voltage is typically 3.3 V, with output supply voltages configurable to 1.5 V, 1.8 V, 2.5 V, or 3.3 V.

The LMK00804BQWRGTRQ1 features a synchronous clock enable input that internally synchronizes to prevent runt or glitch pulses on the outputs. When the clock is disabled, the outputs are held in a logic low state. This buffer is AEC-Q100 qualified and operates within a temperature range of -40°C to 125°C.

Packaged in a 16-pin VQFN (3 mm x 3 mm) with wettable flank surface mount technology, this component is suitable for applications requiring reliable, low-jitter clock distribution across multiple transceivers, such as in mmWave radar systems.