TI LMK00334RTVR

The LMK00334 is a 4-output HCSL fan-out buffer designed for high-frequency, low-jitter clock/data distribution and level conversion. It can select the input clock from two general-purpose inputs or one crystal oscillator input. The selected input clock is distributed to two groups of HCSL outputs (2 per group) and one LVCMOS output. The LVCMOS output has a synchronous enable input, enabling glitch-free operation after being enabled or disabled. The LMK00334 is powered by a 3.3V core power supply and three independent 3.3V/2.5V output power supplies. The LMK00334 features high performance, versatility, and power efficiency, making it an ideal choice to replace fixed-output buffer devices while increasing the timing margin in the system.

• 3:1 input multiplexer
• Two general-purpose inputs operating up to 400 MHz, accepting LVPECL, LVDS, CML, SSTL, HSTL, HCSL, or single-ended clock signal levels
• One crystal input accepting 10 MHz to 40 MHz crystal or single-ended clock
• Two differential output banks, 2 outputs per bank
• HCSL or Hi-Z (selectable)
• PCIe Gen3 additive phase jitter (RMS) at 100 MHz: 30 fs RMS (typical)
• High PSRR: −72 dBc at 156.25 MHz
• Pin-configurable LVCMOS outputs with synchronous enable glitchless switching

• Clock distribution and level translation for ADC, DAC, multi-gigabit Ethernet, XAUI, Fibre Channel, SATA/SAS, SONET/SDH, CPRI, and high-frequency backplanes
• Switches, routers, line interface cards, timing cards
• Servers, computing, PCI Express (PCIe 3.0)
• Remote radio units and base station units