TI LMK00301ARHSR

The LMK00301 is a 3GHz, 10-output differential fan-out buffer used 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 output groups, each containing 5 differential outputs and 1 LVCMOS output. The two differential output groups can be independently configured as LVPECL, LVDS, or HCSL drivers, or disabled. The LVCMOS output has a synchronous enable input for glitch-free operation when enabled or disabled. The LMK00301 operates with a 3.3V core power supply and 3 independent 3.3V/2.5V output power supplies. With high performance, high efficiency, and wide versatility, the LMK00301 is an ideal choice to replace fixed-output buffer devices and can also increase the timing margin in the system. The LMK00301A is very similar to the LMK00301, but there is no power supply sequencing requirement between the core and output power supply domains.

• 3:1 input multiplexer
• Two general-purpose inputs operating up to 3.1GHz, supporting LVPECL, LVDS, CML, SSTL, HSTL, HCSL, or single-ended clocks
• Single crystal oscillator input supporting 10 to 40MHz crystal oscillators or single-ended clocks
• Two banks, each with 5 differential outputs
• LVPECL, LVDS, HCSL, or Hi-Z (selectable per bank)
• With LMK03806 clock source at 156.25MHz, LVPECL additive jitter: 20fs RMS (10kHz to 1MHz), 51fs RMS (12kHz to 20MHz)
• High PSRR: -65/-76dBc (LVPECL/LVDS) @156.25MHz
• LVCMOS output with synchronous enable glitchless switching
• Pin-controlled configuration
• VCC core supply: 3.3V±5%
• 3 independent VCCO output supplies: 3.3V/2.5V±5%
• Industrial temperature range: -40°C to +85°C

• 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, 4.0)
• Remote radio units and baseband units