DESCRIPTION

· The LMK61E2 is an ultra-low jitter PLLatinum™ programmable oscillator with a fractional-N frequency synthesizer and integrated VCO.

· It generates commonly used reference clocks with configurable outputs as LVPECL, LVDS, or HCSL.

· Features self start-up from on-chip EEPROM, factory programmed for 156.25-MHz LVPECL output.

· Fully programmable device registers and EEPROM settings via I2C serial interface.

· Operates from a single 3.3-V ±5% supply with excellent power supply ripple rejection (PSRR).

FEATURES

· Ultra-Low Noise, High Performance: Jitter: 90fs RMS Typical fOUT>100MHz, PSRR: -70dBc.

· Flexible Output Format: LVPECL up to 1GHz, LVDS up to 900MHz, HCSL up to 400MHz.

· Total Frequency Tolerance of ±50ppm.

· System Level Features: Frequency Margining: Fine and Coarse, Internal EEPROM: User Configurable Default Settings.

· Device Control: I2C, 3.3-V Operating Voltage, Industrial Temperature Range (-40ºC to +85ºC).

· 7-mm × 5-mm 8-Pin Package.

APPLICATIONS

· High-Performance Replacement for Crystal-, SAW-, or Silicon-Based Oscillators.

· Switches, Routers, Network Line Cards, Base Band Units (BBU), Servers, Storage/SAN.

· Test and Measurement, Medical Imaging.

· FPGA, Processor Attach.