SNAS663B March   2017  – July 2019 LMK04616

PRODUCTION DATA.  

  1. 1Features
  2. 2Applications
  3. 3Description
    1.     Simplified Schematic
  4. 4Revision History
  5. 5Device and Documentation Support
    1. 5.1 Device Support
      1. 5.1.1 Development Support
        1. 5.1.1.1 Clock Design Tool
        2. 5.1.1.2 Clock Architect
        3. 5.1.1.3 TICS Pro
    2. 5.2 Receiving Notification of Documentation Updates
    3. 5.3 Community Resources
    4. 5.4 Trademarks
    5. 5.5 Electrostatic Discharge Caution
    6. 5.6 Glossary
  6. 6Mechanical, Packaging, and Orderable Information

Features

  • Dual-loop PLL architecture
  • Ultra low noise (10 kHz to 20 MHz):
    • 48-fs RMS jitter at 1966.08 MHz
    • 50-fs RMS jitter at 983.04 MHz
    • 61-fs RMS jitter at 122.88 MHz
  • –165-dBc/Hz noise floor at 122.88 MHz
  • JESD204B support
    • Single shot, pulsed, and continuous SYSREF
  • 16 differential output clocks in 8 frequency groups
    • Programmable output swing between 700 mVpp to 1600 mVpp
    • Each output pair can be configured to SYSREF clock output
    • 16-bit channel divider
    • Minimum SYSREF frequency of 25 kHz
    • Maximum output frequency of 2 GHz
    • Precision digital delay, dynamically adjustable
      • Digital delay (DDLY) of ½ × clock distribution path frequency (2 GHz maximum)
    • 60-ps step analog delay
    • 50% duty cycle output divides, 1 to 65535
      (even and odd)
  • Four reference inputs
    • Holdover mode, when inputs are lost
    • Automatic and manual switch-over modes
    • Loss-of-signal (LOS) detection
  • 1.05-W typical power consumption with 16 outputs active
  • Operates typically from a 1.8-V (outputs, inputs) and 3.3-V supply (digital, PLL1, PLL2_OSC, PLL2 core)
  • Fully integrated programmable loop filter
  • PLL2
    • PLL2 phase detector rate up to 250 MHz
    • OSCin frequency-doubler
    • Integrated low-noise VCO
  • Internal power conditioning: better than –80 dBc PSRR on VDDO for 122.88-MHz differential outputs
  • 3- or 4-wire SPI interface (4-wire is default)
  • –40ºC to +85ºC industrial ambient temperature
  • Supports 105ºC PCB temperature (measured at thermal pad)
  • LMK04616: 10-mm × 10-mm NFBGA-144 package with 0.8-mm pitch