AD9554

RECOMMENDED FOR NEW DESIGNS

Quad PLL, Quad Input, 8-output Multiservice Line Card Adaptive Clock Translator

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Part Details

  • Supports GR-1244 Stratum 3 stability in holdover mode
  • Supports smooth reference switchover with virtually no disturbance on output phase
  • Supports Telcordia GR-253 jitter generation, transfer, and tolerance for SONET/SDH up to OC-192 systems
  • Supports ITU-T G.8262 synchronous Ethernet slave clocks
  • Supports ITU-T G.823, ITU-T G.824, ITU-T G.825, and ITU-T G.8261 
  • Auto/manual holdover and reference switchover
  • Adaptive clocking allows dynamic adjustment of feedback dividers for use in OTN mapping/demapping applications 
  • Quad digital phase-locked loop (DPLL) architecture with four reference inputs (single-ended or differential)
  • 4 × 4 crosspoint allows any reference input to drive any PLL
  • Input reference frequencies from 2 kHz to 1000 MHz Reference validation and frequency monitoring: 2 ppm
  • Programmable input reference switchover priority 20-bit programmable input reference divider
  • 8 differential clock outputs with each differential pair configurable as HCSL, LVDS-compatible, or LVPECL-compatible
  • Output frequency range: 430 kHz to 941 MHz
  • Programmable 18-bit integer and 24-bit fractional feedback divider in digital PLL
  • Programmable loop bandwidths from 0.1 Hz to 4 kHz 
  • Optional off-chip EEPROM to store power-up profile
  • 72-lead (10 mm × 10 mm) LFCSP package
AD9554
Quad PLL, Quad Input, 8-output Multiservice Line Card Adaptive Clock Translator
AD9554 Functional Block Diagram AD9554 Pin Configuration
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Evaluation Kits

EVAL-AD9554

AD9554 Evaluation Board

Product Details

Features
  • Simple Power Connection using 6V Wall Adapter and On-board Switching and LDO Voltage Regulators
  • On board LDO regulators can be easily bypassed to permit user to evaluate performance using the on-board switching regulator
  • Regulators Are Easily Bypassed for Power Measurements
  • Twelve AC-Coupled SMA Connectors for Outputs (Four differential, Four single-ended)
  • SMA Connectors for
    • Two Differential or Four Single-ended Reference Inputs
    • System Clock Input
  • On-board Provisions for TCXO, Crystal Oscillator or Crystal
  • USB Connection to PC 32- or 64-Bit Microsoft Windows® based Evaluation Software with Simple Graphical User Interface
  • On-board PLL Loop Filter
  • Easy Access to Digital I/O and Diagnostic Signals via I/O Header
  • Status LEDs for Diagnostic Signals

EVAL-AD9554
AD9554 Evaluation Board

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