Alternative Parts


Features and Benefits

  • 3.3 V Only, Single Supply Rail Operation
  • Output Frequency Range: 25 MHz - 2500 MHz
  • Integer or Fractional-N mode Frequency Translation
  • Configurable LVDS-compatible or LVPECL type Differential Outputs
  • “Power Priority” and “Performance Priority” modes
  • <97 fs RMS Jitter Generation (12 kHz-20 MHz, 2500MHz, Typ)
  • -163 dBc/Hz Phase Noise Floor to Improve ADC/DAC SNR (maximum output swing levels)
  • Adjustable PLL Loop BW via External Filter
  • Output Disable/Mute Control
  • Lock Detect Signal
  • Exact Frequency Mode to achieve reference frequency tuning, and 0 Hz frequency error
  • 40 Lead 6×6mm SMT Package: 36mm2

Product Details

The HMC1035LP6GE is a low-noise, wide-band 3.3 V clock generator IC with a fractional-N Phase Locked Loop (PLL) that features an integrated Voltage Controlled Oscillator (VCO). The device provides differential clock outputs between 25 MHz and 2500 MHz range. The HMC1035LP6GE features a low noise Phase Detector (PD) and Delta-Sigma modulator, capable of operating at up to 100 MHz which permits wider loop-bandwidths and excellent spurious performance.

The HMC1035LP6GE features industry leading phase noise and jitter performance, across the operating range, that enable it to improve link level jitter performance, Bit-Error-Rates (BER) and eye diagram metrics. The superior noise floor (<-162 dBc/Hz) makes the HMC1035LP6GE an ideal source for a variety of applications–such as clock references for high speed data converters, physical layer devices (PHY), serializer/deserializer (SER DES) circuits, FPGAs and processors. The HMC1035LP6GE can also be used as an LO for 10G/40G/100G optical modules and transponders, as well as primary reference clock for 10G/40G/100G line cards, and for jitter attenuation and frequency translation.

The differential output of the HMC1035LP6GE can be set to either External Termination, which could be used for LVPECL operation, or Internal Termination for operation in an LVDS compatible mode or LVPECL. Additionally, an ouput swing adjustment makes the device flexible and compatible with a wide variety of signal level requirements. The output can be internally terminated to reduce component count and cost or could be terminated externally using standard LVPECL termination methods. An Output Mute function allows the user to shut off the outputs, such as may be required for board testing or debugging. The LVPECL/LVDS, amplitude select and Output Mute function are all programmed SPI serial programming.

The HMC1035LP6GE is designed to select between a Power Priority or a Performance Priority mode. The Power Priority setting reduces the current consumption of the part, whereas the Performance Priority setting improves the Jitter and Phase Noise performance.

The 24 bit Delta-Sigma Modulator further enhances Hittite’s Exact Frequency Mode, which enables users to generate output frequencies with 0 Hz frequency error in many applications.


  • 10G/40G/100G Optical Modules, Transponders, Line Cards
  • OTN and SONET /SDH Applications
  • Data Converters, Sample Clock Generation
  • Cellular/4G Infrastructure
  • High Frequency Processor/FPGA Clocks
  • Any Frequency Clock Rate Generation
  • Low Jitter SAW Oscillator Replacement
  • DDS Replacement
  • Frequency Translation
  • Frequency Margining

Product Lifecycle icon-not-recommended Last Time Buy

All products in this family will be obsolete soon. Please contact ADI Sales or Distributors to arrange for final purchases and read our Obsolescence Information to review the time periods for placing final orders and receiving final shipments.

Product Recommendations

HMC1035 Companion Parts

Recommended Reference Buffer

Recommended Reference Clean Up PLL

Design Resources

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well.  "Zero defects" for shipped products is always our goal.

PCN-PDN Information

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Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.