Analog Devices Inc. AD9525 Low Jitter Clock Generator

Analog Devices Inc. AD9525 Low Jitter Clock Generator features excellent jitter performance and fast output speed, designed to support converter clock requirements for long-term evolution (LTE) and multicarrier GSM base station designs. ADI AD9525 provides a low power, multi-output, clock distribution function with low jitter performance, along with an on-chip PLL that can be used with an external VCO or VCXO. 

The VCO input and eight LVPECL outputs can operate up to a frequency of 3.6GHz. All outputs share a common divider that can provide a division of 1 to 6. ADI AD9525 offers a dedicated output that can be used to provide a programmable signal for resetting or synchronizing a data converter. The output signal is activated by a SPI write. This low jitter clock generator operates over the extended industrial temperature range of -40°C to +85°C.


  • Integrated ultra low noise synthesizer
  • 8 differential 3.6GHz LVPECL outputs and 1 LVPECL or 2 CMOS SYNC Outputs
  • 2 differential reference inputs and 1 single-ended reference inputs


  • LTE and multicarrier GSM base stations
  • Clocking high speed ADCs, DACs
  • ATE and high performance instrumentation
  • 40/100Gb/sec OTN line side clocking
  • Cable/DOCSIS CMTS clocking
  • Test and measurement

Block Diagram

Analog Devices Inc. AD9525 Low Jitter Clock Generator
Published: 2013-04-29 | Updated: 2022-03-11