eRTM Local Oscillator Generation

The DRTM-LOG1300 is a multi-channel local oscillator generator and high frequency signal and clock fan-out module. The module provides the fan-out for 9 high frequency reference, 9 local oscillator and 9 calibration signals in the range from 400MHz to 6GHz. In addition, the module provides 22 configurable low jitter differential clock signals in the range up to 160MHz for high-precision ADC sampling applications.
The local oscillator and the clock signals are generated from an external RF reference. The residual phase noise of the local oscillator at 1354 MHz is below 6 fs (rms) [10 Hz, 10 MHz]. The rejection of the upper and lower sidebands is higher than 80 dBc. Long-term instabilities of the RF signals are mitigated by on-board temperature regulation.
Each high frequency and clock signal can be switched on/off individually via RF backplane communication depending on the crate configuration. Board health-status can be monitored via front-panel RJ-45 connector (Ethernet based comm.) or over LVDS lines in the MTCA.4 system. In addition the module can operate as a stand alone unit. If long term stability is critical, the DRTM-LOG1300 offers an optionally on-board temperature regulation via Peltier elements.

Main Features
  • Two double width, full-height, MicroTCA.4 compliant extended Rear-Transition Module (eRTM).
  • Provides signal fan-out of 9 high frequency reference, 9 local oscillator and 9 calibration signals in the range from 400MHz to 6GHz (variant optimized for 1.3 GHz).
  • Provides 22 low jitter differential clock signals up to 160 MSPS for ADC sampling.
  • Local oscillator residual phase noise < 6fs (rms) [10 Hz, 1MHz] at 1.354 GHz.
  • Each output clock and RF signal can be switched on/off individually for a specific crate configuration.
  • No program is needed for basic board functionality.
  • Easy internal frequency adaption.
  • RoHS compliant
  • Options:
    • On-board temperature regulation
    • External front panel signal fed
DRTM-LOG1300
Licensing

DESY offers the DRTM-LOG1300 for licensing to industry. DESY can modify this product to meet special customer requirements.

Datasheet

Location: /afs/desy.de/group/msk/www/html/TechLab/eRTM-LOG1300