RTM 2 Channel Vector Modulator

The DRTM-VM2HF is a two channel high frequency vector modulator RTM module compliant to the MTCA.4 specification. The unit operates at input center frequencies of 1.5 to 6 GHz. It offers an excellent phase short-term stability of < 60 fs (RMS) in the range of 10 Hz to 10 MHz.
The DRTM-VM2HF allows vector modulation of the carrier signal with 16-bit resolution in two independent channels. Modulation signal bandwidth ranges up to 50 MHz. Output signal power can be adjusted with software programmable attenuators for accurate full-scale operation. The unit supports external reference and clock input signals from the front panel and from the RF-backplane. The module offers integrated input and output power level monitors.
Data is provided using low latency Multi Gigabit Transceivers (MGTs) or parallel LVDS interface via Zone 3 connector. An additional debug connector is available on the front panel.

Main Features
  • Double width per MicroTCA.4, Rear-Transition Module (RTM), Class D1.2 compatible
  • 2 channel high-frequency vector modulation at 1.5 - 6 GHz
  • Non linearity error < -55 dBc (0.2%)
  • Short-term PM stability < 60 fs (RMS) [10 Hz,10 MHz]
  • Modulation bandwidth DC – 50 MHz
  • Calibration capability
  • 16 bit resolution on each I and Q channel
  • Programmable attenuators
  • Reference and clock from front panel or RF-backplane
  • On-board input and output power level monitoring
  • High-speed low-latency connection to AMC module and SFP+ cage (10 GBPS)
  • Module management and diagnostics
  • RoHS compliant
  • Options: RF-backplane support

DESY offers the DRTM-VM2HF for licensing to industry. DESY can modify this product to meet special customer requirements.


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