CDM-5
  • Skydel CDM-5
  • Skydel CDM-5

Clock Distribution ModulePCIe card providing 10MHz and 1PPS signals for up to five devices

Request a Demonstration
Orolia online store

Some standard CDM-5 configurations are available in the Orolia Online Store (shipping to US addresses only).

 

Orolia’s CDM-5 clock distribution module is a PCIe card that provides 10MHz and 1PPS signals for up to five devices that need tight and precise synchronization. The clock distribution module is ideal for PCIe-based Software-Defined Radios (SDR) installed in rack-mount or desktop PCs, and can also be used for any other applications that require a precise PC-based timing reference.



Key Features

  • Timing and frequency source with 5-way distribution of 10MHz and 1PPS signals
  • PCIe form factor for rack-mount or desktop PC
  • Two operating modes: internal clock (OCXO) or external clock (10MHz and 1PPS)
  • Supports standalone operation with 12V DC power supply
 
cdm-5-tall-320.jpg

Two operating modes

The CDM-5 clock distribution module features two operating modes—internal or external— that are selected with the bracket-mounted switch.

In internal mode, the CDM-5’s internal clock signal is extracted from the onboard high-grade oven-controlled crystal oscillator (OCXO).

When operating in external mode, the CDM-5 accepts input signals in the form of 10MHz and 1PPS, which are then re-distributed via five matched-length traces. Split signals are amplified to maintain the power level across all distributed paths.

Additionally, the CDM-5 will regenerate 1PPS from an external 10MHz-only source if a 1PPS source is not available.

The selection between internal or external mode is achieved through the bracket-mounted switch.

Integrate it in your own design


The CDM-5 clock distribution module can be integrated into a custom assembly simply by removing the bracket plate and powering the board through its 12V DC connector.

When the bracket is removed, the operating mode can be toggled using the onboard switch.

cdm-5-onboard-switch.jpg
CDM-5's onboard switch

A perfect companion to Skydel


CDM-5 is perfectly suited to do multiple SDR synchronization. Paired with DekTec DTA-2115B, it enables a compact and powerful PCIe Skydel GNSS Simulator configuration.

See All Skydel Configurations

Specifications

Input

  • Connector Type: MCX
  • 10MHz input range: 0.5…5 V
  • 1PPS input range: 2.5…5 V

Output

  • Connector Type MCX
  • 10MHz 2.5 V
  • 1PPS 5 V
  • 10MHz output waveform Square wave
  • 1PPS output waveform Logic-level pulse
  • 10MHz duty cycle 50%
  • 1PPS duty cycle 1%
  • Time offset between any two 1PPS outputs < 50 ps

Oscillator Performance

  • Frequency accuracy < 100 ppb
  • Recommended warm-up time 30 min
  • Minimum operational warm-up time 5 min
  • Phase-noise
    • -116dBc@10Hz
    • -137dBc@100Hz
    • -144dBc@1kHz

Power Supply

  • DC Input (PCIe slot or external connector) 12 V
  • Current consumption < 1 A

Physical

  • Dimensions 11.2 x 6.6 x 2.2 in.
  • Temperature range 0…50 ºC

Resources
Title
Datasheets

Skydel CDM-5 Datasheet

Skydel’s CDM-5 clock distribution module is a PCIe card that provides 10MHz and 1PPS signals for up to five devices that need tight and precise synchronization.
pdf - 657 KB—  May 25, 2018 [ Permalink ]

Related Products
  •  
    Skydel GNSS/GPS sofftware simulator
    Skydel Simulation Engine
    Orolia’s Skydel Simulation Engine offers the best of both worlds: the performance you expect from a top-grade GNSS simulator, coupled with the economy of scale and flexibility of the GPU/SDR architecture.
  •  
    GSG-8 GNSS Simulator
    GSG-8 Advanced GNSS Simulator
    Advanced GNSS/GPS simulator supporting multi-constellation, multi-frequency, and hundreds of signals with a 1000 Hz iteration rate.  Ideal for space trajectories, custom PNT signals, hardware-in-the-loop, and more.