XRM2-DAC-D3/275 - IF/Baseband data signal generation



  • IF/Baseband data signal generation

Board Features

  • Dual 14-bit 275Msps DACs
  • External Clock Input
  • Alpha Data XRM2 I/O Module


The XRM2-DAC-D3/275 is an XRM2 I/O Module which provides two 14-bit Digital-to-Analog convertors sampling at up to 275Msps.

Aimed at IF/Baseband signal generation, provision is made for use of either an external or internally generated clock source. External trigger and auxiliary I/O ports are also provided.

Board Format

Alpha Data XRM2 I/O Module

Environmental Specifications

Temperature Limits:

CodeCooling OptionOperating Temp.Storage Temp.
AC0Air Cooled Commercial0°C+55°C-40°C+85°C

Operating Humidity range:

Up to 95% (non-condensing)

EMC Conformity:

FCC 47CFR Part 2
EN55022:2010 Equipment ClassB

For more information on the operating conditions for the different cooling options go to: Alpha Data Environmental Specification Page.

Or read: Alpha Data Environment Specification (PDF).

I/O Interfaces

Interface TypeQtyDescription
ANALOG I/O (Front Panel)
DAC2Dual 14-bit DACs up to 275Msps
Resolution: 14-bit
Max Clock Rate: 275MHz
Impedance: 50Ω
Levels: ±0.5V (+4 dBm) = DAC full scale into 50R load (DC coupled). ±0.4V (+2 dBm) = DAC full scale into 50R load (AC coupled)
Connector: SMA
Offset: -1V to +1V dc, 16-bit resolution for each channel
DISCRETE I/O (Front Panel)
External clock input1External Clock Input
Bandwidth: 5MHz to 275MHz
Impedance: 50Ω AC
Levels: -6dBm to +12dBm (0dBm nominal)
Connector: SMA
External Trigger I/O1Trigger I/O port
Impedance: 4k7Ω (DC coupled)
Levels: +3V3 LVTTL
Connector: SMA
Auxiliary I/O1Auxiliary I/O port
Impedance: 4k7Ω (DC coupled)
Levels: +3V3 LVTTL
Connector: SMA
DISCRETE I/O (PCB Connector)
Synchronisation I/O4Synchronisation I/O
Levels: 1V8 Logic (DC coupled)
Connector: U.FL - Limited Access in assembled system
User configurable as inputs or outputs, signals direct to FPGA pins (Vccfpio).
Note: signals on these connectors must be restricted to 1V8 logic otherwise damage may result.


Example UCF, HDL files and Application software are provided with the board.

Ordering Code
ParametercodeParameter Description
Output Couplingcoupling

blank = DC Coupled (standard),
/AC = AC Coupled

I/O Voltage Optionio

blank = LVTTL I/O levels,
/5V = TTL I/O Levels

Contact sales for other ordering options

Sample Product Code:



  • XRM2-DAC-D3-275 Board
  • One Year Warranty
  • One Year Technical Support

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