Dual 210MSPS, 14-bit DAC - PMC Front Panel Mezzanine Module
- Dual 14-bit, 210 MSPS Analog Output Channels
- FPGA Firmware blocks supplied in VHDL for integration into user applications
- Windows, VxWorks and Linux host PMC support
The DAC-MOD1 is a front panel mezzanine module designed to provide analog I/O functionality to VMETRO's FPGA-based processing PMC modules. This module provides two channels of 210 MSPS, 14-bit digital to analog conversion. The DAC-MOD1 is aimed at embedded application development.
The DAC-MOD1 is designed to be used with:
| - PMC-FPGA05 | A Virtex-5 LX110 FPGA based PMC |
- PMC-FPGA05 Development Kit
| A Virtex-5 LX110 FPGA based PCI board
|
- PMC-FPGA03
| A Virtex II Pro XC2VP50 FPGA based PMC
|
Analog Outputs
The dual channel 210 MSPS, 14-bit DAC-MOD1 has an onboard low jitter 210 MHz oscillator as well as provision for external clock sources. The sampling clock and trigger are made available to the host FPGA for complete application control. General purpose digital I/O signals are routed through to the front panel. These are also controlled by the host FPGA. These can be used for synchronizing multiple boards or providing alternative trigger mechanisms. Ideal applications include Software Defined Radio (SDR), direct digital synthesis (DDS) and telecommunications.
Software
The DAC-MOD1 is hosted by the PMC-FPGA03, PMC-FPGA05 or PMC-FPGA05 Development Kit which are supported under Windows XP, VxWorks and Linux. The DAC-MOD1 support package is additional to the BSP that accompanies VMETRO PMC modules and includes:
- VHDL library code blocks: demonstrating how board resources can be used and how DAC operations are controlled by the host FPGA
- Hardware and firmware/software manuals
Development of VHDL code for the FPGA requires synthesis tools such as Xilinx Foundation.
| Front Panel Analog Signal Input |
| Number of Channels | 2 (single ended) |
| Connectors | AC coupled, front panel MMCX connector |
| Full Scale Output | 0.5V pk-pk into 50 ohms |
| Output Impedance | 50 ohms |
| D/A Converter |
| Quantity | 1 |
| Type | Analog Devices AD9744 |
| Sampling Rate | 210MSPS |
| Resolution | 14 bits |
| SNR @ 5 MHz output, 125MSPS | 77dB |
| External Clock Input |
| Connector | Front Panel MMCX |
| Input Level | 1V pk-pk, sine or squarewave |
| Input Impedance | 50 Ohms, AC coupled LVPECL |
| Clock Selection | Controlled by FPGA |
| Trigger |
| Single-ended, 50 Ohm, DC coupled |
