2-channel 1000MSPS PMC digitizer


The AD491 is a high performance PMC/XMC digitizer module dedicated to digital signal processing applications with high bandwidth and complex algorithms requirements. In addition to two 1GSPS (1000MSPS) A/D channels, the AD491 offers fast on-board memory resources and two Virtex-4 FPGAs. Up to 4x 2.5Gbps optical tranceivers for serial FPDP or gigabit Ethernet applications are available for communication with external systems (eg, storage system).

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Product Brief (pdf)


Two ADC channels, 30MHz to 1000MHz (1GHz) sampling range
8-bit data resolution
Custom Clock and Trigger inputs via external connectors
On board clock generation in steps of 1MHz

High speed DSP processing in two Xilinx Virtex-4 ® FPGA
XC4VSX55, XC4VLX40, XC4VLX60, XC4VLX80, XC4VLX100 or XC4VLX160
XC4VFX20 or XC4VFX60 with embedded PowerPC RISC processor
FPGA configuration on-board storage
Off-the-shelf IP cores
FPGA firmware design services available upon request

2 x 32M x 16 DDR2 SDRAM (128MB)
4 x 2M x 32 QDR2 SRAM devices (32MB)
128Mbit flash device

PCI interface
PCI-X 64-bit 133MHz, 3.3V
PCI-X/PCI 64/32-bit 66MHz, 3.3V
PCI 64/32-bit 33MHz, 3.3V
PMC Pn4 64 I/O connected to FPGA A

Measured sustained bandwidth
64-bit 133MHz = 760Mbytes/s
64-bit 66MHz = 450Mbytes/s
32-bit 33MHz = 120Mbytes/s

 Front Panel high speed communication
4x 2.5Gbps optical transceivers for sFPDP, Fibre Channel, Gigabit Ethernet and Infiniband applications.

Software Support
FPGA reference design
API, documentation and sample source code
Software utility to program on-board Flash with FPGA configuration data
Device driver for Windows 2000/XP, Linux
Test /demonstration application
Custom FPGA firmware /application /driver development available upon request

Ordering Info

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