4DSPAD450PMC数字化处理方案

4DSP公司的AD450是双路125MSPS数字化和波形发生器PMC/XMC,具有取样速率高达125MSPS的双路14位ADC输入通路,以及集成了2x, 4x, 8x 和16x内插滤波器的双路16位高速DAC,非常适合用于MIMO天线发送系统,无线通信接收器,测试测量仪器,马达控制,航空测量仪器,视频和图像算法(DVB-C)以及低功耗医疗MRI设备.AD450还提供了快速存储资源和两块XILINX VIRTEX-4 FPGA.本文介绍了AD450的主要特性,以及PMC扩展板的方框图.

AD450 Dual channel 125MSPS digitizer and waveform generator PMC/XMC

The AD450 is a PMC expansion card designed for MIMO and WIRELESS processing systems.

The AD450 features two 14-bit A/D channel inputs sampling up to 125MSPS, and a dual-channel 16-bit high-speed D/A CONVERTER with INTEGRATED 2x, 4x, 8x and 16x interpolation filters.

The AD450 is the ideal prototyping system to implement flexible and scalable multi-input and multi-output antenna transmitter systems. For instance, it is possible to design a MIMO-based OFDM testbed to simulate or emultate multiple MOBILE radio communication channels.

The AD450 is a high performance PMC/XMC digitizer MODULE and waveform generator dedicated to DIGITAL signal processing applications with high bandwidth and MIMO requirements. The AD450 also 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).

主要特性:

A/D and D/A

Two 14-bit ADC channels, 20MHz to 125MHZ.html" target="_blank" title="125MHZ">125MHZ sampling range

Two 16-bit DAC channels, 20MHz to 160MHz sampling range

CUSTOM Clock and Trigger inputs via external connectors

On board clock generation in steps of 0.5MHz

Ideal for Multiple Inputs Multiple Outputs in a small form factor

FPGA

High speed DSP processing in two Xilinx Virtex-4 ? FPGA

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FPGA configuration on-board storage

Off-the-shelf IP cores

FPGA firmware design services available upon request

Memory

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.html" target="_blank" title="133MHZ">133MHZ, 3.3V

PCI-X/PCI 64/32-bit 66MHz, 3.3V

PCI 64/32-bit 33MHz, 3.3V

PCI express 4 lanes

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. Useful for connecting to a REMOTE SERVER or a storage system such as Conduant Streamstor Amazon.

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 and VxWorks

Test /demonstration application

Custom FPGA firmware /application /driver development available upon request

应用:

_MIMO baseband transceivers

_Wireless communication receivers

_Test and measurement INSTRUMENTS

_Holographic data storage equipments

_Motor CONTROL applications

_Aerospace measurement instruments

_Video and imaging algorithms (DVB-C...)

_Low-power medical MRI equipments