VME, VME ADC

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VME ADC CARD

Description

VME ADC card is a VME based six analog channel high speed data acquisition card. All the six channels are sampled simultaneously at a maximum sampling rate of 60 MHz through individual 14 bit resolution ADCs. The digitized data is processed through three FPGAs for DC offset correction & to down sample. The sampling of signals can be synchronized with the external signal. Additionally ADSP21060 floating point DSP operating at 40 MHz is provided. The sampled data can be read out through link ports of DSP or through link ports emulated in FPGAs for maximum data bandwidth. VME32 slave interface is provided with A32:D32 normal & block transfer and interrupt. The board is ruggedized for MIL standards.

Specifications

Number of Channels	: Six, through six SMA connectors
Input Voltage	: 2.2 Vpp
Sampling Frequency	: 60 MHz
Down Sampling Frequency	: 10 & 5 MHz
DC offset	: Correction for inputs
ENOB specification	: 12 bit
Data transfer	: Either through VME, DSP link ports or FPGA link port.
Data format	: Two adjacent channels clubbed and stored in the FIFO

DSP	: ADSP21060
Operating Frequency	: 40 MHz
DSP JTAG port	: On front panel
Booting options	: FPROM and link port (jumper selectable)
FIFO	: Three 16K x 36.
SRAM	: 64K x 32
EPROM	: 512K x 8 for booting
UART	: Industry standard 16C550
Link port termination	: Onto 120 pin high density connector on facia panel
FIFO depth interrupt	: Programmable
Front Panel LED indication	: Two LEDs, DSP flags indication

VME32 slave standard	: Support for A32, D32.
Interface	: Access to FIFOs, SRAM & DSP
Interrupt	: Configurable
Interrupt sources	: FIFO full, half full, programmable empty and DSP flag

Board size	: Double EURO (160 mm X 233.35 mm)
Operating Temperature	: - 20 to +55 C
Storage Temperature	: - 20 to +70 C

Applications

Radar Signal processing and acquisition.
High speed data acquisition.