VM8DAC Datasheet, PDF (1/2 Pages) Frequency Devices, Inc. – Low Noise Digital to Analog Converter

Model VM8DAC
8 Channel VME Module
VM8DAC VMEbus digital to analog converter
(DAC) boards from Frequency Devices Inc. offer
eight channels of precision low distortion/low
noise, digital to analog converters that operate
with a sample clock frequency derived from a
master external clock and a programmable time
base divider. The boards are available in a single
width B-size (6U) VME form factor that conforms
to VMEbus Revision C.1 as an A32/D32 Data
Transfer Bus Slave.
VM8DAC boards provide high (24-bit) and low
(16-bit) resolution data access to on-board
DAC’s. The boards interpret the received parallel
data from the VMEbus as binary-2’s complement.
This data is serialized and transferred to any
selected DAC channel at a fixed master time
base where it is converted to analog signals at a
software programmable sampling rate. The DAC
channels may be configured to 16,384, 8,192,
4,096, or 2,048 samples per second.
Features/Benefits
• Eight discrete channels with programmable
sampling that provide a 24- bit DAC stage for
each channel offers the user versatile and
convenient digital to analog conversion.
• Outputs synchronized to the front panel
external clock allow for multi-card
synchronicity.
• Designed for Real Time Operating Systems
(RTOS) to provide minimal pipeline delay
(less than 5 microseconds). i.e. Linux or Vx
Works.
• Interrupt free operation provides glitch energy
of <5nV-sec and extremely low noise density
(ï100nV/ Hz ).
• VME backplane is galvanically isolated from
the analog section to reduce system
integration problems.
Low Noise
Digital to Analog Converter
VM8DAC Ordering Guide
To order, simply specify the part number below.
VM8DAC-8
1
25 Locust St., Haverhill, Massachusetts 01830 • Tel: [phone] • FAX:[phone]
e-mail: [e-mail] • Web Address: http://www.freqdev.com