PAS 9782/GEN : 8 Channel VME Sine / Pulse Waveform Generator with PGA Amplitude Control
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The PAS 9782/GEN is a VME based, eight channel function generator card.
Each channel contains a Direct Digital Synthesis (DDS) chip that can be
programmed to generate sine wave output signals. This DDS device is a
Numerically Controlled Oscillator (NCO), employing a phase accumulator, a sine
look-up table and a 10 bit D/A converter. The input clock frequency to the DDS
chips is 2 MHz. This input frequency combined with the chips thirty-two bit phase
accumulator provides a frequency resolution of 0.000465 Hz. The maximum
useable output frequency is approximately 40 KHz.
A programmable gain amplifier is provided on each channel, following the NCO.
This allows the card to be programmed for full-scale output ranges from +/-1 volt
to +/-10 volts. In addition to the sine wave output a TTL output and open drain
FET output are provided on each channel.
This card can be used in VME systems with A16, A24, or A32 addressing, and
data bus widths of 16 and 32 bits are supported. DIP switches are used to
configure the width of the address bus. VME instruction types determine the
width of the data bus. The input signals are connected to a pair of DB37 female
connectors mounted through the front panel. A board identifier PROM, control
register and DDS frequency control registers are provided as well.
Card Features: PAS 9782/GEN
8 channel Direct Digital Synthesis (DDS) Waveform Generator
Each channel provides sine wave, TTL square wave and open drain FET
Programmable Gain Amplifier per channel provides sine wave output of
+/-10V, +/-5V, +/-2V or +/-1 volt peak to peak
Output frequency is controlled by a 32 bit frequency register; each channel
provides an independent frequency register
Output frequency is set by the following equation: F(out) = F register value x
2 MHz divided by 2^32
Each channel is controlled by two independent 12 bit phase offset registers
All channels are clocked by a common 2 MHz crystal controlled oscillator
Sine wave output amplifiers provide a low pass filter with a 3dB corner
frequency of 30 KHz
VME 6U form factor, 233mm x 160mm card size
VME access: A32, A24, A16; D16 slave – No VME interrupts
Board provides ID code (VMEIDPAS9782GENA), control and status register
and two status LEDs
Operating temperature range 0 to 60 degrees Celsius
See product manual
Contact us for current pricing.