Omega Speaker Systems PCI-DAS1001 User Manual download pdf (Page 36)

8.2 ANALOG OUTPUT

D/A type AD7847AR

Resolution 12 bits

Number of channels 2

Output Ranges ±10V, ±5V, 0-5V, 0-10V. Each channel independently programmable.

D/A pacing Software

Data transfer Programmed I/O.

Offset error ±600µV max, all ranges (calibrated)

Gain error ±0.02% FSR max (calibrated)

Differential nonlinearity ±1LSB max

Integral nonlinearity ±1LSB max

Monotonicity 12 bits

D/A Gain drift ±2 ppm/°C max

D/A Bipolar offset drift ±5 ppm/°C max

D/A Unipolar offset drift ±5 ppm/°C max

Throughput PC dependent

Settling time (to .01% of 10V step) 4µs typ

Slew Rate 7V/µS

Current Drive ±5 mA min

Output short-circuit duration 25 mA indefinite

Output Coupling DC

Amp Output Impedance 0.1 Ohms max

Miscellaneous Power up and reset, all DAC's cleared to 0 volts, ±200mV

8.3 PARAELLEL DIGITAL INPUT/OUTPUT

Digital Type 82C55A

Configuration 2 banks of 8, 2 banks of 4, programmable by bank as input or output

Number of channels 24 I/O

Output High 3.0 volts @ -2.5mA min

Output Low 0.4volts @ 2.5 mA max

Input High 2.0 volts min, Vcc+0.5 volts absolute max

Input Low 0.8 volts max, GND-0.5 volts absolute min

Power-up / reset state Input mode (high impedance)

Interrupts INTA# - mapped to IRQn via PCI BIOS at boot-time

Interrupt enable Programmable

Interrupt sources Residual counter, End-of-channel-scan, AD-FIFO-not-empty,

AD-FIFO-half-full

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Omega Speaker Systems PCI-DAS1001 User Manual Page 36