DAQ system PCIe-AIO14, Руководство пользователя

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PCIe-AIO14 User Manual (Rev 1.2)
- 1 -
http://www.daqsystem.com
1. Introduction
The PCIe-AIO14 board is a PCI Express interface board with dedicated analog inputs.
The 16-channel analog signal is multiplexed by port control, and the signal is variably sampled
and converted by two ADCs.
1.1 Function
-
PCI Express x1
-
32-Channel 16-Bit ADC

2 low power SAR ADC

16-channel analog signal multiplex input for each ADC

±
10V Differential Signal input Level

10~2Msps Variable Sampling Setup
-
32-Ch Software Trigger
-
24-Bit Digital Input Output

Input / output shielding by photo coupler

24-Bit Digital Input

24-Bit Digital Output
1.2 Block Diagram
PCI Master
PCI Express
BUS
Local Bus
Address
Data(Mem,I/O)
SAR ADC
External
Interface
IO Decoder
PCIe-AIO14 INTERNAL BLOCK
MEM Decoder
BUS Mux
16-Ch Differential
Multiplexer
16-Ch Differential
Multiplexer
Digital IN/OUT
Isolator
AIN_A
AIN_B
DMA Engine
SAR ADC
[Fig 1-1. Internal block diagram]