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參數(shù)資料
| 型號(hào)： | PC-414WINS |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | Last Time Buy Notice ? Board Products |
| 中文描述： | 最后一次購買的通知？板產(chǎn)品 |
| 文件頁數(shù)： | 3/14頁 |
| 文件大?。?/td> | 197K |
| 代理商： | PC-414WINS |
FEATURES
Up to 10 MHz A/D sample rate
Very low harmonic distortion
Analog input comparator trigger
Choice of 12, 14, or 16-bit A/D resolution
Optional 2 to 8-channel simultaneous sampling
On-board FIFO memory up to 16,384 samples
Ideal for FFT’s, DSP, or array processor “front ends”
Non-bus burst parallel port for seamless recording
Offering very high system speed, the PC-414 is a multi-channel
analog input board for ISA compatible computers. Input
bandwidth is available up to 5 MHz and may be sampled at up
to 10 MHz. A common motherboard is used, with the analog
section contained in a pluggable 2” by 4” module. This allows
for a family of several different Sample/Hold - A/D Converter
speed and resolution options by exchanging analog modules.
The analog input ranges of the A/D converter are selectable
as unipolar 0 to +10 V, or bipolar ±5 V, or ±10 V depending on
the model. Model PC-414E offers 16 single-ended or 8
differential high speed channels.
Models PC-414F, G, J, K, L, M, and P include a simultaneous
sampling section. This function acquires signals on parallel
channels at the same time. This prevents phase errors and
skewing of multichannel correlated signals. Applications
include high speed cross-channel computation, beam-former
coherency for sonar or acoustics, telemetry, multiple carrier
demodulation, and highly concurrent system testing.
Figure 1. Functional Block Diagram
A/D data passes to an on-board First-In, First-Out (FIFO) data
memory and then to the host computer bus interface under
software control. The FIFO acts to uncouple the precise
timing of the A/D section from the block-oriented data
transfers on the bus. The design can continuously collect
analog data with non-stop converter triggering while data is
simultaneously read from the FIFO. This allows the collection
of “seamless” wide-bandwidth signals of millions of samples or
greater. Functions such as FFT sampling cannot tolerate lost
samples without increases in “arithmetic” noise during
computation processing.
Data can be transferred to mass storage peripherals such as
disk or magnetic tape. Applications include long-baseline
studies in astrophysics, component life testing, and
anomalous pattern search.
Channel Address Sequencer
FIFO
Memory
Empty Half
Full
Trigger Control
Trigger In
D/A Out
External
Trigger
Trigger
Comparator
Analog Trigger
D/A Converter
82C54 Programmable
Interval Timer
Interrupt
Request
DMA
Request
I/O Bus
Interface
DC/DC
Power Converter
Base Address
Select
Registers
8MHz
ISA BUS
Half
Full
DMA
T/C
Parallel Outport or
DSP COMM Port
D/A Output
Ready Output
Acknowledge Input
External Enable Input
+5V
SSH Control
ACQ
EOC
Reset
FIFO Flags
A/D Start Clock
M
U
X
A/D
A/D
C
T
L
Analog
Inputs
Digital
I/O
8 out,
8 in
Pluggable Analog Section
PC-414
High-Speed Analog Input Board
for ISA Computers
Now with
LabVIEW
VI's
DATEL, Inc., Mansfield, MA 02048 (USA)
Tel: (508)339-3000, (800)233-2765 Fax: (508)339-6356
Email: sales@datel.com
Internet: www.datel.com
79
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