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參數(shù)資料
| 型號： | PC-414A |
| 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)： | 9/14頁 |
| 文件大小： | 197K |
| 代理商： | PC-414A |
PC-414
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
85
9.
5 MHz sampling on PC-414D requires an external clock.
Maximum on-board sampling is 4 MHz.
10. Input impedance is shown with power on. Impedance
with power off is 1.5 k
or less.
11. PC-414G acquisition time is 350 ns to ±0.01% of FSR.
12. All channels in simultaneous sampling.
13. PC-414J and L bipolar input is user-selectable ±5 V or
±10 V per channel (default). Total full scale error over
temperature range is ±4 LSB maximum. Total zero/offset
error over temperature range is ±2 LSB maximum.
Monotonicity: no missing codes over temperature range.
14. Avoid mixing external triggers which are a close submultiple
of the internal A/D start clock to prevent lost samples.
15. Models PC-414D, H, K, and M use a single channel
12-bit A/D converter with ±5 V inputs. An external A/D
clock is required above 4 MHz and the 82C54 timer must
be bypassed. 10 MHz sampling may continue until the
FIFO memory is full.
16. Input polarity. Some models are fixed as bipolar only
whereas others are user-selectable unipolar or bipolar.
Still others require separate model numbers.
17. Models F, G, J, K, L, M, N, and P use one A/D converter
per channel.
18. The customer must use shielded cables to insure EMC
compliance.
19. A/D-per-channel boards (models F, G, J, K, L, M, N, P)
may be operated in “software differential” mode. Two
A/D’s are applied to the high and low legs of a single
differential input channel. The two data values are then
algebraically subtracted, either on the fly in real time or
after all samples have been stored. Channel capacity in
“software differential” is one-half the number of single-
ended channels.
This technique offers excellent bandwidth, high common
mode rejection and optional mix of single-ended and
differential channels.
NOTES
1.
Resistor-programmed gain from x1 to x100 is available
on PC-414E with increased settling delay at higher gain.
2.
Total throughput includes MUX settling time after
changing the channel address, S/H acquisition time to
rated specifications, A/D conversion, and FIFO transfer.
Total throughput is not delayed by host software
whenever the FIFO is not full.
3.
THD test conditions are:
A. Input freq.
500 kHz (414F)
50 kHz (414J,L,M) 1 MHz (414D,K,N,P)
2 MHz (414H)
B. Generator/filter THD is -90 dB minimum.
C. THD computed by FFT to 5th harmonic.
( V2
2
+ V3
2
+ V4
2
+ V5
2
0.5
log10
( )
THD = 20
200 kHz (414B,E,G)
D. Inputs are half full scale less 0.5 dB. No channel
advance.
E. A/D sample rate = 500 kHz (414B,E,G), 4 MHz (414D,K),
2 MHz (414F), 10 MHz (414H), 250 kHz (414J),
190 kHz (414L,M), 2.5 MHz (414P)
4.
The rates shown for sequential sampling are the
maximum A/D converter start rates and include MUX
sequencing and settling. For example, if four channels
of the PCI-414E were scanned, the maximum sample
rate on any one channel would be 2 μs x 4 channels =
8 μs (125 kHz per channel).
5.
For fastest response on the analog comparator trigger,
keep the reference voltage near the trip input voltage. To
avoid overload recovery delays, do not let the trip input
(or any other analog input) exceed ±10V.
6.
The input impedance of 10 M
minimum avoids attenuation
errors from external input source resistance. For many
applications, an in-line coaxial 50
shunt, inserted
adjacent to the front connectors, is recommended to
reduce reflections and standing wave errors.
7.
Allow 20 minutes warmup time to rated specifications for
models PC-414B,G,M,N.
8.
A 25-pin DB-25S connector is used for the PC-414E, J,
and L.
Multipurpose Connector
[Note 8]
5th SMA user-selectable for:
1. Pacer trigger input
2. Analog threshold
comparator input
0 to +60°C, forced cooling
recommended.
-25 to +85°C
10% to 90%,
non-condensing.
0 to 10,000 feet.
+5V @ 3.5A max. from
ISA bus
4.5 x 10.5 x 0.625 inches,
compatible to PC/ISA bus
Operating Temp. Range
Storage Temp. Range
Humidity
Altitude
Power Required
Outline Dimensions
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| PC-414NT | Last Time Buy Notice ? Board Products |
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| PC-414LV | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Last Time Buy Notice ? Board Products |
| PC-414LVS | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Last Time Buy Notice ? Board Products |
| PC-414NT | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Last Time Buy Notice ? Board Products |
| PC-414NTS | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Last Time Buy Notice ? Board Products |
| PC-414SET | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Last Time Buy Notice ? Board Products |
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