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参数资料
| 型号： | RDC-632-M-1 |
| 厂商： | DATA DEVICE CORP |
| 元件分类： | 位置变换器 |
| 英文描述： | SYNCHRO OR RESOLVER TO DIGITAL CONVERTER, DMA27 |
| 文件页数： | 5/7页 |
| 文件大小： | 121K |
| 代理商： | RDC-632-M-1 |
5
Data Device Corporation
www.ddc-web.com
SDC-630/632/634
H-07/05-0
ACCOMMODATING NON-STANDARD INPUT
VOLTAGES
The signal and reference input levels of the SDC-630 series can
be resistively scaled to accommodate non-standard voltages. A
converter should be selected that is the next lower standard volt-
age and the voltage is then scaled up with resistors in series with
the synchro and/or reference inputs.
For a synchro input (SDC), a resistor RSIG is added in series with
S1, S2 and S3, which is determined as follows:
RSIG = 1.11K (New L-L Voltage - Standard Unit Voltage)
That is, 1.11K for each volt above that for which the standard unit
is designed.
Example: An SDC-634-L (11.8V) is to be used at 50V L-L.
RSIG = 1.11K (50-11.8) = 42.4K
The closest available high grade resistor with a low temperature
coefficient of resistance should be used, and the three resistors
should be matched to each other as closely as possible. In gen-
eral, a 0.1% difference will introduce 1.7 arc minutes of addition-
al error due to the effect on
ratio relationship.
The ABSOLUTE value of the resistor is not critical.
SIN
COS
In the case of the RESOLVER version (RDC), the equation is:
RSIG = 2.2K (New L-L level - Standard Unit L-L level)
The calculated resistors are connected in series with S1 and S2
respectively. Note only two resistors are required. The required
resistor matching and its effect on accuracy, is the same as for a
synchro input (See FIGURE 4).
The Reference Voltage treatment is similar, but the value select-
ed is not critical.
RRef = 2.8K (New Ref - Standard Ref)
Here, even a 10% tolerance is adequate.
SDC-630
R
S1
S2
S3
R
SIG
REF
SIG
NON-STANDARD
LINE-TO-LINE
LEVEL
NON-STANDARD
REFERENCE
LEVEL
FIGURE 4. SIGNAL AND REFERENCE SCALING
14 LSB
VEL
13
0.015
0.002
0.015
0.01
0.10
(Min)
Dia (Typ)
(Max)
(Typ.)
(Tol. Noncum.)
0.01
+
-
+
12
S4
11
S3
10
SDC-630
or
SDC-632
or
SDC-634
2.625
(66.68)
Dimensions in inches (mm).
3.125
(79.38)
0.26
(6.604)
0.21
(5.334)
2.2
(55.88)
0.25
(6.35)
0.430
(10.92)
0.040
(1.02)
0.20
(5.08)
BOTTOM VIEW
SIDE VIEW
S2
9
S1
8
CB
7
INH
6
+15V
5
GND
4
-15V
3
+5V
2
RL
1MSB
RH
Notes:
1. Pin material is electrosoldered brass per MIL-F-14072, M222.
2. Case material is glass filled Diallyl Phthalate per MIL-M-14, Type SDG-F.
3. Pins 13 and 14 are omitted for SDC-632, and pins 11, 12, 13, and 14 are omitted for SDC-630.
4. Velocity output pin VEL is present only if requested on special order.
5. Pin S4 is present on Resolver units, and omitted on Synchro units.
FIGURE 5. SDC-630/632/634 MECHANICAL OUTLINE
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相关代理商/技术参数 |
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|---|---|
| RDC-632-ST-H-1-R | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Resolver-to-Digital Converter |
| RDC-632-ST-H-3-R | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Resolver-to-Digital Converter |
| RDC-632-ST-L-1-R | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Resolver-to-Digital Converter |
| RDC-632-ST-L-3-R | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Resolver-to-Digital Converter |
| RDC-634-A-H-1-AR | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Converter |
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