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PDF SDC362 Data sheet ( Hoja de datos )
| Número de pieza | SDC362 | |
| Descripción | (SDC361 / SDC362) 16-Bit 2 Speed Synchro to Digital and Resolver to Digital Converter | |
| Fabricantes | DDC | |
| Logotipo |  |
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www.DataSheet4U.com
SDC-361/362
16-BIT, TWO SPEED SYNCHRO-TO-DIGITAL
AND RESOLVER-TO-DIGITAL CONVERTER
DESCRIPTION
The SDC-361 is a low-cost, single
module synchro-to-digital (S/D) and
resolver-to-digital (R/D) tracking con-
verter. A unique control transformer
algorithm is used that provides inher-
ently higher accuracy and jitter-free
output. Other features include a BIT
logic signal to indicate proper tracking
and an analog velocity output.
Utilizing a type II servo loop, these
converters have no velocity lag up to
the specified tracking rate, and output
data is always fresh and continuously
available. Each unit is fully trimmed
and requires no adjustment.
APPLICATIONS
The SDC-361 may be used wherever
analog angle data from synchros or
resolvers must be converted rapidly
and accurately to digital form for
transmission, storage and analysis.
Because these units are extremely
rugged and stable, and meet the
requirements of MIL-STD-202E, they
are suitable for the most severe
industrial, commercial and military
applications. Military ground support
and avionics uses include ordnance
control, radar tracking systems, navi-
gation and collision avoidance sys-
tems.
FEATURES
• Accuracy: ±1 LSB = ±20 Seconds
• SIGNAL AND REF INPUTS:
- Internal Transformer Isolation
- Broadband Input: 350-3000 Hz
or 47-3000 Hz
- All common L-L voltage levels
• LOGIC:
- TTL Compatible
- 16-Bit Parallel Binary Angle
Output, and Converter Busy,
Inhibit and BIT
• POWER REQUIREMENTS:
- ±15 VDC and +5 VDC
SIN (θ - φ)
SIN 36 (θ - φ)
STICKOFF
36X
SYNCHRO
INPUT
S1
S2
S3
SCOTT-T
SIN 36θ CONTROL
TRANSFORMER
TRANSFORMER
COS 36θ
CT
-
+
CROSS-OVER
DETECTOR
REFERENCE
ISOLATION
TRANSFORMER
RH REF
RL INPUT
36 φ ERROR
36X OR 1X RESOLVER INPUT OPTION:
(θ - φ)
R
ERROR PROCESSOR
VEL VELOCITY
S1
RESOLVER S2
INPUT S3
S4
RESOLVER
ISOLATION
TRANSFORMER
SIN θ
COS θ
36X DIGITAL
MULTIPLIER
φ
AND VOLTAGE
CONTROLLED
OSCILLATOR
INH INHIBIT
CB CONVERTER
BUSY
16 BIT
UP-DOWN COUNTER
om1X
.cSYNCHRO
UINPUT
S1
S2
S3
(CONTAINS ANGLE φ)
φ
SCOTT-T
SIN θ
TRANSFORMER
COS θ
CONTROL
TRANSFORMER
CT
SIN (θ − φ +2.5˚)
CONTAINS 2.5˚
ANGLE OFFSET
www.DataSheet4© 1980, 1999 Data Device Corporation
FIGURE 1. BLOCK DIAGRAM
DIGITAL OUTPUT φ
BITS 1to 16
NOTE: Block Diagram Illustrates
SDC-361. All References to "36X"
are "18X" for SDC-362.
1 page  
www.DataSheet4U.com
2.625 ± .015
(66.7 ± 0.4)
BIT
VEL
CB
INH
26 SPACES @
.100 ± .010 = 2.600
(2.5 ± 0.3 = 66.0)
(TOL. NON-CUM.)
.262 ± .020
(6.7 ± .051) .100 (2.54)
(TYP)
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
*36X S4
36X S1
36X S3
36X S2
RL
RH
1X S3
1X S1
1X S2
*1X S4
+15V
-15V
GND
+5V
3.125 ± .015
(79.3 ± 0.4)
.025 ± .001
(0.6 ± 0.03)
SQUARE PIN
(TYP)
.162 ± .020
(4.1 ± 0.5)
2.300 ± .010
(58.4 ± 0.3)
BOTTOM
VIEW
.250 (6.4)
(MIN)
Notes:
1. All reference to 36X become 18X on SDC-362.
2. Pin labels for reference only.
3. All dimensions shown in inches (mm).
4. Pin material meets solderability requirements of
MIL-STD-202E, Method 208C.
5. Case material is glass filled Diallyl Phthalate
per MIL-M-14, Type SDG-F.
6. S4 pins are present on resolver units only.
FIGURE 6. MECHANICAL OUTLINE
ORDERING INFORMATION
SDC-361-H-I
Temperature Range
1 = –55° to +105°C
3 = 0° to +70°C
Signal Input Voltage and Frequency
H = 90 V L-L, 400 Hz (Synchro or Resolver)
I = 90 V L-L, 60 Hz (Synchro only)
M = 26 V L-L, 400 Hz (Resolver only)
L = 11.8 V L-L, 400 Hz (Synchro or Resolver)
Speed
m361 = 1 x 36 speed
o362 = 1 x 18 speed
.cInput Type
U SDC = Synchro
www.DataSheet4 RDC = Resolver
5
.82(21)
(MAX)
5 Page | ||
| Páginas | Total 6 Páginas | |
| PDF Descargar | [ Datasheet SDC362.PDF ] | |
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