W DEVICES
I
ANALOG
5V Output
A
Transformers
I
RTM/STM
1686/1696/1736/1687/1697/1737
RTM/STM
1686
SPECIFICATIONS
ACCURACY!
OPERATING
(after balancing)
FREQUENCY
LOAD CAPABILITY
OPERATING
TEMPERATURE
OBS
400Hz
SVA
SOOVdc
INFORMATION
Line-to- Line
(typical @ +2SoC unless otherwise noted)
:!:2.4 arc minutes
-SSoC to +10SoC
STORAGE TEMPERATURE
VOLTAGE ISOLATION
WEIGHT
NOTES
-55°C to +12SoC
OLE
TE
N"ONO'"
'R""'ON
eow,"
SOORn
O" °,.""
g:! o,~~'" "N
g:~
°:
$T"~""
g;
'OWCR-
.",
CO$'~-
ONO
g: "'ORn~ '"
0'
01
O,
"'0-1
+- "
Nom
"""OSED'ORR""'"""""ON
"'O'."".AS"", BANO
"OM""O
R,o
e,.,
21 ounces (S80G)
Figure
1.
DiagramShowing Connection of the STM1686 to a
DTM1716 or DTM1717 and SPA
1695
(See Notes)
RTM/STMI686 OUTLINE DIMENSIONS
AND PIN CONNECTION DIAGRAM
Dimensions shown in inches and (mm).
II
1Accuracy applies over the full operating temperatUre range of the
option and for:
(a) :1:10%reference frequency and amplitude variation.
(b) 10% harmonic distortion on the reference.
(c) Any balanced load from no load to full load.
Specifications subject to change without notice.
APPLICATION OF THE RTM/STM1686
The RTM/STMI686 should be used in conjunction with the
DTM1716 or theDTM1717 Digital Vector Generator and the
SPA169S Power Amplifier.
ORDERING
-11-0,0",0,,"',
:'~R"o
Part Numher
STM1686611
STM1686612
RTM1686618
NOte. For options
Operating
Temp. Range
-55°C
to
+10SoC
-55°C to +lOSoC
-55°C
to +lOSoC
Output Voltage
and Format
11.8V Synchro
90.0V Synchro
11.8V Resolver
Reference
Voltage
26V
11SV
26V
Reference
Frequency
~O()II,
~OOIII
~OOII,
::J
'~;~'~:~:~":"' O'A
::~
.
,
L
Q"
.",
0;
I
""""'»NO'ORR"O'V'R""'O'O'"
~
not shown above. consult the factory
~~~
..~~
~~
1'1
nil
v I
nl
I"""
POWt"
SOUR"
°" O""""
g;;
0,",°,""""N
On
0>0
,0,;
SPECIFICATIONS
ACCURACY!
OPERATING
OPERATING
(typical @ +2SoC unless otherwise noted)
:t2.4 arc minutcs
400Hz
SVA
-55°C to +10SoC
-55°C to +12SoC
SOOV dc
22 ounces (620G)
(after balancing)
FREQUENCY
TEMPERATURE
8;
""",,-
0'
""
~
03
0'
O'
g:
"'O"..~
."v
GNO
"V
LOAD CAPABILITY
,"of
NO'"
", '"
",W'O"
",""V," ""'ON
'" O,",""'H""N""NOl<O.""O
j- "
".0
""
STORAGE TEMPERATURE
VOLTAGE ISOLATION
WEIGHT
NOTE:
1See STM 1686 note 1.
Figure
2.
Diagram Showing Connection of the STM1696
DSC1705 or DSC1706 and SPA
1695
(See Notes)
RTM/STM1686 OUTLINE DIMENSIONS
AND PIN CONNECTION DIAGRAM
Dimensions shown in inches and (mm).
1
to
a
Specifications subject to change without notice.
OBS
ORDERING
INFORMATION
Line-to'Line
Part Number
STMI696611
STMI696612
RTM 169661B
Operating
Temp. Range
-SSoC (0 +IOSoC
-SSoC to +IOSoC
-SSoC to +IOSoC
Output Voltage
and Format
11.BV Synchro
90.0V Synchro
II.BV Resolver
Note, For options not shown above, consult the factOry.
APPLICATION OF THE RTM/STM1696
The RTM/STM1696 should be used in conjunction with the
DSC170S or DSC1706 Digital-to-Synchro (or Resolver) Con-
verter and the SPA169S Power Amplifier.
1
BOTTO.
VOEW
".°"°0<0'°00'°"
HA"OGOCO"A"
fl..O..Il.Il1I.
=rT
--11- °' G"OO2",
<
BR.SS
~'
Reference
Voltage
26V
l1SV
26V
Reference
Frequency
400Hz
400llz
400Hz
RTM/STM
1736
SPECIFICATIONS
ACCURACY!
OPERATING
(after balancing)
FREQUENCY
LOAD CAPABILITY
OPERATING
TEMPERATURE
(typical @ +2SoC unless otherwise noted)
:t2.4 arc minutes
400Hz
SVA
-55°C to +10SoC
-55°C to +12SoC
SOOV dc
OLE
TE
." "N'"m., '0" ""oev'" O"OON
0."
o" 0,",'"'"
g;; O~~""
°"
0',0
g: 'UB -
g; ",W'"-
g: ",0""-
03
02
"N
'0'
'OSV
GNO
OSV
",W'" ",U"CE
.OSV
."O NO'B'
'"""'ON
°,
STORAGE TEMPERATURE
VOLTAGE ISOLATION
NOns
""'O"O 'O" ",""V," O"'ON
,,"O,",""'H"".'"
"."."o.omo
"2
"
WEIGHT
19 ounces (540G)
Note:
1See STM1686 note 1.
Specifications subject to change without notice.
APPLICATIONS
OF THE RTM/STMl736
The RTM/STMI736 should be used in conjunction with the
DSCI60S or the DSCI606 Digital-to-Synchro Converter and
the SPA169S Power Amplifier.
ORDERING
INFORMATION
Operating
Temp. Range
-SSoC
-55°C
-SSoC
-SSoC
-55°C
to
to
to
to
to
+IOSoC
+IOSoC
+IOSoC
+IOSoC
+IOSoC
Line-to-Line
Output Voltage
and Format
II.BV Synchro
90.0V Synchro
II.BV Resolver
26 V Resolver
II.BV Resolver
Reference
Voltage
26V
IISV
II.BV
26V
26V
Reference
Figure
3.
Diagram Showing Connection of the. STM
1736 to
a
DSC1605 or DSC1606 and SPA
1695
(See Notes)
RTM/STM1736 OUTLINE DIMENSIONS
AND PIN CONNECTION DIAGRAM
Dimensions shown in inches and (mm).
1
=TT
1
it
BOTTOM
VOEW
Part Number
STMI736611
STMI736612
RTM1736613
RTMI736614
RTMI73661B
Frequency
400llz
4001lz
400llz
400llz
400llz
".0..
00<0
.0000
HA"OGOlO"A"
fl..O..Il.Il1I.
-11-000"00<2'"
DOh B"ASS
Note, For options not shown above, consult the factory.
""'.'""'N"O""O5o.VI"O',"O.ON"
NOTES FOR FIGURES 1, 2, AND 3:
1. The "Sin FIB" and the "Cos FIB" pins of the SPA1695
should be connected directly of the "Sin" and "Cos"
terminals on the output transformer
at tbe transformer.
This is to compensate for any drop in voltage along the
connections between the "Sin O/P" and "Cos 0 IP" pins
of the amplifier and the transformer.
VOL.
II, 13-34
SYNCHRO
&
RESOL VER CONVERTERS
--
-
2. The "+ISY" and "-ISY" pins of the SPA169S should be
connected to a regulated power supply in order to drive
the internal operational amplifiers. The "+ISY(P)" and
"-ISY(P)" are used for the output stage and these supplies
need not be a precision source, the range of voltage when
considering all tolerances including ripple, should be be-
tween 14.7 S and 20 volts.
3. The part of the 0 volt system local to the amplifier and
converter should be tapped from the "GND(SIG)" pin on
the transformer and should not interconnect wi th any
other part of the 0 volt system by any other method (see
above diagram).
STM1687
SPECIFICATIONS
ACCURACY!
OPERATING
(typical @ +ZSoC unless otherwise noted)
014
SIN
FIB
lIP
alP
'15V
(after balancing)
FREQUENCY
:tZ.4 arc minutes
60Hz
SVA
-SSoC to +10SoC
-SSoC to +12SoC
SOOV dc
)
SPA'695
.15VIPI
'15VIPI
NEW NOT BE
PRECISION
POWER SOURCE
SIN
.15V
,15V
013
cas
aNa
cas
.15V
:::
010
09
08
07
06
STA8ILlZEO
POWER
SUPPLV
:~:
OV
(
FIB
alP
I/P
LOAD CAPABILITY
OPERATING TEMPERATURE
STORAGE TEMPERATURE
VOLTAGE ISOLATION
WEIGHT
(
.15V
V
OS
04
03
02
01
OTM1716
OR
OTMI717
53
Note:
I See STM1686 note 1.
Specifications subject to change without notice.
APPLICA TlON OF THE STM1687
The STM1687 should be used in conjunction with the
DTM1716 or the DTM1717 Digital Vector Generator and the
SPA169S Power Amplifier.
DIMENSIONS AND CONNECTIONS
The STM1687 consists of a kit of two D39S3 transformers
and one A10163 transformer. These should be connected as
shown in Figure 4.
The dimensions are given in Figures 7 and 8.
OBS
(typical
@ +2 SOC unless otherwise
SI
3 Ibs (1. 34kg)
52
NOTE
OTM1717
HASPINS13
AND14OMITTW
R'
STM1697
SPECIFICATIONS
OLE
TE
R2
THICK TRACK
OR WIRE
Figure
4.
DiagramShowing the Connection of a STM1687
to a DTM1716 or DTM1717 and a SPA
1695
ORDERING INFORMATION
The transformer should be ordered as:
STM1687622
SO/60Hz, Synchro output,
si~nal, liS volt reference.
90 volt
Note:
For options not shown above, consult the factory.
NEED
NOT
8E
noted)
014
013
SIN
SPA16!!?
."VI"
I/P
).,N
;:
.,SV
.'SV
ov
.,SVIPI
PRECISION
POWER SOURCE
.15V
"SV
GND
IIJ
ACCURACY!
OPERATING
OPERATING
(after balancing)
FREQUENCY
TEMPERATURE
:tZ.4 arc minutes
60Hz
SVA
-SSoC to +10SoC
-SSoC to +lZSoC
SOOV dc
3 Ibs (1.34kg)
cas
.ISV
STABILlZW
POWER
SUPPLV
G
N
0
012
011
0'0
09
cas(
alP
;;:
LOAD CAPABILITY
[
08
07
06
os
O'
03
02
01
OSC1705
OR
DSC1706
.ISV
V
STORAGE TEMPERATURE
VOLTAGE ISOLATION
WEIGHT
Note:
I See STM1686 note 1.
SIN
53
SI
S2
NOTE
DSC1706 HAS PINS 13
ANa 14 OMITTED
R'
R2
THICK TRACK
OR WIRE
Specifications subject to change without notice.
APPLICATION OF THE STM1697
The STM1697 should be used in conjunction with the
DSC170S or the DSC1706 Digital to Synchro Converter and
the SPA169S Power Amplifier.
DIMENSIONS AND CONNECTIONS
The STM1697 consists of a kit of two D39S3 transformers
and one A1003 3 transformer. These should be connected as
shown in Figure S.
The dimensions are given in Figures 7 and 8.
Figure
5.
DiagramShowing the Connection of a STM1697
to a DSC1706 or DSC1705 and a SPA
1695
ORDERING INFORMATION
This transformer should be ordered as:
STM1697622
SO/60Hz, Synchro output,
signal, lIS volt reference.
90 volt
Note:
For options not shown above, consult the factory.
~
~---~.
~--
SPECIFICATIONS
ACCURACY]
OPERATING
LOAD
(after
(typical
@ +2SoC unless otherwise
:1:2.4 arc minutes
601lz
SVA
noted)
0>4
~:
'"
dSV
balancing)
)
sP""""
)5VI"
.>5V'"
NIH> Nm Of
PNICISION
POWfN S(>UNCI
,>v
SIN
I;NO
ens
FREQUENCY
::
0"
.
0"
:
.oW
SJ
AHlWH'
.
POW, N
I.NO
CAPABILITY
0 '0
511""
[
:::
0"
[
,"C""'"
ON
OSe.""
'W
OPERATING
TEMPERATURE
-SSoC to +10SoC
-SSoC to +12SoC
SOOV de
3 lbs (1. 34kg)
0 I
06
OS
04
03
SIN
53
STORAGE TEMPERATURE
VOLTAGE ISOLATION
WEIGHT
Note:
1
See
5>
SJ
52
51
01
0'
NOT!
DSC"","AS"NS""J3
ANO140MITHO
STM1686 note 1.
N,O
Specifications subject to change without notice.
T">CK TAACK
OA WI A'
GND
-0
V
A"
R2
OBS
The dimensions are given in Figures 7 and 8.
2.312
1135.72511
1.94
14181
APPLICA nON OF THE STMI73 7
The STM1737 should be used in conjunction with the
DSC160S or the DSC1606 Digital-to-Synchro Converter and
the SPA169 S Power Amplifier.
Figure
6.
DiagramShowing the Connection of a STM1737
to a DSC1606 or DSC1605and a SPA
1695
ORDERING INFORMA nON
This transformer should be ordered as:
STM1737622
SO/60Hz, Synchro output,
signal, l1S volt reference.
90 volt
DIMENSIONS AND CONNECTIONS
The STM173 7 consists of a kit of two
D39S
3 transformers
and one AI003 3 transformer. These should be connected as
shown in Figure 6.
2.25157.15I
1
D
~
.
SIN
n
L
1.38
J
1135.05~1
I
OLE
TE
~
Note:
For options not shown above, consult the factory.
OUTLINE DIMENSIONS
Dimensions shown in inches and (mm).
r1O
12541-j
n
I
T
0.75
~'1.0
125.41,1
0.40110.21
---L-
~
19.144116.5941
MARKED WITH A
WHITE SPOT
FIXING
FOR 4mm
SCREWIN 2 POSITIONS
N.B. PIN NUMBERS
NOT MARKED ON
TRANSFORMERS
WHITE
SPOT
3':'
FL YING LEAD
"A" SIDE
1.:.
PLAN VIEW OF TRANSFORMER SHOWING
PIN ARRANGEMENT ON UNDERSIDE
Figure
7.
Outline Drawing and Dimensions of the D3953
Transformer
BALANCING SCOTT-T
TRANSFORMERS
(APPLIES ONLY
TO TRANSFORMERS IN KIT FORM).
Figure
8,
Outline Drawing and Dimensions of the A 10163
and A 10033 Transformers
sine and cosine contribution,
The 3 wire output signal is then monitored on an Angle
Position Indicator (e.g. APIl620 or AP11718) with no load
attached. A resistor R 1 should be connected across S 1 and S 3
until the API reads 45.00°.
A balanced load is then connected across S I, S2 and S3 the
change in angle is monitored by the API and minimized by
adding resistors (R2 and R3) in series with SI and S3. R2 and
R3 will have equal values. Increasing R2 and R3 will decrease
the angle monitored by the API.
Suggested initial values for R 1 is 27kn and for R2 and R3 is
30n.
Thc transformer nlOJules STM1686, 1696 and 1736 are
balanced beforc leaving the factory.
.
I
t--O S1
S3
CO
PRIMARY
I
SECONDARY
52
Figure
9.
Diagram Showing Balancing Circuit
The Scott T transformers (two
D39S3
transformers)
balanced by the following method:
can be
Connect the primary windings of the transformers to give a
known angle inpu t of 4So. This can be done by connecting the
two
coils in parallel to a 7V fins supply, thus giving an equal
VOL. II,
13-36
SYNCHRO
&
RESOL VER CONVERTERS
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