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3
Data Device Corporation
www.ddc-web.com
SD-14590/91/92
D-02/02-250
VALUE
PARAMETER
UNIT
TABLE 1. SD-14590/91/92 SPECIFICATIONS
These specifications apply over the rated power supply, temperature,
and reference frequency ranges; 10% signal amplitude variation and
10% harmonic distortion.
RESOLUTION (NOTE 1)
ACCURACY (NOTE 2)
REPEATABILITY
DIFFERENTIAL LINEARITY
SIGNAL INPUT
CHARACTERISTICS
(voltage options and minimum
input impedance balanced)
Synchro
Zin line-to-line
Zin each line-to-ground
Resolver
Zin single ended
Zin differential
Zin each line-to-ground
Common-mode Range
Direct (1 VL-L)
Input Signal Type
Sin/Cos Voltage Range
Max Voltage w/o Damage
Input Impedance
REFERENCE SYNTHESIZER
±Sig/Ref Phase Shift
POWER SUPPLY
CHARACTERISTICS
Nominal Voltage
Voltage Range
Max Voltage w/o Damage
Current
TEMPERATURE RANGES
Operating
-30X
-20X
-10X
Storage
PHYSICAL
CHARACTERISTICS
Size
Weight
in.
(mm.)
oz
(g)
1.9 x 0.78 x 0.21
(48.3 x 19.8 x 5.3)
36 Pin Double Dip
0.7 max
(20)
°C
0 to +70
-40 to +85
-55 to +125
-65 to +150
±%
V
mA max
+15V
+5V
510
+18
+8
25
10
V
Ohm
V
Ohm
V
Vrms
Ohm
Deg
45 typ, 60 max
11.8 VL-L
17.5k
11.5k
11.8 VL-L
23k
46k
23k
25 max
90 VL-L
130k
85k
26 VL-L
50k
100k
50k
60 max
Bits
Minutes
LSB
14, 16, 14/16
4, 2, or 1 +1 LSB
1 max
1 max in the 16th bit
REFERENCE INPUT
CHARACTERISTICS
Carrier Frequency Ranges
Nominal 400 Hz Units
Voltage Range
Input Impedance
Single Ended
Differential
Common Mode Range
Hz
Vrms
Ohm
V
360 - 1000
47 - 1000
4 - 130
250k min
500k min
210 peak max
500 transient peak
ANALOG OUTPUTS
Velocity (VEL)
AC error (e)
Bias Voltage (V)
Load
See Tables 3 and 4
3.125 16 bit mode
6.130 14 bit mode
1/3 Vs ±10%
3 min
mV rms
kOhm
TABLE 1. SD-14590/91/92 SPECIFICATIONS (CONT.)
These specifications apply over the rated power supply, temperature,
and reference frequency ranges; 10% signal amplitude variation and
10% harmonic distortion.
VALUE
PARAMETER
UNIT
Output Parallel Data
Converter Busy (CB)
BIT
Drive Capability
14 or 16 parallel lines; natural
binary angle, positive logic
0.4 to 2 s positive pulse;
leading edge initiates counter
update.
Logic 1 for fault.
50 pF plus rated logic drive.
Logic 0; 1 TTL load,
1.6 mA at 0.4 Vmax
Logic 1; 10 TTL loads
0.4 mA at 2.8 Vmin
High Z; 10 A//5 pF max
Logic 0; 100 mV max
driving CMOS
Logic 1; +5 V supply minus
100 mV min driving CMOS
bits
DIGITAL INPUT/OUTPUT
Logic Type
Inputs
Inhibit (INH)
Enable MSB’s (EM) (Note 3)
Pull down
Enable LSB’s (EL) (Note 3)
Pull down
Resolution Control (A)
(SD-14590 only)
(Unused Output Data Bits
Are Set to 0)
TTL/CMOS compatible
Logic 0 = 0.8 V max
Logic 1 = 2.0 V min
Loading = 30 A max P.U.
current source
to +5 V//5pF max
CMOS transient protected
Logic 0 inhibits
Data stable after 0.5s
Logic 0 enables
Logic 1 High Z
30A
Logic 0 enables
Logic 1 High Z
30A
1
14 bits
0
16 bits
Sin and Cos resolver sig-
nals referenced to converter
internal DC reference V.
1 V nominal, 1.15 V max
15 V continuous
100 V Peak Transient
Zin > 20M//10 pF
voltage follower
DYNAMIC
CHARACTERISTICS
See TABLE 3
TRANSFORMER
CHARACTERISTICS
(See ordering information for
list of Transformers.
Reference Transformers are
Optional for Both Solid-State
and Voltage Follower Input
Options.)
400 Hz TRANSFORMERS
Reference Transformer
Carrier Frequency Range
Voltage Range
Input Impedance
Breakdown Voltage to GND
360 - 1000 Hz
18 - 130 V
40 k
min
1200 V peak