O V E R V I E W
Data Device Corporation
SB-3642 Manual
Rev D – 4/19
10
Table 2. SB-3642 Specification Table (Note 1)
These specs apply over the rated power supply, temperature, and reference frequency ranges: 10% signal
amplitude variation, and 10% harmonic distortion (for values without a tolerance already specified).
PARAMETER
MIN
TYP
MAX
UNITS
DYNAMIC CHARACTERISTICS
AT 400 HZ NOMINAL CARRIER F.
At Resolution
10
12
14
16
Bits
At Bandwidth
Low
Note 6
Note 6
80
80
Hz
High
300
300
Note 7
Note 7
Hz
• Max. Tracking Rate
320
80
20
5
RPS
• Velocity Scale Factor
0.0125
0.05
0.2
0.8
Volts / RPS
DYNAMIC CHARACTERISTICS
AT 60 HZ NOMINAL CARRIER F.
At Resolution
10
12
14
16
Bits
At Bandwidth
Low
Note 6
Note 6
15
15
Hz
High
45
45
Note 7
Note 7
Hz
• Max. Tracking Rate
32
8
2
0.5
RPS
• Velocity Scale Factor
0.125
0.5
2
8
Volts / RPS
VELOCITY OUTPUT CHARACTERISTICS
Voltage Range
-4.0
4.0
V
Scale Factor Error
10
20
%
Scale Factor TC
100
200
PPM / ºC
Reversal Error
1
2
%
Linearity
0.5
1
% output
Zero Offset
5
15
mV
Zero Offset TC
15
30
µV / ºC
Load
10
k
Ω
BIT FAULT CONDITIONS (Note 8)
Dependent on Card Ordering Option
(hardware pin available on 4-channel board only)
SB-36420
SB-36421
SB-36422
SB-36423
SB-36424
Loss of Signal (LOS) when SIN & COS is below…
0.5 Vrms
3 VLL
22.5 VLL
Loss of Reference (LOR) when reference is below…
1.0
Vrms
Loss of Tracking (LOT) when difference between digital
output and analog input exceeds…
100 LSBs in the positive direction, or 250 LSBs in
the negative direction
LSBs
180º Phase Error when input signal to reference input
gives false null
180º Out of Phase
Degrees
DIGITAL OUTPUTS DRIVE CAPABILITY (A, B, ZIP,
BIT signals)
Logic 0, 1 TTL load at 0.4V max.
1.6
mA
Logic 1, 10 TTL loads at 2.8V min.
0.4
mA
