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参数资料
| 型号： | SB-36311CX-225N |
| 厂商： | DATA DEVICE CORP |
| 元件分类： | 位置变换器 |
| 英文描述： | SYNCHRO OR RESOLVER TO DIGITAL CONVERTER, XMA |
| 文件页数： | 4/7页 |
| 文件大小： | 197K |
| 代理商： | SB-36311CX-225N |
4
Data Device Corporation
www.ddc-web.com
SB-36310CX
G-05/05-0
TRANSFER FUNCTION
The dynamic performance of the converter can be determined
from its Transfer Function (Refer to FIGURES 2 and 3). The open
loop transfer function is as follows:
Open Loop Transfer Function =
A2
S
B
+1
(
)
S2
S
10B
+1
(
)
where A is the gain coefficient and A2 = A1A2
and B is the frequency of lead compensation
Error Processor, G1 Gain =
A1
S
B
+1
(
)
S
10B
+1
(
)
VCO, G2 = A2 / S
PARAMETER
UNIT
HIGH RANGE
Resolution
Tracking Rate
BW (Closed Loop)
Ka
A1
A2
A
B
Acceleration (1 LSB lag)
Settling Time
(179 deg. step)
bits
rps min.
(typ)
Hz nom.
1/sec2
1/sec
deg/sec
ms typ.
10*
1152
300
506k
1.7
296k
711.7
355.8
178.3k
10.2
12*
288
300
506k
1.7
296k
711.7
355.8
44.6k
12.9
14**
72
300
506k
1.7
296k
711.7
355.8
11.1k
20.9
16**
18
300
506k
1.7
296k
711.7
355.8
2.8k
43.0
PARAMETER
UNIT
LOW RANGE
Resolution
Tracking Rate
BW (Closed Loop)
Ka
A1
A2
A
B
Acceleration (1 LSB lag)
Settling Time
(179 deg. step)
bits
rps min.
(typ)
Hz nom.
1/sec2
1/sec
deg/sec
ms typ.
10*
320
80
31.6k
0.44
81.6k
177.7
88.9
11.1k
40.9
12*
80
31.6k
0.44
81.6k
177.7
88.9
2.8k
51.2
14**
20
80
31.6k
0.44
81.6k
177.7
88.9
695
81.1
16**
5
80
31.6k
0.44
81.6k
177.7
88.9
173.7
161
PARAMETER
UNIT
HIGH RANGE
Resolution
Tracking Rate
BW (Closed Loop)
Ka
A1
A2
A
B
Acceleration (1 LSB lag)
Settling Time
(179 deg. step)
bits
rps min.
(typ)
Hz nom.
1/sec2
1/sec
deg/sec
ms typ.
10*
160
45
10.13k
0.25
41.03k
100
50
3.57k
73
12*
40
45
10.13k
0.25
41.03k
100
50
891.4
92
14**
10
45
10.13k
0.25
41.03k
100
50
222.9
149
16**
2.5
45
10.13k
0.25
41.03k
100
50
55.7
308
PARAMETER
UNIT
LOW RANGE
Resolution
Tracking Rate
BW (Closed Loop)
Ka
A1
A2
A
B
Acceleration (1 LSB lag)
Settling Time
(179 deg. step)
bits
rps min.
(typ)
Hz nom.
1/sec2
1/sec
deg/sec
ms typ.
10*
32
15
1.11k
0.14
8.16k
33.3
16.7
390.83
226
12*
8
15
1.11k
0.14
8.16k
33.3
16.7
97.71
302
14**
2
15
1.11k
0.14
8.16k
33.3
16.7
24.43
549
16**
0.5
15
1.11k
0.14
8.16k
33.3
16.7
6.11
1325
TABLE 2A. DYNAMIC CHARACTERISTICS
HIGH BANDWIDTH CARD
*
Exceeds tracking rate to bandwidth ratio. Selecting a bandwidth that is too
low relative to the maximum application tracking rate can create a spin-around
condition in which the converter never settles (particularly during initial power
-up.) (Refer to “Tracking/BW Relationship” table in RDC-19222S data sheet.)
** Converters may jitter at carrier frequencies < 225 Hz
*
Exceeds tracking rate to bandwidth ratio. Selecting a bandwidth that is too
low relative to the maximum application tracking rate can create a spin-around
condition in which the converter never settles (particularly during initial power
-up.) (Refer to “Tracking/BW Relationship” table in RDC-19222S data sheet.)
** Converters may jitter at carrier frequencies < 1.5 kHz
TABLE 2B. DYNAMIC CHARACTERISTICS
LOW BANDWIDTH CARD
PARAMETER
UNIT
TYPICAL
MAX./MIN.
Polarity
Voltage Range
V
4.0
Voltage Scaling
(resolution
dependent)
RPS/V
Tracking Rate
Typical (See TABLES 2A & 2B)
4
Scale Factor Error
Scale Factor TC
Reversal Error
Linearity
Zero Offset
Zero Offset TC
Load
%
PPM / deg C
%
% output
mV
V / deg C
k Ohms
10
100
1
0.5
5
15
20 (max.)
200 (max.)
2 (max.)
1 (max.)
15 (max.)
30 (max.)
10 (min.)
TABLE 3. VELOCITY CHARACTERISTICS
GAIN
11 mV/LSB
16 BIT
UP/DOWN
COUNTER
R1
VCO
RV
RB CBW
C
/10
BW
VEL
-VCO
H = 1
-VSUM
VEL
C F
S S
CT
+
-
RESOLVER
INPUT
(
θ)
RS
50 pf
CVCO
DIGITAL
OUTPUT
(
φ)
DEMOD
±1.25 V
THRESHOLD
1
ERROR PROCESSOR
RESOLVER
INPUT
(
θ)
VELOCITY
OUT
DIGITAL
POSITION
OUT (
φ)
VCO
CT
S
A
+ 1
1
B
S
+ 1
10B
H = 1
+
-
e
A2
S
FIGURE 2. TRANSFER FUNCTION BLOCK DIAGRAM #1
FIGURE 3. TRANSFER FUNCTION BLOCK DIAGRAM #2
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