参数资料
型号: SD-14551DX-552S
厂商: DATA DEVICE CORP
元件分类: 位置变换器
英文描述: SYNCHRO OR RESOLVER TO DIGITAL CONVERTER, CQIP34
封装: CERAMIC, DIP-34
文件页数: 9/12页
文件大小: 115K
代理商: SD-14551DX-552S
6
Data Device Corporation
www.ddc-web.com
SD-14550 Series
Rev. H
shown in FIGURE 4, output data is valid 150 nanoseconds max-
imum after the application of a low-going enable pulse. The tri-
state data bus returns to the high impedance state 100 nanosec-
onds maximum after the rising edge of the enable signal.
DYNAMIC PERFORMANCE
A type II servo loop (Kv =
∞) and very high acceleration con-
stants give the SD-14550 superior dynamic performance.
TRANSFER FUNCTION AND BODE PLOT
The dynamic performance of the converter can be determined
from its functional block diagram (FIGURE 1), its transfer func-
tion block diagram (FIGURE 5), and its bode plots (open and
closed loop - FIGURE 6). Values for the transfer function block
can be obtained from TABLE 3.
The open loop transfer function is as follows:
where A is the gain coefficient
and B is the frequency of lead compensation
2
S
A
+1
(
)
B
2
S
+1
(
)
10B
Open Loop Transfer Function =
-12
db/oct
GAIN = 4
BA
2A
-6 db/oct
10B
ω (rad/sec)
2A
2 2 A
ω (rad/sec)
f
= BW =
3db
2 A (Hz)
π
CLOSED LOOP
OPEN LOOP
- GAIN = 0.4
(B=A/2)
(CRITICALLY DAMPED)
FIGURE 6. BODE PLOTS
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
2
S
A
+1
(
)
B
2
S
+1
(
)
10B
Open Loop Transfer Function =
WHERE:
2
A = A A
1
2
FIGURE 5. TRANSFER FUNCTION BLOCK DIAGRAM
TABLE 3. DYNAMIC CHARACTERISTICS
DEVICE TYPE
60 Hz
“S” OPTION
Input Frequency
Bandwidth (Closed Loop)
Ka
A1
A2
A
B
Hz
1/s2
1/s
47 - 5K
15
830
0.17
5K
29
14.5
1K - 5K
150
110K
2.47
44.4K
333
166
RESOLUTION
BITS
16
14
12
10
16
14
12
10
Tracking Rate (rps)
typical
minimum
Acceleration ( 1 LSB lag)
Settling Time (179° step max)
rps
deg/s2
msec
0.5
0.4
11.3
2500
2
1.6
45
1100
8
6.4
180
500
32
25.6
720
400
2.5
2
610
232
10
8
2440
150
40
32
9760
78
160
128
39K
51
400 Hz
360 - 5K
56
53K
0.41
41K
130
81
16
14
12
10
2.5
2
93
360
10
8
372
180
40
32
1490
100
160
128
5950
90
TABLE 4. ACCURACY/RESOLUTION
VERSION
RESOLUTION VS ACCURACY
(In LSB’s - See Note 2)
10 BIT
12 BIT
14 BIT
16 BIT
SD-1455X-XX
ACCURACY
(minutes)
See Note 1
4 +1 LSB
2 +1 LSB
2
4
3
13
7
SD-1455X-XS
(“S” option)
* 1.3 minute (4 LSB) accuracy available for “S” option only.
Inclusive of 1 bit of jitter.
Note 1: Accuracy Base measured in 16 bit mode.
Note 2: Accuracy in Resolution rounded up to next LSB:
LSB in 16 Bit mode = 0.3 minutes
LSB in 14 Bit mode = 1.3 minutes
LSB in 12 bit mode = 5.3 minutes
LSB in 10 Bit mode = 21.1 minutes
4 +1 LSB
2 +1 LSB
1 +1 LSB
2
4
3
2
13
7
4*
ACCURACY AND RESOLUTION
TABLE 4 lists the total accuracy including quantitation for the var-
ious resolutions and accuracy grades.
UNITS
PARAMETER
相关PDF资料
PDF描述
SD-14551DX-552W SYNCHRO OR RESOLVER TO DIGITAL CONVERTER, CQIP34
SD-14551DX-552 SYNCHRO OR RESOLVER TO DIGITAL CONVERTER, CQIP34
SD-14551DX-554K SYNCHRO OR RESOLVER TO DIGITAL CONVERTER, CQIP34
SD-14551DX-554Q SYNCHRO OR RESOLVER TO DIGITAL CONVERTER, CQIP34
SD-14551DX-554W SYNCHRO OR RESOLVER TO DIGITAL CONVERTER, CQIP34
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