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參數(shù)資料
| 型號： | SDC-14604-152S |
| 廠商： | DATA DEVICE CORP |
| 元件分類： | 位置變換器 |
| 英文描述： | SYNCHRO OR RESOLVER TO DIGITAL CONVERTER, DMA28 |
| 封裝： | DDIP-28 |
| 文件頁數(shù)： | 4/6頁 |
| 文件大?。?/td> | 237K |
| 代理商： | SDC-14604-152S |
NO FALSE 180° HANGUP
This feature eliminates the “false 180° reading” during instanta-
neous 180° step changes; this condition most often occurs when
the input is “electronically switched” from a digital-to-synchro
converter. If the “MSB” (or 180° bit) is “toggled” on and off, a con-
verter without the “false 180° hangup” feature may fail to
respond.
The condition is artificial, as a “real” synchro or resolver can not
change its output 180° instantaneously. The condition is most
often noticed during wraparound verification tests, simulations,
or troubleshooting.
4
1.48 (MAX)
(37.59)
PIN 1 DENOTED BY
CONTRASTING
COLORED BEAD
128
1.300
(33.02)
0.100 (TYP)
(2.54)
0.018±0.002 DIA (TYP)
(0.46 ±0.05)
0.250 ±0.010 (TYP)
(6.35 ±0.25)
0.200 (MAX)
(5.08)
PIN NUMBERS ARE
FOR REF. ONLY
15
14
0.78 (MAX)
(19.81)
0.600
(15.24)
Dimensions in inches (mm).
BOTTOM
VIEW
SIDE
VIEW
,
ENABLE
150 ns MAX
DATA
VALID
100 ns MAX
HIGH Z
,,,,,,
DATA
VALID
500 ns MAX
INHIBIT
FIGURE 3. INHIBIT TIMING
FIGURE 4. ENABLE TIMING
FIGURE 5. SDC-14600/05 MECHANICAL OUTLINE
TABLE 2. PINOUT (28 PIN)*
1
A GND(D)
S1A(R)
S1A(S)
28 +REF
(+Reference Input)
2
+COS(D)
S2A(R)
S2A(S)
27 -REF
(-Reference Input)
3
+SIN(D)
S3A(R)
S3A(S)
26 -5 V
(Power Supply)
4
N.C.
S4A(R)
N.C.
25 VEL A
(Velocity Output)
5
Bit 1(MSB)
/Bit 9
24 EM A
(Enable MSBs)
6
Bit 2
/Bit 10
23 EL A
(Enable LSBs)
7
Bit 3
/Bit 11
22 GND
(Ground)
8
Bit 4
/Bit 12
21 +5 V
(Power Supply)
9
Bit 5
/Bit 13
20 EL B
(Enable LSBs)
10 Bit 6
/Bit 14
19 EM B
(Enable MSBs)
11 Bit 7
/Bit 15**
18
N.C.
S4B(R)
N.C.
12 Bit 8
/Bit 16**
17
+SIN(D)
S3B(R)
S3B(S)
13 INH
(Inhibit)
16
-COS(D)
S2B(R)
S2B(S)
14 VEL B
(Velocity Output)
15
A GND(D)
S1B(R)
S1B(S)
* Note: (S) = Synchro; (R) = Resolver; (D) = 2 V Resolver Direct
** Note: SDC-14605 Series only
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