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參數(shù)資料
| 型號： | PG001 |
| 廠商： | Allegro MicroSystems, Inc. |
| 英文描述： | PARALLEL-TO-SERIAL DATA CONVERTER |
| 中文描述： | 并行到串行數(shù)據(jù)轉(zhuǎn)換器 |
| 文件頁數(shù)： | 9/12頁 |
| 文件大?。?/td> | 179K |
| 代理商： | PG001 |
PG001M
PARALLEL-TO-SERIAL
DATA CONVERTER
The clock input frequency limit is derived from the
figure on page 3. The minimum period for the clock pulse
HIGH is 4.5
μ
s, plus a minimum LOW interval of 0.5
μ
s;
this limits the upper clock frequency to
≤
200 kHz. Updat-
ing the operating mode of the controller IC requires only
one clock period (
≥
5
μ
s), and the five I/O lines on the bus
remain unchanged until a signal is required to change the
operating mode, reverse direction, vary torque, etc.
One technique to free
μ
P I/O lines for shared functions
is depicted in figure 6. The I/O lines required (without
latches) are then transformed into three 'dedicated' logic
inputs; a STROBE is added, and CLOCK and MONITOR
retained. CLOCK, RESET, MODE SELECT
1
, MODE
SELECT
2
, and VECTOR CONTROL now connect to a
bus.
Figure 5 — Microstepping (1/8
th
-Step) and Quarter-Step Modes
RESET
CLOCK
IN
CCW/CW
MODE
SELECT
MODE
SELECT
VECTOR
CONTROL
CLOCK
OUT
SERIAL
DATAA
SERIAL
DATAB
STROBE
MONITOR
71.4
55.5
40
20
0
20
40
55.5
71.4
83
91
100
100
100
91
83
71.4
40
0
40
71.4
91
100
91
71.4
71.4
83
91
100
100
100
91
83
71.4
55.5
40
20
0
20
40
55.5
71.4
91
100
91
71.4
40
0
40
71.4
71.4
55.5
0
-20
-40
-55.5
-71.4
-83
-91
-100
-100
-100
-91
-83
-71.4
-40
0
71.4
91
100
91
71.4
71.4
83
91
100
100
100
91
83
71.4
55.5
0
-20
-40
-55.5
-71.4
-91
-100
-91
-71.4
-40
0
71.4
Dwg. WK-006-1
1/8-STEP MODE
1/4-STEP MODE
20
20
40
40
40
40
PER CENT
OUTA
B
FIRST QUADRANT
SECOND QUADRANT
THIRD QUADRANT
FOURTH QUADRANT
FIRST QUADRANT
PER CENT
OUT
1
2
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| PG0015.104NLT | 功能描述:固定電感器 IND RoHS:否 制造商:AVX 電感:10 uH 容差:20 % 最大直流電流:1 A 最大直流電阻:0.075 Ohms 工作溫度范圍:- 40 C to + 85 C 自諧振頻率:38 MHz Q 最小值:40 尺寸:4.45 mm W x 6.6 mm L x 2.92 mm H 屏蔽:Shielded 端接類型:SMD/SMT 封裝 / 箱體:6.6 mm x 4.45 mm |
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| PG0015.124NLT | 功能描述:固定電感器 IND RoHS:否 制造商:AVX 電感:10 uH 容差:20 % 最大直流電流:1 A 最大直流電阻:0.075 Ohms 工作溫度范圍:- 40 C to + 85 C 自諧振頻率:38 MHz Q 最小值:40 尺寸:4.45 mm W x 6.6 mm L x 2.92 mm H 屏蔽:Shielded 端接類型:SMD/SMT 封裝 / 箱體:6.6 mm x 4.45 mm |
| PG0015.152NLT | 制造商:Pulse Electronics Corporation 功能描述:Ind Power Unshielded Wirewound 1.5uH 20% 11A T/R 制造商:Pulse Electronics Corporation 功能描述:Inductor Power Unshielded Wirewound 1.5uH 20% 11A 8mOhm DCR T/R |
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