CA3228 datasheet(3/9 Pages) HARRIS

部件名	CA3228

功能描述	Speed Control System with Memory

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制造商	HARRIS [Harris Corporation]

网页	http://www.harris.com

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3 / 9 page

10-33

Speciﬁcations CA3228

Functional Block Diagram

Memory Set Error

V6 - V10

6, 10

-77

67

mV

Deadband Range (VAC and VENT Outputs

Off)

VDB

21, 22

Sweep Pin 19,

Voltage at 1V/sec

0.96

1.43

V

Control Amplifier Gain

ACNTL

16, 19

ACNTL = V19/V16

74

-

Ratio

D/A Voltage Range

VM

6

Set Mode

6

7.50

V

Electrical Speciﬁcations

TA = +25

oC, V

CC = 8.20V, Unless Otherwise Speciﬁed (Refer to Figures 2 and 3) (Continued)

PARAMETERS

SYMBOLS

TEST PIN

TEST CONDITIONS

MIN

MAX

UNITS

3

4

5

12

8

9

10

3

11

6

7

23

21

22

19

20

18

16

14

15

17

24

1 GROUND

RESUME

DETECTOR

OVER SPEED

DETECTOR

ALIGN

“A”

“D”

“B” MODE

SW

“C”

ALIGN

ACCELERATE

CAPACITOR

ACCELERATE

RESISTOR

ACCEL.

RATE AMP

“E”

V ERROR

CONTROL AMP. (-)

CONTROL AMP. (+)

CONTROL AMP.

OUTPUT

VACUUM

CONTROL

VENT

CONTROL

OUTPUT

GATE

VENT

VAC

CONTROL AMP.

+

_

ERROR AMP.

0.45V

REDUNDANT

BRAKE

CONTROL

LOGIC

I2 L

TOGL

ON

OFF

COAST

ACCEL

RESUME

COMMAND

DECODER

AND

DELAY

VCC

OSC.

BRAKE

F/V

CURRENT

SENSOR

CONVERTER

SENSE

MINIMUM

SPEED

SENSOR

ANALOG TO

DIGITAL TO

ANALOG

CONVERTER

VS

VM

VS

CURRENT

SENSE

V MEMORY

F/V FILTER

VS

F/V OUT

SPEED

SENSOR INPUT

BRAKE INPUT

OSCILLATOR

COMMAND DELAY

DRIVER COMMAND

VCC

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