CS4101 datasheet(3/8 Pages) CHERRY

No. de pieza	CS4101

Descripción Electrónicos	Precision Air-Core Tach/Speedo Driver with Separate Function Generator Input

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Fabricante Electrónico	CHERRY [Cherry Semiconductor Corporation]

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PACKAGE LEAD #

LEAD SYMBOL

FUNCTION

Electrical Characteristics: continued

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

s Function Generator Section: continued

Function Generator Error

13.1V ² VCC ² 16V

-2.5

0

+2.5

deg

Function Generator Error

13.1V ² VCC ² 11V

-1

0

+1

deg

Function Generator Error

13.1V ² VCC ² 9V

-3

0

+3

deg

Function Generator Error

25¡C ² TA ² 80¡C

-3

0

+3

deg

Function Generator Error

25¡C ² TA ² 105¡C

-5.5

0

+5.5

deg

Function Generator Error

Ð40¡C ² TA ² 25¡C

-3

0

+3

deg

Function Generator Gain

TA = 25¡C Q vs F/VOUT

60

77

95

¡/V

Package Lead Description

Typical Performance Characteristics

0

45

90

135

180

225

270

315

Degrees of Deflection (

°)

7

6

5

4

3

2

1

0

-1

-2

-3

-4

-5

-6

-7

COS

SIN

045

90

135

180

225

270

315

Frequency/Output Angle (

°)

7

6

5

4

3

2

1

0

Figure 2: Charge Pump Output Voltage vs Output Angle

Figure 1: Function Generator Output Voltage

vs Degrees of Deflection

F/VOUT = 2.0V + 2 FREQ ´ CT ´ RT ´ (VREG - 0.7)

20L

1

CP+

Positive input to charge pump.

2SQOUT

Buffered square wave output signal.

3

FREQIN

Speed or rpm input signal.

4

BIAS

Test point or Zero adjustment.

5, 6, 15, 16

Gnd

Ground Connections.

7, 14, 17

NC

No Connection.

8

COS+

Positive cosine output signal.

9

COS-

Negative cosine output signal.

10

VCC

Ignition or battery supply voltage.

11

FGEN

Function generator input signal.

12

SIN-

Negative sine output signal.

13

SIN+

Positive sine output signal.

18

VREG

Voltage regulator output.

19

F/VOUT

Output voltage proportional to input signal frequency.

20

CP-

Negative input to charge pump.

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