CS289 datasheet(3/6 Pages) CHERRY

Il numero della parte	CS289

Spiegazioni elettronici	20mA Air-Core Tachometer Drive Circuit

PDF	6 Pages

Scroll/Zoom	100%

Produttore elettronici	CHERRY [Cherry Semiconductor Corporation]

Homepage	http://www.cherrycorp.com/

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Typical Performance Characteristics

SINE OUTPUT

VP COS Q

VP SIN Q

COSINE

OUTPUT

45û

90û

135û

180û

225û

270û

2.1

7.1

Relationship of E

Q, Q and Frequency

F/VOUT = 2.0V + FREQ X CT X RT X VREG

Frequency/Output Angle (

°)

Output Angle in Polar Form

Charge Pump Output Voltage

-4.5

-3.5

-2.5

-1.5

1.5

2.5

3.5

4.5

4.5V

45û

90û

135û

180û

225û

270û

VCOS

VSINE

2.1

3.8

5.45

7.1

Tachometer Angular Deflection (

°)

Function Generator Output Voltage

Package Pin Description: continued

PACKAGE PIN #

PIN SYMBOL

FUNCTION

Note 1: Vsine measured Vsine to VZ. VCOS measured VCOS to VZ. All other voltages specified are measured to ground.

Note 2: Max PWR dissipation ²VCC X ICC - (V2 Isine + V12 ICOS).

20L SO

14L PDIP

SQOUT

Buffered square wave output signal.

SQIN

Speed or RPM input signal.

VREG

Voltage regulator output.

VCOS

Cosine output signal.

VCC

Supply voltage.

Pwr Gnd

Power Ground connection.

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