CS8191

http://onsemi.com

5

TYPICAL PERFORMANCE CHARACTERISTICS

Figure 2. Function Generator Output Voltage vs.

Degrees of Deflection

Figure 3. Charge Pump Output Voltage vs.

Output Angle

0

45

90

135

180

225

270

315

0

45

90

135

180

225

270

315

–7

–6

–5

–4

–3

–2

–1

0

1

2

3

4

5

6

7

0

1

2

3

4

5

6

7

Frequency/Output Angle (

°)

Degrees of Deflection (

°)

Theoretical Angle (

°)

7.0 V

7.0 V

–7.0 V

–7.0 V

Θ Angle

Q + ARCTAN

VSIN

) * VSIN *

VCOS

) * VCOS *

Figure 4. Output Angle in Polar Form

Figure 5. Nominal Output Deviation

0

45

90

135

180

270

315

225

–1.50

–1.25

–1.00

–0.75

–0.50

–0.25

0.00

0.25

0.50

0.75

1.00

1.25

1.50

COS

SIN

Figure 6. Nominal Angle vs. Ideal Angle (After Calibrating at 180

5)

Nominal Angle (Degrees)

0

5

10

20

25

30

35

40

15

45

15

9

13

17

33

41

29

21

25

37

45

Ideal Degrees

Nominal Degrees

F VOUT + 2.0 V ) 2.0

FREQ

CCP

RT

(VREG * 0.7 V)