Philips Semiconductors

Product specification

NE/SE564

Phase-locked loop

1994 Aug 31

4

TYPICAL PERFORMANCE CHARACTERISTICS (Continued)

IBIAS = 200µA

VCO FREQUENCY

IN MHz

1.6

1.4

1.2

0

fo = 1.0MHz

–400

–200

200

400

600

800

VDIN mV

.8

.6

40

60

100

120

140

160

0 – PHASE

ERROR IN

DEGREES

800

600

400

200

–200

–400

–600

–800

VD – PHASE COMPARATOR’S

OUTPUT VOLTAGE IN mV

IBIAS = 800µA

IBIAS = 400µA

IBIAS = 0µA

Variation of the Comparator’s Output Voltage

VCO Output Frequency as a Function of

SR01028

Figure 4. Typical Performance Characteristics (cont.)

TEST CIRCUIT

+5V

INPUT

C3

0.1

µF

1K

C2

C2

R2

430pF

R2

430pF

R1

R3

1

2

10

16

9

3

14

13

12

8

5

4

7

6

564

15

pF

VCO

OUYPUT

390

DEMODULATED

OUTPUT

C1

0.1

µF

1K

SR01029

Figure 5. Test Circuit