Philips Semiconductors
Product specification
Phase-locked loop
NE/SE564
TYPICAL PERFORMANCE CHARACTERISTICS (Continued)
V
– PHASE COMPARATOR’S
D
OUTPUT VOLTAGE IN mV
800
VCO FREQUENCY
IN MHz
I
= 200µA
= 0µA
BIAS
600
400
200
I
= 400µA
BIAS
I
1.6
1.4
1.2
I
µ
BIAS = 800 A
BIAS
I
= 800µA
BIAS
I
µ
BIAS = 00 A
f
= 1.0MHz
o
0
–400
–200
200
400
600
800
40
60
100
120
140
160
V
IN mV
D
0 – PHASE
ERROR IN
DEGREES
.8
.6
–200
–400
–600
–800
Variation of the Comparator’s Output Voltage
vs Phase Error and Bias Current (K )
VCO Output Frequency as a Function of
Input Voltage and Bias Current (K )
D
O
SR01028
Figure 4. Typical Performance Characteristics (cont.)
TEST CIRCUIT
+5V
R3
1K
R1
VCO
15
pF
OUYPUT
390
C3
INPUT
9
1
10
16
2
6
7
3
DEMODULATED
OUTPUT
0.1µF
1K
14
13
0.1µF
564
8
R2
C2
C2
4
430pF
C1
R2
5
12
430pF
SR01029
Figure 5. Test Circuit
4
1994 Aug 31
NXP [ NXP ]
