December 1990 4
Philips Semiconductors Product specification
Phase-locked-loop with lock detector 74HC/HCT7046A
QUICK REFERENCE DATA
GND = 0 V; T
amb
=25°C;
Notes
1. Applies to the phase comparator section only (VCO disabled).
For power dissipation of VCO and demodulator sections see Figs 20, 21 and 22.
2. C
PD
is used to determine the dynamic power dissipation (P
D
in µW):
P
D
=C
PD
× V
CC
2
× f
i
+∑(C
L
× V
CC
2
× f
o
) where:
f
i
= input frequency in MHz
f
o
= output frequency in MHz
∑ (C
L
× V
CC
2
× f
o
) = sum of outputs
C
L
= output load capacitance in pF
V
CC
= supply voltage in V
ORDERING INFORMATION
See
“74HC/HCT/HCU/HCMOS Logic Package Information”
.
SYMBOL PARAMETER CONDITIONS
TYPICAL
UNIT
HC HCT
f
o
VCO centre frequency C1 = 40 pF; R1 = 3 kΩ; V
CC
= 5 V 19 19 MHz
C
I
input capacitance (pin 5) 3.5 3.5 pF
C
PD
power dissipation capacitance per package notes 1 and 2 24 24 pF
