December 1990 7
Philips Semiconductors Product specification
Phase-locked-loop with lock detector 74HC/HCT7046A
Fig.5 Logic diagram.
Fig.6 Phase comparator 1: average output
voltage versus input phase difference:
V
DEMOUT
V
PC1OUT
V
CC
π
-----------
φ
SIGIN
φ
COMPIN
()==
φ
DEMOUT
φ
SIGIN
φ
COMPIN
=
Fig.7 Typical waveforms for PLL using phase
comparator 1, loop locked at f
o
.
December 1990 8
Philips Semiconductors Product specification
Phase-locked-loop with lock detector 74HC/HCT7046A
Fig.8 Phase comparator 2: average output
voltage versus input phase difference:
V
DEMOUT
V
PC2OUT
=
V
CC
4π
-----------
φ
SIGIN
φ
COMPIN
()=
φ
DEMOUT
φ
SIGIN
φ
COMPIN
()
˙
.=
Fig.9 Typical waveforms for PLL using phase
comparator 2, loop locked at f
o.
December 1990 9
Philips Semiconductors Product specification
Phase-locked-loop with lock detector 74HC/HCT7046A
RECOMMENDED OPERATING CONDITIONS FOR 74HC/HCT
RATINGS
Limiting values in accordance with the Absolute Maximum System (IEC 134)
Voltages are referenced to GND (ground = 0 V)
SYMBOL PARAMETER
74HC 74HCT
UNIT CONDITIONS
min. typ. max. min. typ. max.
V
CC
DC supply voltage 3.0 5.0 6.0 4.5 5.0 5.5 V
V
CC
DC supply voltage if VCO section is
not used
2.0 5.0 6.0 4.5 5.0 5.5 V
V
I
DC input voltage range 0 V
CC
0V
CC
V
V
O
DC output voltage range 0 V
CC
0V
CC
V
T
amb
operating ambient temperature range 40 +85 40 +85 °C see DC and AC
CHARACTER-
ISTICS
T
amb
operating ambient temperature range 40 +125 40 +125 °C
t
r
, t
f
input rise and fall times (pin 5)
6.0
1000
500
400
6.0 500 ns
V
CC
= 2.0 V
V
CC
= 4.5 V
V
CC
= 6.0 V
SYMBOL PARAMETER MIN. MAX. UNIT CONDITIONS
V
CC
DC supply voltage 0.5 +7V
±I
IK
DC input diode current 20 mA for V
I
<−0.5 V or V
I
> V
CC
+ 0.5 V
±I
OK
DC output diode current 20 mA for V
O
<−0.5 V or V
O
> V
CC
+ 0.5 V
±I
O
DC output source or sink current 25 mA for 0.5 V < V
O
< V
CC
+ 0.5 V
±I
CC
;
±I
GND
DC V
CC
or GND current
50 mA
T
stg
storage temperature range 65 +150 °C
P
tot
power dissipation per package
plastic DIL 750 mW
for temperature range: 40 to +125 °C
74HC/HCT
above +70 °C: derate linearly with 12 mW/K
plastic mini-pack (SO) 500 mW above +70 °C: derate linearly with 8 mW/K

74HC7046AD,118

Mfr. #:
Manufacturer:
NXP Semiconductors
Description:
Phase Locked Loops - PLL PHASE LOCKED LOOP
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
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