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74HC7046AD,118

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P24P25-P27P28-P30P31-P33P34-P36P37-P38
December 1990 22
Philips Semiconductors Product specification
Phase-locked-loop with lock detector 74HC/HCT7046A
Fig.16 Frequency stability of the VCO as a function of ambient temperature with supply voltage as a parameter.
 without offset (R2 = ∞): (a) R1 = 3 kΩ; (b) R1 = 10 kΩ; (c) R1 = 300 kΩ.
- - - - with offset (R1 = ∞): (a) R2 = 3 kΩ; (b) R2 = 10 kΩ; (c) R2 = 300 kΩ.
In (b), the frequency stability for R1 = R2 = 10 kΩ at 5 V is also given (curve A). This curve is set by the total VCO bias current, and is
not simply the addition of the two 10 kΩ stability curves. C1 = 100 pF; V
VCO IN
= 0.5 V
CC
.
handbook, halfpage
MSB710
T
amb
(
o
C)
0
150100500−50
−25
−20
−15
−10
−5
5
10
15
20
25
∆
f
(%)
5 V
6 V
3 V
4.5 V
5 V
6 V
V =
CC
3 V
(a)
handbook, halfpage
MSB711
T ( C)
amb
0
f
(%)
o
15010050050
25
20
15
10
5
5
10
15
20
25
∆
5 V
6 V
3 V
5 V
6 V
V =
CC
3 V
(b)
A
handbook, halfpage
MSB712
T ( C)
amb
0
f
(%)
o
15010050050
25
20
15
10
5
5
10
15
20
25
∆
5 V
6 V
(c)
V =
CC
3 V
3 V
6 V
5 V
December 1990 23
Philips Semiconductors Product specification
Phase-locked-loop with lock detector 74HC/HCT7046A
AC WAVEFORMS
Fig.16 Continued.
To obtain optimum temperature stability, C
1
must be a small as possible, but larger than 100 pF.
December 1990 24
Philips Semiconductors Product specification
Phase-locked-loop with lock detector 74HC/HCT7046A
Fig.17 Graphs showing VCO frequency (f
VCO
) as a function of the VCO input voltage (V
VCOIN
).
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P24P25-P27P28-P30P31-P33P34-P36P37-P38

74HC7046AD,118

Mfr. #:
Buy 74HC7046AD,118
Manufacturer:
NXP Semiconductors
Description:
Phase Locked Loops - PLL PHASE LOCKED LOOP
Lifecycle:
New from this manufacturer.
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