74HCT9046A Datasheet, PDF (24/43 Pages) NXP Semiconductors – PLL with bandgap controlled VCO

NXP Semiconductors
74HCT9046A
PLL with band gap controlled VCO
30
f_VCO
(MHz)
20
10
V_CC =
4.5 V
5.5 V
mbd112
30
f_VCO
(kHz)
20
10
mbd113
V_CC =
4.5 V
5.5 V
0
0
2
4
6
V_{VCO_IN} (V)
a. R1 = 4.3 kΩ; C1 = 39 pF.
800
f_VCO
(kHz)
600
V_CC = 5.5 V
4.5 V
mbd120
400
0
0
2
4
6
V_{VCO_IN} (V)
b. R1 = 4.3 kΩ; C1 = 100 nF.
400
f _VCO
(Hz)
300
200
mbd111
4.5 V
frequency
V_CC = 5.5 V
frequency
200
100
0
0
2
4
6
V_{VCO_IN} (V)
0
0
2
4
6
V_{VCO_IN} (V)
c. R1 = 300 kΩ; C1 = 39 pF.
d. R1 = 300 kΩ; C1 = 100 nF.
Fig 23. Graphs showing VCO frequency as a function of the VCO input voltage (V_{VCO_IN})
74HCT9046A_6
Product data sheet
Rev. 06 — 15 September 2009
© NXP B.V. 2009. All rights reserved.
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