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PDF CF5008A1 Data sheet ( Hoja de datos )
| Número de pieza | CF5008A1 | |
| Descripción | VCXO Module IC | |
| Fabricantes | Nippon Precision Circuits Inc | |
| Logotipo |  |
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NIPPON PRECISION CIRCUITS INC.
CF5008A1
VCXO Module IC
OVERVIEW
The CF5008A1 is a VCXO module IC that employs a circuit structure with low parasitic capacitance effects
and a wide frequency range. Built-in components mean that few external components are required to construct
a VCXO.
FEATURES
s Up to 30 MHz operation
s Inverter amplifier feedback resistor built-in
s 8 mA (VDD = 5 V), 4 mA (VDD = 3 V) drive capability
s 2.7 to 5.5 V supply voltage
s Circuit structure with low parasitic capacitance effects
• Direct connection to varicap diodes and crystal
s Few external components required to form a VCXO
s Amplitude limiting resistor Rd built-in
s Chip form (CF5008A1)
SERIES CONFIGURATION
Version
CF5008A1
Output frequency
fO
Input level
CMOS
Output duty level
CMOS
Standby output state
High impedance
ORDERING INFORMATION
Device
CF5008A1–2
Package
Chip form
NIPPON PRECISION CIRCUITS—1
1 page  
CF5008A1
Electrical Characteristics
VDD = 4.5 to 5.5 V, VSS = 0 V, Ta = −20 to 80 °C unless otherwise noted.
Parameter
HIGH-level output voltage
L OW -level output voltage
Output leakage current
HIGH-level input voltage
L OW -level input voltage
Current consumption
INH pull-up resistance
Feedback resistance
Built-in resistance
Built-in capacitance
Symbol
Condition
VOH Q: Measurement cct 1, IOH = 8 mA, VDD = 4.5 V
VOL Q: Measurement cct 1, IOL = 8 mA, VDD = 4.5 V
Q: Measurement cct 2, INH = LOW,VOH = VDD
IZ
Q: Measurement cct 2, INH = LOW,VOL = VSS
VIH INH
VIL INH
ID D I N H = open, Measurement cct 3, load cct 1, CL = 15 p F, f = 30 M H z
RUP Measurement cct 4
R f Design value, determined by the internal wafer pattern
Rd
Design value, determined by the internal wafer pattern
Rc
RB1 Measurement cct 5
RB2 Measurement cct 6
CG
C D Design value, determined by the internal wafer pattern
CC
min
4.0
–
–
–
0.8VDD
–
–
50
–
–
–
–
–
–
–
–
Rating
typ max
4.2 –
0.3 0.4
– 10
– 10
––
– 0.2VDD
28 65
– 150
150 –
450 –
0–
100 –
50 –
20 –
10 –
70 –
Unit
V
V
µA
V
V
mA
kΩ
kΩ
Ω
Ω
kΩ
kΩ
pF
pF
pF
Switching Characteristics
VDD = 2.7 to 5.5 V, VSS = 0 V, Ta = −20 to 80 °C unless otherwise noted.
Parameter
Symbol
Condition
Rating
Unit
min typ max
Output rise time
Output fall time
Output duty cycle1
Output disable delay time
Output enable delay time
tr1
Measurement cct 3, load cct 1,
0.1VDD to 0.9VDD , CL = 15 pF
VDD = 2.7 to 3.6 V
VDD = 4.5 to 5.5 V
tf1
Measurement cct 3, load cct 1,
0.9VDD to 0.1VDD , CL = 15 pF
VDD = 2.7 to 3.6 V
VDD = 4.5 to 5.5 V
Duty
Measurement cct 3, load cct 1, Ta = 25 °C ,
C L = 15 p F, f = 3 2 M H z
VDD = 3.0 V
VDD = 5.0 V
tP L Z
Measurement cct 7, load cct 1, Ta = 25 °C , CL ≤ 15 p F
tP Z L
–
–
–
–
42
42
–
–
38
ns
2.5 6
38
ns
2.5 6
– 58
%
– 58
– 100 ns
– 100 ns
1. Determined by the lot monitor.
Current consumption and Output waveform with NPC’s standard crystal
Cb
L Ca R
f (MHz)
30
R (Ω)
17.2
L (mH)
4.36
Ca (fF)
6.46
Cb (pF)
2.26
NIPPON PRECISION CIRCUITS—5
5 Page | ||
| Páginas | Total 10 Páginas | |
| PDF Descargar | [ Datasheet CF5008A1.PDF ] | |
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