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PDF CF5073 Data sheet ( Hoja de datos )
| Número de pieza | CF5073 | |
| Descripción | VCXO Module ICs | |
| Fabricantes | Nippon Precision Circuits | |
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CF5073 series
VCXO Module ICs with Built-in Varicap
OVERVIEW
The CF5073 series are VCXO ICs with built-in varicap diode. They use a recently developed negative-resis-
tance switching oscillation circuit, at oscillation startup and during normal oscillation, for both good oscilla-
tion startup characteristics and wide pullrange. Furthermore, it employs a CMOS process varicap diode, and
also features all the necessary VCXO structure circuit components on a single chip, forming a VCXO module
with just the connection of an external crystal.
FEATURES
I 3.0 to 3.6V supply voltage range
I 10MHz to 60MHz operating frequency
(varies with version)
I Uses negative-resistance switching function
I Varicap diode built-in
I Frequency divider built-in (varies with version: fO,
fO/2, fO/4, fO/8, fO/16, fO/32)
SERIES LINEUP
I CMOS output level
I 50 ± 10% output duty
I 6mA (min) output drive capability
I 15pF output load capacitance CL
I Standby function
(high impedance in standby mode)
I Chip form (CF5073××)
Version
CF5073A×
CF5073B×
Typical oscillation
frequency1 [MHz]
16
23
CF5073×1
CF5073×22
Output frequency
CF5073×32 CF5073×42
CF5073×52
CF5073×62
CF5073C×
CF5073D×
30
37
fO
fO/2
fO/4
fO/8
fO/16
fO/32
CF5073E×
44
CF5073F×
51
1. The typical oscillation frequency is the oscillation frequency criteria for use when selecting the device version. Note that the oscillation
characteristics and pullability vary with the crystal used and the mounting conditions. Even for the same frequency, the optimal version can vary
with crystal characteristics, so careful evaluation should be exercised when selecting the device version.
2. These versions are produced after receiving a purchase order. Please ask our Sales & Marketing section for further detail.
APPLICATIONS
I VCXO modules
I Communications application
I Networking application
I Broadcasting application
ORDERING INFORMATION
Device
CF5073××−1
Package
Chip form
NIPPON PRECISION CIRCUITS INC.—1
1 page  
CF5073 series
ELECTRICAL CHARACTERISTICS
CF5073A×
www.datasheVeDt4Du.=co3m.0 to 3.6V, VC = 1.65V, VSS = 0V, Ta = –40 to +85°C, unless otherwise noted.
Parameter
HIGH-level output voltage
LOW-level output voltage
Output leakage current
HIGH-level input voltage
LOW-level input voltage
Current consumption
INHN pull-up resistance
Built-in resistance
Built-in capacitance
Symbol
Conditions
VOH Q: Measurement circuit 1, IOH = 6mA
VOL Q: Measurement circuit 1, IOL = 6mA
IZ
Q: Measurement circuit 6, VOH = VDD
INHN = LOW
VOL = VSS
VIH INHN
VIL INHN
CF5073A1
Measurement circuit 2,
IDD
load circuit 1,
CF5073A2
INHN = open, CL = 15pF, CF5073A3
f = 16MHz
CF5073A4 to 6
RUP Measurement circuit 3
Rf Design value, determined by internal wafer
RD pattern
RB1 Measurement circuit 4
RB2
Design value, determined by internal wafer
pattern
CV
Design value, determined VC = 0.3V
by internal wafer pattern VC = 3.0V
CG
CD
Design value, determined by internal wafer
pattern
CC
Min
2.5
–
–
–
0.7VDD
–
–
–
–
–
50
150
0.67
100
50
11.0
2.4
25.5
34
8.5
Rating
Typ
2.75
0.2
–
–
–
–
8
7.5
7
7
100
300
0.96
200
100
14.4
4.0
30
40
10
Max
–
0.4
10
10
–
0.3VDD
20
19.5
19.5
19
180
540
1.25
360
180
17.8
5.6
34.5
46
11.5
Unit
V
V
µA
µA
V
V
mA
mA
mA
mA
kΩ
kΩ
kΩ
kΩ
kΩ
pF
pF
pF
pF
pF
NIPPON PRECISION CIRCUITS INC.—5
5 Page 
CF5073 series
SWITCHING CHARACTERISTICS
VDD = 3.0 to 3.6V, VC = 1.65V, VSS = 0V, Ta = –40 to +85°C, unless otherwise noted
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Parameter
Symbol
Conditions
Rating1
Min Typ Max
Unit
Output rise time
Output fall time
Output duty cycle
Output disable delay time
Output enable delay time
tr1
Measurement circuit 2, load circuit 1,
0.1VDD → 0.9VDD, CL = 15pF
–
2.5
6
ns
tf1
Measurement circuit 2, load circuit 1,
0.9VDD → 0.1VDD, CL = 15pF
–
2.5
6
ns
Duty
Measurement circuit 2, load circuit 1,
VDD = 3.3V, Ta = 25°C, CL = 15pF
40
50
60
%
tPLZ Measurement circuit 5, load circuit 1,
tPZL VDD = 3.3V, Ta = 25°C, CL ≤ 15pF
–
–
– 100 ns
– 100 ns
1. The switching characteristics apply for normal output waveforms. Note that, depending on the matching of the CF5073 series version and crystal,
normal waveform output may not be continuous.
Current consumption and Output waveform with NPC’s standard crystal
C0
L1 C1 R1
f [MHz]
30
R1 [Ω]
7.06
L1 [mH]
2.25
C1 [fF]
12.5
C0 [pF]
3.11
FUNCTIONAL DESCRIPTION
Standby Function
When INHN goes LOW, the Q output pin becomes high impedance.
INHN
HIGH (or open)
LOW
Q
Any fO, fO/2, fO/4, fO/8, fO/16, or fO/32
High impedance
Oscillator
Operating
Operating
NIPPON PRECISION CIRCUITS INC.—11
11 Page | ||
| Páginas | Total 14 Páginas | |
| PDF Descargar | [ Datasheet CF5073.PDF ] | |
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