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PDF CF5012 Data sheet ( Hoja de datos )
| Número de pieza | CF5012 | |
| Descripción | Low-current Consumption Crystal Oscillator Module ICs | |
| Fabricantes | Nippon Precision Circuits | |
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CF5012 series
Low-current Consumption Crystal Oscillator Module ICs
OVERVIEW
The CF5012 series are low-current consumption 3rd-harmonic crystal oscillator module ICs. Internal circuit
optimization means these devices have reduced current consumption in comparison with our existing 3rd-har-
monic oscillator devices. The crystal oscillator circuit has a built-in thin-film feedback resistor with good tem-
perature characteristics and built-in capacitors with excellent frequency response, resulting in a stable 3rd-
order overtone oscillator with only the connection of a crystal element.
FEATURES
I 3rd-harmonic oscillation
I 2.7 to 3.6V operating supply voltage range
I 30 to 45MHz recommended operating frequency
range
I Inverter amplifier feedback resistor built-in
I Oscillator capacitors CG , CD built-in
I Output three-state function
(high impedance in standby mode)
I fO output frequency (oscillator frequency)
I 8mA output drive capability (VDD = 2.7V)
I 6.5mA (typ) low current consumption
(VDD = 3V, CL = 15pF, f = 40MHz)
I CMOS output duty level
I Chip form (CF5012×××)
SERIES CONFIGURATION
Version
CF5012ANB
Recommended
operating
frequency [MHz]
30 to 45
gm ratio
1.0
Built-in capacitance [pF]
CG CD
8 15
Note: Recommended operating frequency is not the guaranteed value but is measured using NPC’s standard crystal.
ORDERING INFORMATION
Rf [kΩ]
3.1
Device
CF5012×××–1
Package
Chip form
NIPPON PRECISION CIRCUITS INC.—1
1 page  
MEASUREMENT CIRCUITS
Measurement cct 1
CF5012 series
Measurement cct 4
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Signal
Generator
R1
C1
VDD
XT
VSS
Q
R2
Q output
2.0VP−P , 10MHz sine wave input signal
C1 : 0.001µF
R1 : 50Ω
R2 : 275Ω
VOH
0V
VDD
VSS INHN
RUP = VDD
IPR
IPR
A
Measurement cct 2
Measurement cct 5
VDD
INHN VSS
Q
IOL, IZ
IZ
A
V VOL
Measurement cct 3
VDD
XT
XTN
VSS
A
IRf
Load cct 1
Rf =
VDD
IRf
A IDD
XT VDD
X'tal Q
XTN
VSS INHN
Q output
CL = 15pF
CL
(Including probe capacitance)
NIPPON PRECISION CIRCUITS INC.—5
5 Page | ||
| Páginas | Total 7 Páginas | |
| PDF Descargar | [ Datasheet CF5012.PDF ] | |
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