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
I
I
I
I
I
3rd-harmonic oscillation
2.7 to 3.6V operating supply voltage range
30 to 45MHz recommended operating frequency
range
Inverter amplifier feedback resistor built-in
Oscillator capacitors C
G
, C
D
built-in
Output three-state function
(high impedance in standby mode)
I
I
I
I
I
f
O
output frequency (oscillator frequency)
8mA output drive capability (V
DD
= 2.7V)
6.5mA (typ) low current consumption
(V
DD
= 3V, C
L
= 15pF, f = 40MHz)
CMOS output duty level
Chip form (CF5012
×××
)
SERIES CONFIGURATION
Version
CF5012ANB
Recommended
operating
frequency [MHz]
30 to 45
Built-in capacitance [pF]
gm ratio
C
G
1.0
8
C
D
15
R
f
[k
Ω
]
3.1
Note: Recommended operating frequency is not the guaranteed value but is measured using NPC’s standard crystal.
ORDERING INFORMATION
Device
CF5012
×××
–1
Package
Chip form
NIPPON PRECISION CIRCUITS INC.—1
NPC [ NIPPON PRECISION CIRCUITS INC ]
