CF5011 series
1.8V Crystal Oscillator Module ICs
OVERVIEW
The CF5011 series are low-voltage crystal oscillator module ICs that operate at 1.8V. The crystal oscillator cir-
cuit and output buffer employ a low-voltage CMOS process operating at 1.8V. The crystal oscillator circuit has
a built-in thin-film feedback resistor with good temperature characteristics and built-in capacitors with excel-
lent frequency response, making possible a stable 3rd-harmonic oscillator with only the addition of a crystal
element.
FEATURES
I
I
I
I
I
3rd-harmonic oscillation
1.6 to 2.0V operating supply voltage range
30 to 70MHz recommended operating frequency
range
Inverter amplifier feedback resistor built-in
Oscillator capacitors C
G
, C
D
built-in
I
I
I
I
I
Standby function
f
O
output frequency (oscillator frequency)
8mA output drive capability (V
DD
= 1.6V)
CMOS output duty level
Chip form (CF5011
×××
)
SERIES CONFIGURATION
Version
CF5011ALA
CF5011ALB
1
CF5011ALC
1
CF5011ALD
1
CF5011ANA
CF5011ANB
CF5011ANC
CF5011AND
1. Under development
Note: Recommended operating frequency is not the guaranteed value but is measured using NPC’s standard crystal.
Recommended
operating
frequency [MHz]
30 to 40
40 to 50
50 to 60
60 to 70
30 to 40
40 to 50
50 to 60
60 to 70
Built-in capacitance [pF]
gm ratio
C
G
1.0
1.0
1.0
1.5
1.0
1.0
1.0
1.5
14
8
8
8
14
8
8
8
C
D
16
16
16
16
16
16
16
16
R
f
[k
Ω
]
4.0
3.9
2.2
2.7
4.0
3.9
2.2
2.7
Standby function
Yes
Yes
Yes
Yes
No
No
No
No
ORDERING INFORMATION
Device
CF5011
×××
–1
Package
Chip form
NIPPON PRECISION CIRCUITS INC.—1
NPC [ NIPPON PRECISION CIRCUITS INC ]
