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
ꢀ 3rd-harmonic oscillation
ꢀ Standby function
ꢀ f output frequency (oscillator frequency)
ꢀ 1.6 to 2.0V operating supply voltage range
ꢀ 30 to 70MHz recommended operating frequency
range
O
ꢀ 8mA output drive capability (V = 1.6V)
DD
ꢀ CMOS output duty level
ꢀ Inverter amplifier feedback resistor built-in
ꢀ Chip form (CF5011×××)
ꢀ Oscillator capacitors C , C built-in
G
D
SERIES CONFIGURATION
Recommended
operating
frequency [MHz]
Built-in capacitance [pF]
Version
gm ratio
R [kΩ]
Standby function
f
C
C
D
G
CF5011ALA
30 to 40
40 to 50
50 to 60
60 to 70
30 to 40
40 to 50
50 to 60
60 to 70
1.0
1.0
1.0
1.5
1.0
1.0
1.0
1.5
14
8
16
16
16
16
16
16
16
16
4.0
3.9
2.2
2.7
4.0
3.9
2.2
2.7
Yes
Yes
Yes
Yes
No
1
CF5011ALB
CF5011ALC
CF5011ALD
1
1
8
8
CF5011ANA
CF5011ANB
14
8
No
CF5011ANC
8
No
CF5011AND
8
No
1. Under development
Note: Recommended operating frequency is not the guaranteed value but is measured using NPC’s standard crystal.
ORDERING INFORMATION
Device
Package
CF5011×××–1
Chip form
NIPPON PRECISION CIRCUITS INC.—1