CF5005B series
High-frequency Crystal Oscillator Module ICs
OVERVIEW
The CF5005B series are high-frequency crystal oscillator module ICs. They are comprised of an oscillator cir-
cuit and output buffer optimized for operation at 125 to 165MHz. The crystal oscillator circuit has a built-in
thin-film feedback resistor with good temperature characteristics and built-in capacitors with excellent fre-
quency response, making possible a stable 3rd overtone oscillator with only the addition of a crystal element.
FEATURES
I
I
I
I
I
3.0 to 3.6V operating supply voltage range
125 to 165MHz recommended operating fre-
quency range
Inverter amplifier feedback resistor built-in
Oscillator capacitors C
G
, C
D
built-in
Output three-state function (high impedance in
standby mode, oscillator stops)
I
I
I
I
f
O
output frequency (oscillator frequency)
8mA output drive capability (V
DD
= 3.0V)
CMOS output duty level
Chip form (CF5005B
××
)
SERIES CONFIGURATION
Version
CF5005BLA
CF5005BLB
Recommended
operating frequency
range
1
[MHz]
125 to 150
140 to 165
Built-in capacitance [pF]
gm ratio
C
G
1.0
1.0
1
1
C
D
6
3
R
f
[k
Ω
]
2.2
2.2
1. The recommended operating frequency is a yardstick value derived from the crystal used for NPC characteristics authentication. However, the
oscillator frequency band is not guaranteed. Specifically, when used at high frequencies, the characteristics can vary greatly due to crystal charac-
teristics and mounting conditions, so the oscillation characteristics of components must be carefully evaluated.
ORDERING INFORMATION
Device
CF5005B
××
–1
Package
Chip form
SEIKO NPC CORPORATION —1
NPC [ NIPPON PRECISION CIRCUITS INC ]
