CF5017ALD Просмотр технического описания (PDF) - Nippon Precision Circuits
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CF5017ALD Datasheet PDF : 10 Pages
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CF5017 series
3rd Overtone Crystal Oscillator Module ICs
OVERVIEW
The CF5017 series are 3rd overtone crystal oscillator ICs. Devices are available that provide 3rd overtone
oscillation in the range 30MHz to 80MHz. The oscillator circuit is comprised of feedback resistors with good
temperature characteristics and oscillation capacitors with excellent frequency response for stable 3rd overtone
oscillation. Also, the chip layout is optimized, resulting in a large reduction in chip surface area compared to
existing devices.
FEATURES
I 2.7 to 5.5V operating supply voltage range
I 30MHz to 80MHz oscillation frequency range
(varies with version)
I – 40 to 85°C operating temperature range
I Oscillation capacitors built-in
• CG = 8pF, CD = 15pF
I Inverter amplifier feedback resistor built-in
I Standby function
• High impedance in standby mode, oscillator stops
I Low standby current
• Power-saving pull-up resistor built-in
I fO output frequency (oscillation frequency)
I Output drive capability
• 8mA (VDD = 2.7V)
• 16mA (VDD = 4.5V)
I CMOS output duty level (1/2VDD)
I 50 ± 5% output duty (at 1/2VDD)
I 30pF output load
I Molybdenum-gate CMOS process
I Chip form (CF5017AL×)
SERIES CONFIGURATION
Version
Operating
supply voltage
range [V]
Recommended operating
frequency range1 [MHz]
3V operation 5V operation
gm ratio
Built-in capacitance [pF]
CG
CD
Rf
[kΩ]
CF5017ALA
2.7 to 5.5
30 to 36
30 to 44
0.25
3.5
CF5017ALB
2.7 to 5.5
36 to 50
40 to 60
0.50
3.5
8
15
CF5017ALC
2.7 to 5.5
44 to 60
60 to 80
0.75
3.5
CF5017ALD
2.7 to 3.6
53 to 80
–
1.00
3.0
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, the characteristics can vary greatly due to crystal characteristics and mounting condi-
tions, so the oscillation characteristics of components must be carefully evaluated.
ORDERING INFORMATION
Device
CF5017AL×–2
Package
Chip form
SEIKO NPC CORPORATION —1
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