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PDF ( 数据手册 , 数据表 ) CF5074A

零件编号 CF5074A
描述 VCXO Module ICs
制造商 Nippon Precision Circuits
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CF5074A 数据手册, 描述, 功能
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CF5074A
VCXO Module IC with Built-in Varicap
OVERVIEW
The CF5074A is VCXO module IC with built-in varicap diodes. The integrated varicap diode BiCMOS pro-
cess allows the device to be fabricated on a single chip. A newly developed oscillator circuit features reduced
drive level of crystal and wide pullrange. A VCXO module can be constructed with just the connection of a
crystal unit, making the devices ideal as surface-mounted, compact VCXO modules.
FEATURES
I 2.25 to 3.6V operating supply voltage range
I 50MHz to 80MHz operating frequency range
I Varicap diode built-in
I Oscillation start-up detector function
I CMOS output duty level
I 4mA (min) output drive capability
I 15pF output load
I Standby function
• High impedance in standby mode
I BiCMOS process
I Chip form (CF5074A)
APPLICATIONS
I VCXO modules
ORDERING INFORMATION
Device
CF5074A1
CF5074A3
Package
Chip form
SEIKO NPC CORPORATION —1







CF5074A pdf, 数据表
CF5074A
Switching Time Measurement Waveform
Output duty level, tr, tf
www.datasheet4u.com Q output
0.8VDD
0.2VDD
tr
TW
0.8VDD
0.2VDD
DUTY measurement
voltage (0.5V DD)
tf
Output duty cycle
Q output
TW
T
DUTY measurement
voltage (0.5VDD)
DUTY= TW/ T 100 (%)
Output Enable/Disable Delay Times
INHN
Q output
VIL
tPLZ
VIH
tPZL
INHN input waveform tr = tf 10ns
SEIKO NPC CORPORATION —8














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