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零件编号 | CF5074A | ||
描述 | VCXO Module ICs | ||
制造商 | Nippon Precision Circuits | ||
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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
CF5074A−1
CF5074A−3
Package
Chip form
SEIKO NPC CORPORATION —1
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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页数 | 9 页 | ||
下载 | [ CF5074A.PDF 数据手册 ] |
零件编号 | 描述 | 制造商 |
CF5074A | VCXO Module ICs | Nippon Precision Circuits |
CF5074B | VCXO Module IC | Nippon Precision Circuits |
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