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CF5034DB Datasheet(PDF) 5 Page - Nippon Precision Circuits Inc

Part # CF5034DB
Description  350MHz PECL-output Oscillator ICs
PDF  6 Pages
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Manufacturer  NPC [Nippon Precision Circuits Inc]
Direct Link  http://www.npc.co.jp/en
Logo NPC - Nippon Precision Circuits Inc

CF5034DB Datasheet(HTML) 5 Page - Nippon Precision Circuits Inc

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CF5034 series
NIPPON PRECISION CIRCUITS INC.—5
FUNCTIONAL DESCRIPTION
Standby Function
When OE goes LOW, the oscillator stops and the
output pins (OUT, OUTN) become high impedance.
Power-saving Pull-up Resistor
The OE pin pull-up resistance changes in value in
response to the input level (HIGH or LOW). When
OE is LOW (standby state), the pull-up resistance
increases, thereby decreasing the current consump-
tion.
MEASUREMENT CIRCUITS
Measurement Circuit 1
Measurement Circuit 2
Measurement Circuit 3
Measurement Circuit 4
OE
OUT, OUTN
Oscillator
HIGH (or open)
Either fO or fO/2
Normal operation
LOW
High impedance
Stopped
XIN input signal 500mVp-p, sine wave
C1: 0.001µF
R1: 50
Ω
VT: VCC − 2V
VOE: VCC, VIH, VIL
Signal
Generator
VCC
R1
C1
XIN
OE
VCC2
OUT
GND
OUTN
VOE
R1
R1
VT
A IEE1, IEE2
0.7VCC
A
A
A
VCC
OE
VCC2
OUT
GND
OUTN
R1: 50
Ω, VT: VCC − 2V
R1: 50
Ω, VT: VCC − 2V
XOUT = HIGH: OUT pin is fixed HIGH (VOH).
OUTN pin is fixed LOW (VOL).
XOUT = LOW: OUT pin is fixed LOW (VOL).
OUTN pin is fixed HIGH (VOH).
VCC
XIN
XOUT
VCC2
OUT
GND
OUTN
R1
R1
VT
VCC
XIN
XOUT
VCC2
OUT
GND
OUTN
R1
R1
VT
TEST



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