VF194/VF294
VCXO Low Jitter 3.3V
5x7mm SMD, HCMOS/TTL
Features
TRISTATE
1.5MHz to 77.76MHz Frequency Range
<1.0ps RMS Jitter over 12KHz to 20MHz
APR min ± 50ppm
RoHS Status
Applications
Standard and High Definition Video
10 Gbit Ethernet
Optical Networking
Electrical Specifications
Parameter
Frequency
Range
Frequency
Stability
Operating
Temperature
Supply Voltage
Supply Current
Voltage Control
APR
Jitter RMS
12KHz to 20MHz
Symbol
F
∆F/F
T
Vcc
Icc
Vc
Condition
Min
1.5
Typ
Max
160.00
25
Unit
MHz
ppm
C
V
mA
V
ppm
Note
Vs. Operating
Temperature
0
-40
4.75
3.15
No load
Vcc = 5.0V
Vcc =3.3V
0
0
50
<1.0
fm<10KHz
100 Hz
1 KHz
10 KHz
100 KHz
1 MHz
50
-95
-125
-147
-155
-155
2
5.00
3.30
+70
+85
5.25
3.45
30
5.0
3.3
Order Code 1
Standard
LV Opt.
1σ
ps
KOhm
-90
-120
-142
-150
-150
10
100
ms
ns
%
5% optional
Input
Impedance
Phase Noise
@ 40.96 MHz
Start-up Time
Enable/Disable
Time
Duty Cycle
Ts
@1.4V
40
45
50
50
60
55
75 South Street, Hopkinton, MA 01748 • 800-982-5737 • 508-497-6377 • FAX 508-435-5289 • www.valpeyfisher.com • RevE0811
1
VF194/VF294
VCXO Low Jitter 3.3V
5x7mm SMD, HCMOS/TTL
Electrical Specifications
Parameter
Modulation BW
Deviation Slope
Linearity
Setability (Vc
for center freq)
Load
Output High
Voltage
Output Low
Voltage
Rise/Fall Time
Tristate
V
OH
V
OL
Tr/Tf
Max Load
Max Load
Vc0
@25C,
Fnominal
2.00
1.25
2.50
1.65
Symbol
fm
Condition
@Vc = 2.5V
Monotonic, positive
Min
10
50
20
3.00
2.05
Typ
Max
Unit
KHz
ppm/V
%
V
5.0V
3.3V
Note
@-3db
10 TTL gates or 50pF
0.9Vcc
0.1Vcc
6
4
ACTIVE
INFINITE IMPEDANCE
V
V
ns
20% to 80%
0.4V to 2.4V
Input HIGH (>2.5V) or floating:
Input LOW (<0.5V):
Absolute Maximum Ratings
Parameter
Lead
Temperature
Storage
Temperature
Supply
Voltage
Symbol
Condition
Soldering, 90s max
Ts
Vc
-55
-1
Min
Typ
Max
+230
+125
9
Unit
C
C
V
Note
How to Order
VF194
VF294
Frequency Stability
Code
Specification
S
20 ppm
(std.)
Duty Cycle
Specification
Supply Voltage
Code
Output
L
3.3V
5.0V
FREQUENCY, MHz
Code
H
Temperature Range
Code
Specification
1
0°C to 70°C
-40°C to 85°C
Code
5%
10 % (std.)
APR (min)
Specification
Specify min
XXX
APR
(MAX.
100 PPM)
75 South Street, Hopkinton, MA 01748 • 800-982-5737 • 508-497-6377 • FAX 508-435-5289 • www.valpeyfisher.com • RevE0811
2
VF194/VF294
VCXO Low Jitter 3.3V
5x7mm SMD, HCMOS/TTL
Environmental and Mechanical Conditions
Parameter
Mechanical Shock
Thermal Shock
Vibration
Hermetic Seal
Specification
Per MIL-STD-202, Method 213, Cond. E
Per MIL-STD-883, Method 1011, Cond. A
Per MIL-STD-883, Method 2007, Cond. A
Leak rate less than 5x10
-8
atm.cc/s of helium
VF194 Pin Connections
Pin #
1
2
3
4
5
6
Connections
Vc
N/C
Ground, Case
Output
Tristate
Vcc
VF294 Pin Connections
Pin #
1
2
3
4
5
6
Connections
Vc
Tristate
Ground, Case
Output
N/C
Vcc
75 South Street, Hopkinton, MA 01748 • 800-982-5737 • 508-497-6377 • FAX 508-435-5289 • www.valpeyfisher.com • RevE0811
3
