VFT594 Series SMD VCXO
VF Technologies
75 South Street, Hopkinton, MA 01748 Tel. 1-800-XTALREP, 508-435-6831 FAX 508 4355289
Product Data Sheet
Features
Small, Low Profile SMD Package
Very Low Phase Jitter and Phase Noise
Excellent Frequency Stability
Low Aging, Vacuum sealed Crystal
SONET/SDH stability available
High Frequency, no multiplication
COOL...TO THE TOUCH
SMD Reflow Profile
0
50
100
150
200
250
0
50
100
150
200
Time, s
Temperature, C
0.55 (14 mm)
0.35 (9 mm)
0.24 (6.1 mm)
0.200 (5.08 mm)
0.300 (7.62 mm)
1 2
3
4
5
6
Supply Voltage
Code Specification
S 5V
5%
L 3.3V
5%
Temperature Range
Code Specification
A
-10C to 60C
B
0C to 70C
C
-40C to 85C
Creating a Part Number
VFT594
FREQUENCY, MHz
-APR, ppm
Frequency Stability
Code Specification
N 50
ppm
S 20
ppm
Tristate Control
Code Specification
T Pin
#2
N N/A
VFT594 Series SMD VCXO
VF Technologies
75 South Street, Hopkinton, MA 01748 Tel. 1-800-XTALREP, 508-435-6831 FAX 508 4355289
Specifications
Parameter
Symb Condition
Min Typ Max Unit
Note
Absolute Maximum Ratings
Input Break
Down Voltage
Vcc
-0.5
7.0
V
Storage temp.
Ts -40
125
C
Contr. Voltage
Vc
-1
9
V
Electrical
Frequency
Range
F
8
250
MHz
Input Voltage
Vcc 3.135
4.75
3.30
5.0
3.465
5.25
V L
S
Input Current
Icc
No Load
50
mA
@ 155 MHz
Frequency Stab.
F/F
Overall
50
@Vc = 1.65 V
Frequency
Stability for
SONET
F/F
vs. Temperature
vs. Vcc
aging
Overall
10
1
1
20
ppm
ppm/V
ppm/year
ppm
First Year
@Vc = 1.65 V
Load
50 pF max
Duty cycle
@50% 45
50
55
%
Rise/Fall time
Tr/Tf
20 to 80 %
2
ns
Logic "1" level
Voh
0.9Vcc
V
Logic "0" level
Vol
0.1Vcc
V
Start up time
Ts
2
10
ms
Phase jitter
1
0.4 1 ps fj>100
Hz
SSB Phase Noise
@10
Hz
@100 Hz
@1 KHz
@10 KHz
@100 KHz
-70
-100
-130
-150
-160
dBc/Hz @155
MHz
Modulation BW fm @Vc=1.65V
>10KHz
@-3db
Input
Impedance
fm < 10KHz
> 10KOhm
Control voltage
Vc
0
0
3.3
5.0
V L
S
Deviation
Vc=0V to 5V,25C
Vc=0V to 3.3V,25C
75 ppm
Absolute usable
pull range
Over
all
50
ppm
Deviation slope
Monotonic,
positive
50
ppm/V
Linearity
-10
+10
%
Setability (Vc
for center freq.)
Vc0 @25C,
Fnom. 1.25
2.0
1.65
2.5
2.05
3.0
V L
S
Tristate
Function
Input HIGH (>2.5V),or floating: ACTIVE
Input LOW (<0.5V) : INFINITE IMPEDANCE
Enable/disable
Time
Te/Td
100
ns
Environmental and Mechanical
Operating temp.
range
0C to 70C , -40C to 85C
Mechanical Shock
Per MIL-STD-202, Method 213, Cond. E
Thermal Shock
Per MIL-STD-883, Method 1011, Cond. A
Vibration
Per MIL-STD-883, Method 2007, Cond. A
Soldering Conditions
230C for 90s Max
Hermetic Seal
Leak rate less than 5x10-8 atm.cc/s of helium (crystal only)
Electrical Connections
Pin Out
Pin #1- Voltage Control
Pin #2 Tristate control (code "T"), or N/C, (code "N")
Pin #3 - Case, Gnd
Pin #4 - Output
Pin #5 N/C
Pin #6 - Vcc
Rev 04172003
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