VFT2943BN-32-40MHZ [CTS]
Oscillator,;
CTS 
VFTX94 Series SMD VCXO
Product Data Sheet
COOL…TO THE TOUCH
Features
• Small, 7.5mm x 5 mm SMD Package
• Very Low Phase Jitter and Phase Noise
• Excellent Frequency Stability
• Low Aging Crystal
• SONET/SDH stability available
• High Frequency, no multiplication
0.3 (7,6 mm)
0.2 (5,1 mm)
SMD Reflow Profile
250
200
150
100
50
0.1 (2,5 mm)
0
0
50
100
150
200
3
4
2
5
1
6
Time, s
Ø0.04 (1,0 mm)
0.200 (5.08 mm)
Creating a Part Number
-APR, ppm
FREQUENCY, MHz
VFT
94
X
Temperature Range
Frequency Stability
Tristate Control
Supply Voltage
Code
A
Specification
-10°C to 60°C
0°C to 70°C
Code
N
Specification
±50 ppm
±20 ppm
Code
Specification
Pin #5
Code
Specification
5V ±5%
1
2
5
3
B
C
S
Pin #2
3.3V ±5%
-40°C to 85°C
VF Technologies • 75 South Street, Hopkinton, MA 01748 • Tel. 1-800-XTALREP, 508-435-6831 • FAX 508 4355289
VFTX94 Series SMD VCXO
Specifications
Symb
Condition
Min
Typ
Max
Unit
Note
Parameter
Absolute Maximum Ratings
Vcc
-0.5
7.0
V
Input Break
Down Voltage
Storage temp.
Contr. Voltage
Ts
Vc
-40
-1
125
9
° C
V
Electrical
F
40
250
MHz
V
Frequency
Range
Vcc
3.135
4.75
3.30
5.0
3.465
5.25
50
Code 3
Code 5
Input Voltage
Icc
∆F/F
∆F/F
No Load
Overall
mA
@ 155 MHz
@Vc = 1.65 V
Input Current
Frequency Stab.
Frequency
Stability for
SONET
±50
vs. Temperature
±10
±1
ppm
ppm/V
ppm/year
ppm
vs. Vcc
aging
±1
First Year
Overall
±20
55
@Vc = 1.65 V
50 pF max
45
Load
Duty cycle
@50%
20 to 80 %
50
2
%
ns
Tr/Tf
Voh
Vol
Ts
Rise/Fall time
Logic "1" level
Logic "0" level
Start up time
Phase jitter
SSB Phase Noise
0.9Vcc
V
0.1Vcc
10
1
V
2
ms
0.4
ps
fj>100 Hz
@155 MHz
1σ
@10 Hz
-70
dBc/Hz
@100 Hz
@1 KHz
-100
-130
@10 KHz
@100 KHz
@Vc=1.65V
fm < 10KHz
-150
-160
fm
Vc
>10KHz
> 10KOhm
@-3db
Modulation BW
Input
Impedance
Control voltage
0
0
3.3
5.0
V
L
S
Vc=0V to 5V,25°C
Vc=0V to 3.3V,25°C
Over all
±75
ppm
ppm
Deviation
±20
±32
±50
30
Absolute usable
pull range
5V only
Monotonic, positive
@25°C, Fnom.
ppm/V
%
V
Deviation slope
Linearity
-10
1.25
2.0
+10
2.05
3.0
Vc0
1.65
2.5
L
S
Setability (Vc
for center freq.)
Input HIGH (>2.5V),or floating: ACTIVE
Tristate
Input LOW (<0.5V) :
Te/Td
INFINITE IMPEDANCE
100
Function
ns
Enable/disable
Time
Environmental and Mechanical
0°C to 70°C , -40°C to 85°C
Operating temp.
range
Per MIL-STD-202, Method 213, Cond. E
Mechanical Shock
Thermal Shock
Vibration
Per MIL-STD-883, Method 1011, Cond. A
Per MIL-STD-883, Method 2007, Cond. A
230°C for 90s Max
Soldering Conditions
Hermetic Seal
-8
Leak rate less than 5x10 atm.cc/s of helium (crystal only)
Electrical Connections
Pin Out
Pin #1- Voltage Control
Pin #2 – Tristate control (code “2”), or N/C, (code “1”)
Pin #3 - Case, Gnd
Pin #4 - Output
Pin #5 – N/C (code “2”), or Tristate control (code “1”)
Pin #6 - Vcc
Rev 01312004
VF Technologies • 75 South Street, Hopkinton, MA 01748 • Tel. 1-800-XTALREP, 508-435-6831 • FAX 508 4355289
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