Crystek CVT25 Temperature compensated voltage controlled crystal oscillator Datasheet

CVT25 Model
2.5×3.2 mm SMD, 3V, TCXO
Available Frequencies:
Frequency Stability:
Temperature Range:
Storage:
Input Voltage:
Input Current:
Output:
Waveform:
Load:
Voltage Control:
Vcont Trim:
Harmonics:
Phase Noise:
100Hz Offset
1kHz Offset
Aging:
13.0, 19.2, 26.0, 38.4, 40.0 (MHz)
±2.5ppm Max
-30°C to 75°C
-40°C to 90°C
3.0V ±5%
Model CVT25 is a Clipped
1.2mA Typ., 2mA Max
Sinewave TCXO operating at 3.0
0.8Vp-p Min
Clipped Sinewave
Volts. The oscillator utilizes digital
10kΩ // 10pF Typ.
temperature
compensation to provide
1.5V ±1.0V
±8ppm Min
stable frequency output over
-5dBc Max
temperature. No Sub-Harmonics are
-110 dBc/Hz Max
-130 dBc/Hz Max
present in the Output Signal.
<1ppm per year
Ordering Information:
Example:
Packaging:
CVT25-Frequency
CVT25-19.200
2,000pcs Tape/Reel
Dimensions inches (mm)
All dimensions are Max unless otherwise specified.
SUGGESTED PAD LAYOUT
0.021
(0.53)
0.126 ±0.004
(3.2 ±0.1)
C freq
Lot Code
0.039
Max
(1.00)
Denotes pad 1
TEST CIRCUIT
#3
0.020
(0.5)
Bypass
Cap.
OUT
OSC.
Vcont
pin 1
CL
Ramp-Up
3°C/Sec Max.
217°C
RL
GND
pin 2
RECOMMENDED REFLOW SOLDERING PROFILE
Critical
Temperature Zone
Ramp-Down
6°C/Sec.
200°C
0.043
(1.1)
4
3
1
2
0.077
(1.95)
pin 3
Vdd
TEMPERATURE
#4
0.01µF
0.020
(0.5)
FET PROBE
VM
260°C
#2
Co
mA
M
PWR
Supply
#1
0.077
(1.95)
via to
ground
0.098 ±0.004
(2.5 ±0.1)
pin 4
Applications:
GSM
GPRS
3G
CDMA
W-CDMA
0.020
(0.5)
0.035
(0.9)
PIN
Function
1
2
3
4
Volt Cont.
GND
OUT
Vcc
Mechanical:
Shock:
Solderability:
Vibration:
Solvent Resistance:
Resistance to Soldering Heat:
MIL-STD-883, Method 2002, Condition B
MIL-STD-883, Method 2003
MIL-STD-883, Method 2007, Condition A
MIL-STD-202, Method 215
MIL-STD-202, Method 210, Condition I or J
Environmental:
150°C
Thermal Shock:
Moisture Resistance:
Preheat
180 Secs. Max.
8 Minutes Max.
90 Secs. Max.
260°C for
10 Secs. Max.
NOTE: Reflow Profile with 240°C peak also acceptable.
CRYSTEK
CORPORATION
MIL-STD-883, Method 1011, Condition A
MIL-STD-883, Method 1004
Specifications subject to change without notice.
TD-061001 Rev. J
12730 Commonwealth Drive • Fort Myers, Florida 33913
Phone: 239-561-3311 • 800-237-3061
Fax: 239-561-1025 • www.crystek.com
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