CVT32 Model
Temperature Compensated
Crystal Oscillator
Voltage Trim
3.2X5 mm SMD, 3V, TCVCXO
Frequency Range:
10MHz to 30MHz
Calibration Tolerance:
Frequency Stability:
Temperature Range:
Storage:
±1.5ppm
±2.5ppm
-20°C to 80°C
-40°C to 90°C
3.0V ± 10%
Input Voltage:
Input Current:
Output:
1.2mA Typ., 2mA Max
0.8Vp-p Min
Designed to meet today's
requirements for precision
operation and small layout
applications. Temperature
c o m p e n s a t i o n i s
accomplished through
d i g i t a l t e c h n o l o g y .
Standard packaging is 1K
Waveform:
Clipped Sine
Load:
6-15Kohm // 2-10pF
1.5V ± 1.0V
Voltage Control:
Vcont Trim.
±4ppm Min, ±12ppm Max
-12 dBC Max
Harmonics:
Phase Noise:
-83 dBc/Hz Max
10Hz offset
-115 dBc/Hz Max 100Hz offset
-135 dBc/Hz Max 1KHz offset
-140 dBc/Hz Max 10KHz offset
1ppm Max / yr
tape and reel.
Aging:
SUGGESTED PAD LAYOUT
Dimensions inches (mm)
All dimensions are Max unless otherwise specified.
0.197 ±0.008
0.067
(1.7)
(5.0 ±0.2)
#1
#4
#2
#3
0.126 ±0.008
P/N DC
0.055
(1.4)
0.090
(2.3)
(3.2 ±0.2)
0.061
(1.55)
Freq
Max
0.055
(1.4)
0.102
(2.6)
0.150
(3.8)
Denotes pad 1
.1uF Bypass Capacitor Recommended
0.1uF
+
Oscilloscope
A
+
PIN
Function
3pF
Frequency
Counter
#4
#1
#3
#2
1
2
3
4
V cont
GND
OUT
PWR
Supply
Bypass
Cap.
OSC.
10K
ohm
10pF
Vcont
VDD
RECOMMENDED REFLOW SOLDERING PROFILE
Ramp-Up
3°C/Sec Max.
Critical Temperature
Crystek Part Number Guide
Zone
260°C
Ramp-Down
6°C/Sec.
Part Number
Frequency Stability
217°C
200°C
CVT32-Frequency
± 2.5ppm
Example: P/N CVT32-19.680MHZ
=
3.0V Input Voltage
±1.5ppm Calibration Tolerance
±2.5ppm Frequency Stability
-20°C to 80°C Operating Temp.
Volt. Trim, Clipped Sinewave
150°C
Preheat
90 Secs. Max.
180 Secs. Max.
8 Minutes Max.
Note* Not Recommended for ultrasonic wash
260°C for
10 Secs. Max.
NOTE: Reflow Profile with 240°C peak also acceptable.
TD-030301 Rev. F
Specifications subject to change without notice.