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参数资料
| 型号： | CVT32-20.000 |
| 厂商： | Crystek Corporation |
| 文件页数： | 1/1页 |
| 文件大小： | 0K |
| 描述： | TCXO 20.00 MHZ 3.0V SMD |
| 标准包装： | 100 |
| 系列： | CVT |
| 类型： | TCXO |
| 频率： | 20MHz |
| 输出： | 削峰正弦波 |
| 电源电压： | 3V |
| 频率稳定性： | ±2.5ppm |
| 工作温度： | -20°C ~ 80°C |
| 电流 - 电源（最大）： | 2mA |
| 安装类型： | 表面贴装 |
| 尺寸/尺寸： | 0.197" L x 0.126" W（5.00mm x 3.20mm） |
| 高度： | 0.061"（1.55mm） |
| 封装/外壳： | 4-SMD，无引线（DFN，LCC） |
| 包装： | 散装 |
CVT32 Model
3.2×5.0 mm SMD, 3V, TCVCXO
Frequency Range:
Calibration Tolerance:
Frequency Stability:
Temperature Range:
Storage:
10 MHz to 30 MHz
±1.5ppm
±2.5ppm
-20°C to 80°C
-40°C to 90°C
Input Voltage:
Input Current:
Output:
Waveform:
Load:
Voltage Control:
Vcont Trim.
Harmonics:
Phase Noise: 10Hz offset
100Hz offset
3.0V ±10%
1.2mA Typical, 2mA Max
0.8Vp-p Min
Clipped Sine
6-15 kohm // 2-10pF
1.5V ± 1.0V
±4ppm Min, ±12ppm Max
-12 dBC Max
-83 dBc/Hz Max
-115 dBc/Hz Max
Designed to meet today's
requirements for precision
operation and small layout
applications. Temperature
compensation is accomplished
through digital technology.
Standard packaging is 1k
tape and reel.
1kHz offset
10kHz offset
Aging:
Dimensions inches (mm)
-135 dBc/Hz Max
-140 dBc/Hz Max
1ppm Max per year
SUGGESTED PAD LAYOUT
All dimensions are Max unless otherwise specified.
0.197 ±0.008
(5.0 ±0.2)
0.067
(1.7)
CRYSTEK
Freq XXXX
0.126 ±0.008
(3.2 ±0.2)
0.061
(1.55)
Max
#1
#4
#2
#3
0.055
(1.4)
0.055
(1.4)
0.090
(2.3)
Denotes pad 1
XXXX=Date Code
TEST CIRCUIT
0.102
(2.6)
0.150
(3.8)
0.1uF Bypass Capacitor Recommended
mA
M
0.1μF
Oscilloscope
PIN
Function
pin 4
Vdd
pin 3
OUT
3pF
Frequency
1
Vcont
PWR
Supply
VM
Bypass
Cap.
Vcont
pin 1
OSC.
GND
pin 2
10K
ohm
10pF
Counter
2
3
4
GND
OUT
VDD
RECOMMENDED REFLOW SOLDERING PROFILE
Crystek Part Number Guide
260°C
Ramp-Up
3°C/Sec Max.
Critical
Temperature Zone
Ramp-Down
6°C/Sec.
Part Number
CVT32-Frequency
Frequency Stability
± 2.5ppm
217°C
200°C
150°C
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
Preheat
180 Secs. Max.
8 Minutes Max.
90 Secs. Max.
260°C for
Note* Not Recommended for ultrasonic wash
10 Secs. Max.
NOTE: Reflow Profile with 240°C peak also acceptable.
Specifications subject to change without notice.
TD-030301 Rev. J
CRYSTEK
CORPORATION
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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