北京科瑞思特电子有限公司
Beijing Crystal Electronics Co., Ltd.
TCXOs
VTH04
◆Wide
frequency tuning range by control voltage with good frequency temperature
stability..
◆Very good linearity.
◆Good
Reliability.
Table1 Specifications
Parameter
Frequency Range
频率范围
2MHz~40MHz
Models with internal trimmer :Adjust to the nominal frequency
Models without internal trimmer :±1ppm typical
See table2
±1ppm/year
See table2
12.0V,9.0V,8.0V,5.0V
20mA max
TTL/CMOS, Code is “T”
Sinewave, 1.5Vp-p min@Load 1k
Ω,
Code is ”S”
Start-up Time
VCTCXO
压控特性
起振时间
Frequency Tuning Range
Control Voltage Range
Slope Polarity
Linearity
Input Resistance
Package
外½尺寸
Storage Temperature Range
存储温度范围
Table2 Frequency Stability vs Operation
±1.0ppm
0~50℃
-10~60℃
-20~70℃
-20~60℃
-40~70℃
A10
±2.0ppm
A20
B20
C20
N20
T20
A25
B25
C25
N25
T25
VTH04
Initial Calibration Tolerance (@25℃±2℃)
频率准确度
Frequency
Stability
频率稳定度
vs Operation Temp. Range
vs Aging
Operation Temperature Range
工½温度范围
Supply Voltage
Output
输出
电源电压
电流
Current Consumption
2ms max
±5ppm typical, by internal trimmer
±50ppm ~±200ppm optional
0V±1V
Negative or Positive optional
5%max
100kΩ min
A16a,A16b
-55~+85℃
Temperature Range(Ref to 25℃) and Option Code
±3.0ppm
A30
B30
C30
N30
T30
±3.5ppm
A35
B35
C35
N35
T35
±5.0ppm
A50
B50
C50
N50
T50
Frequency Tuning Range (@25℃±2℃)
±2.5ppm
TCXOs
Part Numbering Key
SERIES
VTH04
PACKAGE
CODE
A15
A16a
A16b
Supply
Voltage
8=8.0V
5=5.0V
OUTPUT FORM
S=Sinewave
T=TTL/CMOS
FREQ. STABILITY
vs.TEMP
See Table2
FREQUENCY
Sample Part Numbers
VTH04A16b-8SN35
@12.800Mhz
VTH04
A16b
8
S
N35
12.800MHz
* New Production
Beijing Crystal Electronics Co., Ltd
Tel:+86-10-88790152,88790153 Fax:+86-1088792424 Http:www.bjcec.com Email:sales@bjcec.com
PCB设计
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