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VEM57T3-14.40-0.5/-10+60 PDF预览

VEM57T3-14.40-0.5/-10+60

更新时间: 2024-11-06 19:00:59
品牌 Logo 应用领域
EUROQUARTZ 机械振荡器
页数 文件大小 规格书
1页 178K
描述
HCMOS Output Clock Oscillator, 14.4MHz Nom, ROHS COMPLIANT, MINIATURE, SMD, 4 PIN

VEM57T3-14.40-0.5/-10+60 技术参数

是否Rohs认证: 符合生命周期:Obsolete
Reach Compliance Code:unknown风险等级:5.84
老化:1 PPM/FIRST YEAR最大控制电压:2.5 V
最小控制电压:0.5 V最长下降时间:10 ns
频率调整-机械:NO频率稳定性:0.5%
安装特点:SURFACE MOUNT标称工作频率:14.4 MHz
最高工作温度:60 °C最低工作温度:-10 °C
振荡器类型:HCMOS输出负载:15 pF
物理尺寸:7.0mm x 5.0mm x 2.5mm最长上升时间:10 ns
标称供电电压:3 V表面贴装:YES
最大对称度:60/40 %Base Number Matches:1

VEM57T3-14.40-0.5/-10+60 数据手册

  
QUARTZ  
EURO  
VEM57T Series TCXO  
Voltage Controlled HCMOS 7 x 5 x 2.5mm SMD  
Miniature SMD package 7 x 5mm  
Wide frequency range: 2.5MHz to 170MHz  
Close tolerance stabilities from ±0.5ppm over 0° to +50°C  
±1ppm over -40 to +85°C available  
EFC tuning ±5ppm to ±12ppm  
Supply voltage 2.8 Volts to 5.0 Volts  
VEM57T - OUTLINES AND DIMENSIONS  
DESCRIPTION  
VEM57T series VCTCXOs are packaged in the industry-standard  
7x5mm package. Close tolerances are available from ±0.5ppm over  
0° to 50°C or ±1ppm over -40° to +85°C. The output is controllable  
by EFC enabling output control of ±5ppm to ±12ppm. The parts have  
a 0.01uF decoupling capacitor built-in.  
SPECIFICATION  
Product Series Code:  
Frequency Range:  
Output Waveform:  
Initial Calibration Tolerance:  
Standard Frequencies:  
VEM57T  
2.5MHz to 170.0MHz  
Square wave HCMOS  
±3ppm at 25°C  
10.0, 12.80, 13.0, 14.40,  
16.0, 16.3840, 19.200,  
19.440, 19.680, 20.0, 38.880,  
77.760 and 155.52MHz  
(Partial list)  
Operating Temperature Range:  
Frequency Stability  
vs. Ageing:  
See table  
±1.0 ppm max. first year  
±0.3 ppm max. ±5% change  
±0.3 ppm max. ±10% change  
±1ppm max. for one reflow  
(Measured after 24 hours)  
+2.8 VDC (Code ‘28’)  
vs. Voltage Change:  
vs. Load Change:  
vs. Reflow:  
Supply Voltage:  
VEM57T - TEST CIRCUIT  
+3.0 VDC (Code ‘3’)  
+3.3 VDC (Code ‘33’)  
+5.0 VDC (Code ‘5’)  
Output Voltage Levels  
Logic ‘1’ HIGH:  
80% Vdd min.  
Logic ‘0’ LOW:  
10% Vdd max.  
Rise & Fall Times:  
Duty Cycle (Symmetry):  
Start-up Time:  
10ns max. (20%~80%)  
50%±10% (at 50%Vdd)  
10ms max.  
Current Consumption:  
E.F.C. Tuning:  
30mA max. (Freq. dependent)  
±5 to ±12ppm with Vcon =  
+1.5V±1.0V. Note: All supply  
versions have +1.5V Vcon.  
Positive (inc. Vcon = inc. Freq.)  
10% max.  
Slope Polarity:  
Linearity:  
Output Load:  
15pF  
PHASE NOISE  
SSB Phase Noise:  
Output Format:  
Storage Temperature:  
See table  
AC block, DC coupled  
-50° to +100°C  
Offset  
(Hz)  
10  
100  
1k  
10k  
100k  
-125  
SSB Phase Noise  
at 25°C  
EM57T  
100MHz  
(dBc/Hz)  
-72  
-110  
-125  
-132  
FREQUENCY STABILITY OVER TEMPERATURE  
VEM57T - PART NUMBERING PROCEDURE  
Frequency Stability (ppm)  
0 ~ +50  
±0.5  
±1.0  
P
±1.5  
P
±2.0  
P
±2.5  
P
Example:  
VEM57T3-19.44-2.5/-30+75  
P
ASK  
x
-10 ~ +60  
P
P
P
P
Temperature  
-20 ~ +70  
Range (°C)  
P
P
P
P
Series Description  
Supply Voltage  
-30 ~ +75  
-40 ~ +85  
x
P
P
P
P
28 = 2.8 VDC  
x
P
P
P
P
3 = 3.0 VDC  
33 = 3.3 VDC  
5 = 5.0 VDC  
P = available, x = not available, ASK = call Technical Sales  
= standard specification  
Frequency  
Stability over OTR (ppm)  
Operating Temperature Range (OTR) (°C)  
EUROQUARTZ LIMITED Blacknell Lane CREWKERNE Somerset UK TA18 7HE  
Tel: +44 (0)1460 230000 Fax: +44 (0)1460 230001 info@euroquartz.co.uk www.euroquartz.co.uk  

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