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EM57T28-14.40-2.5/-20+70

更新时间： 2024-11-12 19:39:11
品牌 Logo 应用领域
EUROQUARTZ 机械振荡器
页数 文件大小 规格书
1页 172K
描述
HCMOS Output Clock Oscillator, 14.4MHz Nom, ROHS COMPLIANT, MINIATURE, SMD, 4 PIN

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EM57T28-14.40-2.5/-20+70 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最长下降时间：10 ns
频率调整-机械：NO频率稳定性：2.5%
安装特点：SURFACE MOUNT标称工作频率：14.4 MHz
最高工作温度：70 °C最低工作温度：-20 °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：2.8 V表面贴装：YES
最大对称度：60/40 %Base Number Matches：1

EM57T28-14.40-2.5/-20+70 数据手册

  
QUARTZ  
EURO  
TCXO  
EM57T Series  
HCMOS 7 x 5 x 2.5mm SMD  
Miniature SMD package 7 x 5mm  
Wide frequency range: 2.5MHz to 170MHz  
Stability from ±0.5ppm over 0° to +50°C  
±1ppm over -40 to +85°C available  
Supply voltage 2.8 Volts to 5.0 Volts  
EM57T - OUTLINES AND DIMENSIONS  
DESCRIPTION  
EM57T series TCXOs are packaged in the industry-standard 7x5mm  
SMD format. With HCMOS output, close tolerances are available  
from ±0.5ppm over 0° to 50°C to ±1ppm over -40° to +85°C. The  
parts have a 0.01uF decoupling capacitor built-in.  
SPECIFICATION  
Product Series Code:  
Frequency Range:  
Output Waveform:  
Initial Calibration Tolerance*:  
Standard Frequencies:  
EM57T  
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:  
+3.0 VDC (Code ‘3’)  
+3.3 VDC (Code ‘33’)  
+5.0 VDC (Code ‘5’)  
Output Voltage Levels  
Logic ‘1’ HIGH:  
EM57T - TEST CIRCUIT  
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:  
Output Load:  
30mA max. (Freq. dependent)  
15pF  
SSB Phase Noise:  
Output Format:  
Storage Temperature:  
See table  
AC block, DC coupled  
-50° to +100°C  
* Stability over temperature will be from this measured initial frequency  
FREQUENCY STABILITY  
Frequency Stability (ppm)  
0 ~ +50  
±0.5  
±1.0  
P
±1.5  
P
±2.0  
P
±2.5  
P
EM57T - PART NUMBERING PROCEDURE  
P
ASK  
x
Example:  
EM57T3-19.44-2.5/-30+75  
-10 ~ +60  
P
P
P
P
Temperature  
-20 ~ +70  
Range (°C)  
P
P
P
P
-30 ~ +75  
-40 ~ +85  
x
P
P
P
P
Series Description  
Supply Voltage  
x
P
P
P
P
28 = 2.8 VDC  
P = available, x = not available, ASK = contact Technical Sales  
= standard specification  
3 = 3.0 VDC  
33 = 3.3 VDC  
5 = 5.0 VDC  
PHASE NOISE  
Frequency  
Offset  
(Hz)  
10  
100  
1k  
10k  
100k  
Stability over OTR (ppm)  
Operating Temperature Range (OTR) (°C)  
SSB Phase Noise  
at 25°C  
EM57T  
100MHz  
(dBc/Hz)  
-72  
-110  
-125  
-132  
-125  
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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 		HCMOS Output Clock Oscillator, 14.4MHz Nom, ROHS COMPLIANT, MINIATURE, CERAMIC, SMD, 4 PIN
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 		HCMOS Output Clock Oscillator, 14.4MHz Nom, ROHS COMPLIANT, MINIATURE, CERAMIC, SMD, 4 PIN

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