EM57T5-50.000K-2.0/-10+60 [EUROQUARTZ]
Oscillator;
| 型号： | EM57T5-50.000K-2.0/-10+60 |
| 厂家： | 
EUROQUARTZ LIMITED |
| 描述： | Oscillator |
| 文件： | 总1页 (文件大小：132K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
QUARTZ
EURO
TCXO
EM57T Series
HCMOS 7 x 5 x 2.5mm SMD, kHz Range
Miniature 7 x 5 x 2.5mm SMD package
Frequency range: 20.0 to 50.0kHz; 32.768kHz
Supply voltage 3.3 or 5.0 Volts
Frequency stability from ±1ppm over -30 to +75°C
RoHS compliant
EM57T - OUTLINES AND DIMENSIONS
DESCRIPTION
EM57T series TCXOs are packaged in a miniature 4 pad ceramic SMD
package. With squarewave (CMOS) output, tolerances are available
from ±1.0ppm over -30° to +75°C. The part has a 0.01mF decoupling
capacitor built in.
SPECIFICATION
Product Series Code
TCXO:
EM57T
VCTCXO:
VEM57T
Frequency Range:
Output Waveform:
32.768kHz Standard frequency
20.0kHz to 50.0kHz
Squarewave
Initial Calibration Tolerance
Models with mech. trimmer: <1.0ppm (at t. 25°±2°C)
Models without trimmer:
Operating Temperature Range:
Frequency Stability
vs. Ageing:
<2.0ppm (at t. 25°±2°C)
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)
+3.3 or +5.0Volts
vs. Voltage Change:
vs. Load Change:
vs. Reflow:
Supply Voltage:
(Specify when ordering)
Logic High: 90% Vdd min.
Logic Low: 10% Vdd max.
10ns max.
Output Logic Levels:
Rise and Fall Times:
Duty Cycle:
50%±5%
VEM57T VOLTAGE CONTROL SPECIFICATION
Control Voltage: Standard = +1.5±1.0Volts for all input
Start-up Time:
Current Consumption:
2ms typical, 5ms max.
See table below
Output Load:
15pF
voltages. (Contact technical sales if
Storage Temperature:
-55~+125°C
+2.5±2.0 Volts is required.)
Frequency Deviation: ±6.0 ppm min.
Slope Polarity:
Positive (increase of control voltage increases
output frequency.)
Input Impedance:
10k min.
Modulation Bandwidth: 3.0kHz min. measured at -3dB
Linearity: 10% max.
FREQUENCY STABILITY
Frequency Stability (ppm)
0 ~ +50
±0.5
±1.0
±1.5
±2.0
P
±2.5
P
ASK
P
P
x
P
P
P
x
-10 ~ +60
x
x
x
x
P
P
Temperature
-20 ~ +70
Range (°C)
P
P
-30 ~ +75
-40 ~ +85
x
P
PP
P
x
x
x
PART NUMBERING PROCEDURE
P= available, x = not available, ASK = call Technical Sales
Example:
EM57T33-32.768k-2.5/-30+75
Series Description
TCXO = EM57T
CURRENT CONSUMPTION
VCTCXO = VEM57T
Frequency
32.768kHz
50kHz
+3.3 V
8.0mA
12mA
Supply Voltage
33 = 3.3 VDC
5 = 5.0 VDC
Frequency (kHz)
Stability over OTR (±ppm)
Operating Temperature Range (OTR) (°C)
Lower and upper limits.
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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