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PDF EM39GT Data sheet ( Hoja de datos )
| Número de pieza | EM39GT | |
| Descripción | CMOS 14 pin DIL compatible kHz Range | |
| Fabricantes | EUROQUARTZ limited | |
| Logotipo |  |
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EURO QUARTZ
CMOS 14 pin DIL compatible, kHz Range
EM39GT TCXO
20.0kHz to 50.0kHz
Package pin outs compatible with 14 pin DIL
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
DESCRIPTION
EM39GT series TCXOs are packaged in a miniature 6 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.
EM39GT - OUTLINES AND DIMENSIONS
SPECIFICATION
Product Series Code
TCXO:
EM39GT
VCTCXO:
VEM39GT
Frequency Range:
32.768kHz Standard frequency
20.0kHz to 50.0kHz
Output Waveform:
Squarewave
Initial Calibration Tolerance
Models with mech. trimmer: <1.0ppm (at t. 25°±2°C)
Models without trimmer: <2.0ppm (at t. 25°±2°C)
Operating Temperature Range:
See table
Frequency Stability
vs. Ageing:
±1.0 ppm max. first year
vs. Voltage Change:
±0.3 ppm max. ±5% change
vs. Load Change:
±0.3 ppm max. ±10% change
vs. Reflow:
±1ppm max. for one reflow
(Measured after 24 hours)
Supply Voltage:
+3.3 or +5.0Volts
(Specify when ordering)
Output Logic Levels:
Logic High: 90% Vdd min.
Logic Low: 10% Vdd max.
Rise and Fall Times:
10ns max.
Duty Cycle:
50%±5%
Start-up Time:
2ms typical, 5ms max.
Current Consumption:
See table below
FROEuQtpUuEtNLoCaYdS: TABILITY
15pF
Storage Temperature:
-55~+125°C
FREQUENCY STABILITY
Frequency Stability (ppm)
±0.5
±1.0
±1.5
±2.0
0 ~ +50
ASK P
P
P
Temperature
Range (°C)
-10 ~ +60
-20 ~ +70
-30 ~ +75
x
x
x
PPP
x PP
x xP
-40 ~ +85
x
x
x
x
P = available, x = not available, ASK = call Technical Sales
±2.5
P
P
P
PP
P
VEM39GT VOLTAGE CONTROL SPECIFICATION
Control Voltage:
Standard = +1.5±1.0Volts for all input
voltages. (Contact technical sales if
+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.
PART NUMBERING PROCEDURE
CURRENT CONSUMPTION
Frequency
32.768kHz
50kHz
+3.3 V
8.0mA
12mA
Example:
EM39GT33-32.768k-2.5/-30+75
Series Description
TCXO = EM39GT
VCTCXO = VEM39GT
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 [email protected] www.euroquartz.co.uk
http://www.Datasheet4U.com
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