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EM8GT Schematic ( PDF Datasheet ) - EUROQUARTZ

Teilenummer EM8GT
Beschreibung HCMOS
Hersteller EUROQUARTZ
Logo EUROQUARTZ Logo 




Gesamt 1 Seiten
EM8GT Datasheet, Funktion
EURO QUARTZ
EM8GT Series TCXO
8 piwnwDwI.LDiantdaSuhstereyt-4sUta.cnodmard, hermetically-sealed package
Wide frequency range: 1.25MHz to 156.0MHz
Supply voltage 2.8, 3.0, 3.3 or 5.0 Volts
Frequency stability from ±1ppm over -30 to +75°C
RoHS compliant
DESCRIPTION
EM8GT series TCXOs are packaged in the industry-standard 8 pin DIL
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.
HCMOS, 8 pin DIL, MHz Range
EM8GT - OUTLINES AND DIMENSIONS
SPECIFICATION
Product Series Code
TCXO:
VCTCXO:
Frequency Range:
Output Waveform:
Initial Calibration Tolerance:
Standard Frequencies:
Operating Temperature Range:
Frequency Stability
vs. Ageing:
vs. Voltage Change:
vs. Load Change:
vs. Reflow (SMD type):
Mechanical Frequency Tuning:
Supply Voltage:
Output Logic Levels:
Rise and Fall Times:
Duty Cycle:
Start-up Time:
Current Consumption:
Output Load:
Storage Temperature:
EM8GT
VEM8GT
1.25MHz to 156.0MHz
Squarewave, HCMOS
<±1.0ppm at +25°±2°C
10.0, 12.8, 13.0, 14.4, 15.36,
16.384, 19.2, 19.440, 19.68,
25.0, 20.0, 27.0, 38.880,
40.0, 77.760, 125.0, 155.520
(Partial list)
See table
±1.0 ppm max. first year
±0.3 ppm max. ±5% change
±0.3 ppm max. ±10% change
±1.0ppm max. for one reflow
(Measured after 24 hours)
±3ppm minimum
+2.8, +3.0, +3.3 or +5.0V
(See table)
Logic High: 90% Vdd min.
Logic Low: 10% Vdd max.
10ns max.
50%±10% standard,
50%±5% option
5ms typical, 10ms max.
See table below
15pF
-55~+125°C
INPUT VOLTAGE & CURRENT CONSUMPTION
Input Voltage/
Frequency
8.192MHz
10.0MHz
77.760MHz
155.520MHz
+2.8V
2mA
3mA
14mA
26mA
+3.0 +3.3V +5.0 V
2mA
4mA
17mA
35mA
5mA
7mA
32mA
50mA
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
VEM8GT 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. (Vcon = +4.5V±1.0V)
Slope Polarity:
Positive (increase of control voltage increases
output frequency.)
Input Impedance:
50k minimum
Modulation Bandwidth: 20kHz minimum
Linearity:
±10% maximum
SSB PHASE NOISE at 25°C
Part =
EM8GT33
Offset
at 10.0Mhz
(dBc/Hz)
at 155.250Mhz
(dBc/Hz)
10Hz
-115
100Hz
-135
1kHz
-148
10kHz
-152
100kHz
-155
-72
-110
-125
-132
-125
PART NUMBERING SCHEDULE
Example:
EM8GT33-38.880-2.5/-30+75
Series Description
TCXO = EM8GT
VCTCXO = VEM8GT
Supply Voltage
28 = 2.8VDC
3 = 3.0VDC
33 = 3.3 VDC
5 = 5.0 VDC
Frequency (MHz)
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





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