Data Sheet

EURO QUARTZ
EM63GT TCXO
CMOS, 6 pad SMD, MHz Range
1.25MHz to 156.0MHz
Miniature 11.4 x 9.6 x 3.0mm SMD 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
EM63GT - OUTLINES AND DIMENSIONS
DESCRIPTION
EM63GT 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.
SPECIFICATION
Product Series Code
TCXO:
VCTCXO:
Frequency Range:
Output Waveform:
Initial Calibration Tolerance:
Standard Frequencies:
EM63GT
VEM63GT
1.25MHz to 156.0MHz
Squarewave, HCMOS
<±2.0ppm 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
(
)
Operating Temperature Range:
Frequency Stability
vs. Ageing:
vs. Voltage Change:
vs. Load Change:
vs. Reflow (SMD type):
±1.0 ppm max. first year
±0.3 ppm max. ±5% change
±0.3 ppm max. ±10% change
±1.0ppm max. for one reflow
(
)
±3ppm minimum
+2.8, +3.0, +3.3 or +5.0V
(
Logic High: 90% Vdd min.
Logic Low: 10% Vdd max.
10ns max.
50%±10% standard,
50%±5% option
5ms typical, 10ms max.
Mechanical Frequency Tuning:
Supply Voltage:
Output Logic Levels:
Rise and Fall Times:
Duty Cycle:
Start-up Time:
Current Consumption:
Output Load:
Storage Temperature:
INPUT VOLTAGE & CURRENT CONSUMPTION
Input Voltage/
Frequency
+2.8V
8.192MHz
2mA
10.0MHz
±0.5
±1.0
±1.5
±2.0
±2.5
0 ~ +50
P
P
P
P
P
-10 ~ +60
ASK
P
P
P
P
-20 ~ +70
x
P
P
P
P
-30 ~ +75
x
P
P
P
PP
-40 ~ +85
x
P
P
P
P
= available, x = not available, ASK = call Technical Sales
VEM63GT VOLTAGE CONTROL SPECIFICATION
Control Voltage:
Standard = +1.5±1.0Volts for all input
voltages.
Frequency Deviation:
Slope Polarity:
±6.0 ppm min. (Vcon = +4.5V±1.0V)
Positive
Input Impedance:
50k minimum
Modulation Bandwidth: 20kHz minimum
Linearity:
±10% maximum
5mA
3mA
4mA
7mA
14mA
17mA
32mA
155.520MHz
26mA
35mA
50mA
Offset
P
2mA
+5.0 V
77.760MHz
FREQUENCY STABILITY
Temperature
Range (°C)
+3.3V
SSB PHASE NOISE at 25°C
15pF
-55~+125°C
Frequency Stability (ppm)
+3.0
Part =
M62GT33
10Hz
100Hz
1kHz
10kHz
100kHz
at 10.0Mhz
(dBc/Hz)
-115
-135
-148
-152
-155
at 155.250Mhz
(dBc/Hz)
-72
-110
-125
-132
-125
PART NUMBERING PROCEDURE
Example:
EM63GT33-38.880-2.5/-30+75
Series Description
TCXO = EM63GT
VCTCXO = VEM63GT*
(G = RoHS Compliant)
Supply Voltage
28 = 2.8 VDC
3 = 3.0 VDC
33 = 3.3 VDC
5 = 5.0 VDC
Frequency (MHz)
Stability over OTR (±ppm)
Operating Temperature Range (OTR) (°C)
Lower and upper limits.
* Above 40MHz part numbers are EML63GT or VEML63GT to indicate
use of a Phase Locked Loop (PLL) circuit above this frequency.
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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