概述
数据手册EM42GS28-12.800-2.5/-30+75 概述
Oscillator,
EM42GS28-12.800-2.5/-30+75 数据手册
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EURO
EM42GS TCXO
10MHz to 27MHz
Clipped Sinewave, 4 Pad FR4 substrate SMD
Industry-standard SMD package 11.4 x 9.6 x 2.5mm
Close tolerance stabilities from ±0.5ppm over 0° to +50°C
±1ppm over -40 to +85°C
Low power consumption
RoHS compliant
EM42GS - OUTLINES AND DIMENSIONS
DESCRIPTION
EM42GS series TCXOs are packaged in the industry-standard 11.4 x
9.6 x 2.5mm SMD package. With clipped sinewave output, close
tolerances are available from ±0.5ppm over 0° to 50°C or ±1ppm
over -40° to +85°C. The part has low power consumption.
SPECIFICATION
Product Series Code
TCXO:
EM42GS
VCTCXO:
VEM42GS
Frequency Range:
Output Waveform:
Initial Calibration Tolerance**:
Standard Frequencies:
10.0MHz to 27.0MHz
Clipped Sinewave
<±1ppm at 25°C
10.0, 12.80, 13.0, 14.40,
15.36, 16.384, 19.2, 19.440,
and 19.68MHz (Partial list)
See table
Operating Temperature Range:
Frequency Stability
vs. Ageing:
±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, +3.0 or +5.0Volts
(Specify when ordering)
0.8V p-p minimum
2ms typical, 5ms max.
See table below
10kOhm//10pF ±10%
-10dB typical, -7dB max.
See table
vs. Voltage Change:
vs. Load Change:
vs. Reflow:
Supply Voltage:
Output Voltage Level:
Start-up Time:
Current Consumption:
Output Load:
Harmonic Distortion:
SSB Phase Noise:
VEM42GS 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.
Storage Temperature:
Output Format:
DC block, AC coupled
-50° to +100°C
Slope Polarity:
Positive (increase of control voltage increases
output frequency.)
Input Impedance:
1.0M min.
Modulation Bandwidth: 3.0kHz min. measured at -3dB
FREQUENCY STABILITY
Linearity:
10% max.
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
PHASE NOISE
Temperature
-20 ~ +70
Range (°C)
P
P
Offset
(Hz)
10
100
1k
10k
100k
-150
-30 ~ +75
-40 ~ +85
x
P
PP
P
SSB Phase Noise
at 25°C
x
x
x
EM42GS
13MHz
-80 -115
-135
-148
P= available, x = not available, ASK = call Technical Sales
(dBc/Hz)
CURRENT CONSUMPTION
PART NUMBERING PROCEDURE
Frequency Range
10.0MHz to 13MHz
13.1MHz to 20MHz
20.1MHz to 27MHz
+3.0 V
1.3mA
1.5mA
2.0mA
+5.0 V
2.0mA
2.2mA
2.5mA
Example:
EM42GS3-19.44-2.5/-30+75
Series Description
TCXO = EM42GS
VCTCXO = VEM42GS
Supply Voltage
28 = 2.8 VDC
3 = 3.0 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 info@euroquartz.co.uk www.euroquartz.co.uk
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