VEM38S3-16.384-2.0/-30+70 [EUROQUARTZ]
Oscillator,;
| 型号： | VEM38S3-16.384-2.0/-30+70 |
| 厂家： | 
EUROQUARTZ LIMITED |
| 描述： | Oscillator, |
| 文件： | 总1页 (文件大小：80K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
TEMPERATURE-COMPENSATED CRYSTAL OSCILLATORS
EM38S & VEM38S
CLIPPED SINEWAVE TCXO & VCTCXO
PACKAGE OUTLINE
DESCRIPTION
M38 TCXOs incorporate a hermetically sealed crystal designed to provide
a highly stable frequency source with the lowest possible phase-noise and
ageing. The EM38S TCXO has a 3 pin leaded package conforming to the
dimensions of 14 pin dual-in-line and incorporates a mechanical trimmer
for fine frequency adjustment. VEM38S packages are provided with 4 pins
for the purpose of electrical frequency tuning. Available with power supply
from 2.3 Volts to 5.5 Volts.
FEATURES
·
·
·
·
·
·
Fre q ue n cy ra n g e 9.6MHz to 26.0MHz
Clip p e d sin e outp ut
Powe r sup p ly from + 2.3 Volts to + 5.5 Volts
Sta b ility from ± 1p p m ove r -30° to + 70°C
Me ch a n ica l fre q ue n cy tun in g (EM38S)
Ele ctrica l fre q ue n cy tun in g (VEM38S)
GENERAL SPECIFICATION
Fre q ue n cy Ra n g e :
9.6.MHz to 26.0MHz
Outp ut Wa ve form :
Clipped Sine Wave
In itia l Ca lib ra tion Tole ra n ce :
Sta n d a rd Fre q ue n cie s:
± 3ppm mechanical adjust
9.6, 10.0, 12.8, 13.0, 14.4, 15.36,
16.384, 19.2, 19.44, 19.68MHz
(Partial list)
Fre q ue n cy Sta b ility
vs Te m p e ra ture :
vs Ag e in g :
from ± 1ppm to ± 5ppm (see table)
± 1ppm max. first year 25°C amb.
± 0.3ppm max. for ± 5% change
± 0.3ppm max. for ± 10% change
± 1ppm max. for one reflow
measured 24 hours afterwards
See table
± 3ppm minimum
2ms typical to reach 90%
amplitude at 25°± 2°C
CURRENT CONSUMPTION
vs Volta g e Ch a n g e :
vs Loa d Ch a n g e :
vs Re flow Sold e rin g :
Fre q ue n cy
Ra n g e
(MHz)
Curre n t Con sum p tion (m A m a x.)
3.0 Volts
5.0 Volts
Op e ra tin g Te m p e ra ture Ra n g e :
Me ch a n ica l Fre q ue n cy Tun in g :
Sta rt-up Tim e :
2.0
2.2
2.5
9.6~ 13
13.1~ 20
20.1~ 26
1.3
1.5
2.0
In p ut Volta g e Ra n g e :
+ 2.3VDC min. to + 5.5VDC max.
(Specify when ordering. Standard
is + 3.0 Volts and + 5.0 Volts)
TEMPERATURE STABILITY
Outp ut Volta g e Le ve l
Sup p ly :
Outp ut Volta g e :
Curre n t Con sum p tion :
Outp ut Loa d :
Ha rm on ic Distortion :
Outp ut Form a t:
Stora g e Te m p e ra ture :
+ 3.0 Volts
0.8V p-p min.
See table
+ 5.0 Volts
1.0V p-p
Op e ra tin g Te m p e ra ture Ra n g e (°C~ °C)
0~ + 60 -10~ + 60 0~ + 70 -20~ + 70 -30~ + 70 -40+ 85
10kW/ / 15pF
± 1
ü ü ü ü
ü
ü
X
X
-12dB typical, -9dB maximum
DC Block, AC Coupled
-40° to 85°C
± 1.5 ü ü ü ü
± 2
ü ü ü ü
ü ü
ü ü
ü ü
ü ü
± 2.5 ü ü ü ü
± 3
ü ü ü ü
VCTCXO (on ly)
Ele ctrica l Fre q ue n cy Tun in g :
± 5
ü
ü
ü
ü
3.0 Volts
5.0 Volts
(Control on pin 1)
± 5~ ± 12ppm
for + 1.5± 1V
(< ± 100ppm is also available)
Positive - An increase of control
voltage increases output frequency
10% maximum
± 6~ ± 12ppm
for + 2.5± 2V
ü = Available
X = Not available
Slop e Pola rity:
Lin e a rity:
PART NUMBERING
Example: VEM38S5-12.800-2.5/ -30+ 75
V
EM38
Package
S
5
12.8
Nominal
Frequency
(MHz)
2.5/
Frequency
Stability
-30+ 75
Operating
Temperature
Range
Voltage Control
V = VCTCXO
Output Waveform
S = Clipped Sine
Input Voltage
3 = 3.0 Volts
5 = 5.0 Volts
or Custom
Code
Blank = TCXO
°C to °C
EUROQUARTZ LIMITED Bla ckn e ll La n e CREWKERNE Som e rse t UK TA18 7HE
Te l: + 44 1460 230000 Fa x: + 44 1460 230001 e m a il: in fo@e uroq ua rtz.co.uk we b : www.e uroq ua rtz.co.uk
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