
3-65
Vol. 2
S A LES OFFIC ES : V IS IT OUR WEB S ITE AT
http://w w w.temex.net
OVEN CONTROLLED CRYSTAL OSCILLATORS
QEO SC - SC standard series
N° 10
N° 45
N° 75
How to order
Ex.: QEO SC
19
HQ 28 @
10 MHz
Package Nb
H = -20° C
Q = +70° C
(See table)
Frequency
Stability = 2E-8
Low
Code
High
Code
temp. value
-40° C
-30° C
-20° C
-10° C
-5° C
0° C
temp. value
+50° C
+60° C
+70° C
+75° C
+80° C
+85° C
D
F
H
J
K
L
M
O
Q
R
S
T
Frequency stability
vs. temperature range at 10 MHz
Phase noise measurements
at 10 MHz
6
16
26
36
46
56
66
-10
-9
-8
-7
-6
-5
-4
-3
-2
-1
0
1
2
3
4
5
7
6
8
9
Total T Max = 0.85
T min. = -0.38
F/Fo in 10
-9
Total frequency deviation: 0.43.10
-9
Temperature in °C
Please mention Output signal Waveform (Sine, HCMOS, LVCMOS, LVDS, ...)
Standard SC-cut OCXO specifications
Frequency
in MHz
Phase noise in dBc/Hz
10 Hz 100 Hz 1 kHz 10 kHz Floor 5% supply
Frequency stability vs. Tuning
5% load
Reference
range ±
5
-130
-100
-120
-130
-120
-125
-120
-125
-120
-125
-120
-129
-115
-115
-140
-120
-135
-140
-140
-145
-140
-135
-140
-130
-130
-130
-135
-135
-145
-135
-140
-150
-145
-160
-155
-145
-145
-135
-140
-135
-140
-140
-150
-140
-145
-150
-145
-160
-160
-150
-150
-145
-145
-145
-145
-145
-150
-145
-145
-150
-148
-160
-160
-150
-150
-145
-150
-145
-145
-145
5.10
-10
2.10
-10
1.10
-9
2.10
-9
5.10
-9
5.10
-9
1.10
-9
5.10
-9
5.10
-9
5.10
-9
5.10
-9
5.10
-9
5.10
-9
1.10
-9
5.10
-10
2.10
-10
1.10
-9
2.10
-9
5.10
-9
2.10
-9
1.10
-9
5.10
-9
5.10
-9
5.10
-9
5.10
-9
5.10
-3
2.10
-9
1.10
-9
0.2 ppm QEO SC 10 LQ29@5MHz
1.5 ppm QEO SC 10 J O18@6.4MHz
0.5 ppm QEO SC 45 HT28@8.192MHz
2 ppm QEO SC 19 J Q58@10MHz
1 ppm QEO SC 45 LR29@10MHz
1 ppm QEO SC 45 LO18@10MHz
0.4 ppm QEO SC 75 FQ18@10MHz
0.8 ppm QEO SC 75 J Q18@13MHz
1 ppm
QEO SC 45
HT28@16.384MHz
1 ppm QEO SC 45 LR29@20MHz
0.75 ppm QEO SC 31 J S18@26MHz
1,5 ppm QEO SC 45LQ28@26MHz
1 ppm
QEO SC 45 J Q18@32.768MHz
0.25 ppm QEO SC 17J R18@32.768MHz
6.4
8.192
10
10
10
10
13
16.384
20
26
26
32.768
32.768